Es2500 es5005AC IM EN 0000a
Es2500 es5005AC IM EN 0000a
SME16000600
R160521P3200-TTEC
Ver00 F_2016-07
Trademarks
• The official name of Windows® Vista is Microsoft Windows Vista Operating System.
• The official name of Windows® 7 is Microsoft Windows 7 Operating System.
• The official name of Windows® 8.1 is Microsoft Windows 8.1 Operating System.
• The official name of Windows® 10 is Microsoft Windows 10 Operating System.
• The official name of Windows Server® 2008 is Microsoft Windows Server 2008 Operating System.
• The official name of Windows Server® 2012 is Microsoft Windows Server 2012 Operating System.
• Microsoft, Windows, Windows NT, and the brand names and product names of other Microsoft
products are trademarks of Microsoft Corporation in the US and other countries.
• Apple, AppleTalk, Macintosh, Mac, Mac OS, Safari, iPhone, iPod touch, TrueType, AirPrint, AirPrint
logo, and iPad are trademarks of Apple Inc.
• IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used
under license.
• Adobe, Acrobat, Reader, and PostScript are trademarks or Adobe Systems Incorporated.
• Mozilla®, Firefox® and the Firefox logo® are trademarks or registered trademarks of Mozilla
Foundation in the U.S. and other countries.
• IBM, AT and AIX are trademarks of International Business Machines Corporation.
• NOVELL®, NetWare® and NDS® are trademarks of Novell, Inc.
• FLOIL® is a registered trademark of Kanto Kasei CO., Ltd.
• MOLYKOTE® is a registered trademark of Dow Corning Corporation.
• KAPTON® is a registered trademark of E. I. du Pont de Nemours and Company.
• Sankol® is a registered trademark of SANKEIKAGAKU CO.,Ltd.
• e-STUDIO, e-BRIDGE, and TopAccess are trademarks of Toshiba Tec Corporation.
• Other company names and product names in this manual are the trademarks of their respective
companies.
      Under the copyright laws, this manual cannot be reproduced in any form without prior written
      permission of TOSHIBA TEC CORPORATION.
       GENERAL PRECAUTIONS REGARDING THE SERVICE
          The installation and service shall be done by a qualified service
                                     technician.
1. Transportation/Installation
- When transporting/installing the equipment, employ two or more persons and be sure to hold the
  positions as shown in the figure.
  The equipment is quite heavy and weighs approximately 75.5 kg (166.4 lb.), therefore pay full
  attention when handling it.
- Be sure not to hold the movable parts or units (e.g. the control panel, ADU or RADF) when
  transporting the equipment.
- Be sure to use a dedicated outlet with AC 110V/15A, 120V/12A, 220-240V/8A for its power source.
- The equipment must be grounded for safety.
- Select a suitable place for installation. Avoid excessive heat, high humidity, dust, vibration and direct
  sunlight.
- Provide proper ventilation since the equipment emits a slight amount of ozone.
- To insure adequate working space for the copying operation, keep a minimum clearance of 30 cm
  (11.8”) on the left, 80 cm (32”) on the right and 20 cm (7.9”) on the rear.
- The equipment shall be installed near the socket outlet and shall be easily accessible.
- Be sure to fix and plug in the power cable securely after the installation so that no one trips over it.
- If the unpacking place and where the equipment is to be installed differ, perform image quality
  adjustment (automatic gamma adjustment) according to the temperature and humidity of the place of
  installation and the paper to be used.
- When the equipment is used after the option is removed, be sure to install the parts or the covers
  which have been taken off so that the inside of the equipment is not exposed.
- Do not lift the machine by the areas in the figure that are shaded when lifting it.
2. General Precautions at Service
- Be sure to turn the power OFF and unplug the power cable during service (except for the service
  should be done with the power turned ON).
- Unplug the power cable and clean the area around the prongs of the plug and socket outlet once
  a year or more. A fire may occur when dust lies on this area.
- When the parts are disassembled, reassembly is the reverse of disassembly unless otherwise
  noted in this manual or other related documents. Be careful not to install small parts such as
  screws, washers, pins, E-rings, star washers, harnesses in the wrong places.
- Basically, the equipment should not be operated with any parts removed or disassembled.
- The PC board must be stored in an anti-electrostatic bag and handled carefully using a antistatic
  wrist strap since the ICs on it may be damaged due to static electricity.
Caution: Before using the antistatic wrist strap, unplug the power cable of the equipment and
         make sure that there are no charged objects which are not insulated in the vicinity.
3. General operations
- Check the procedures and perform them as described in the Service Manual.
- Make sure you do not lose your balance.
- Avoid exposure to your skin and wear protective gloves as needed.
5. Cautionary Labels
- During servicing, be sure to check the rating plate and cautionary labels to see if there is any dirt on
  their surface and if they are properly stuck to the equipment.
6. Disposal of the Equipment, Supplies, Packing Materials, Used Batteries and IC-RAMs
- Regarding the recovery and disposal of the equipment, supplies, packing materials, used batteries
  and IC-RAMs including lithium batteries, follow the relevant local regulations or rules.
Caution:
    Dispose of used batteries and IC-RAMs including lithium batteries according to this manual.
Attention:
    Se débarrasser de batteries et IC-RAMs usés y compris les batteries en lithium selon ce manuel.
Vorsicht:
    Entsorgung der gebrauchten Batterien und IC-RAMs (inclusive der Lithium-Batterie) nach diesem
    Handbuch.
                         Revision Record
                                                   File No. SME16000600
                           Ver00 <2016.07.29>
Page                                    Contents
 All   Initial release
Purpose of the Imaging Manual
The Imaging Manual is intended for customers using the Toshiba e-STUDIO2000AC/2500AC/2505AC/3005AC/3505AC/
4505AC/5005AC with a variety of specific needs and inquiries for high image quality, such as:
    How to obtain a clearer copy image
    How to maintain the current image quality
    How to make the text look sharper on the copy
The Toshiba MFPs are factory-configured to provide image quality settings that satisfy the majority of customers.
However, these settings may not be necessarily optimal for the specific needs of all customers. Proper image
quality adjustments can satisfy such needs. Most of the adjustments described in this manual must be performed
by a service technician, but a few of them can also be performed by the customer.
It is strongly recommended that this manual be fully utilized by not only the service technician, but also the sales
representative, who also has opportunities of obtaining customer feedback on the image quality. This manual
helps the sales representative to study and comprehend what kind of customer requirements for image quality
can be satisfied, to make proposals to customers to improve image quality, and to communicate the customers’
specific requirements with ease to the service technician. In addition, this manual is expected to facilitate the
marketing of Toshiba MFPs to prospective customers that have a specific demand for image quality and the
expansion of sales.
The adjustments described in this manual are all based on the requests of actual customers. Meeting their
specific wishes will only add to their satisfaction.
Please remember to read "Caution after the adjustment," to which you must pay close attention, after finishing
the adjustment.
Precautions in Servicing
• For adjustments to be performed by the service technician, the precautions given in the Service Manual must be
 stringently followed. The adjustments must be performed by a qualified service technician who has completed
 the service training course.
• The default listed mentioned in this manual may be different from the actual ones, due to the timing of shipping
 (firmware version). But note that the recommended values and acceptable value range stated in this manual
 remain the same.
Purpose of the Imaging Manual
Icons
The following icons used in this manual denote the following:
                   : • Copy ——— An adjustment having an effect on copying in the Black mode (excluding
                                   the Image smoothing mode)
                     • Printer ——– An adjustment having an effect on Black and White mode printing
                                   * The adjustment will be effective, if "Black and White" is selected from
                                     among the "Color" options on the Windows printer driver or if "Mono"
                                     is selected from among the "Color Type" options on the Macintosh print
                                     dialog.
                     • Scan ——— An adjustment having an effect on scanning in the Black mode
                   : • Copy ——–– An adjustment having an effect on copying in the Image smoothing mode
                                 in the Black mode
                     • Scan ——— An adjustment having an effect on scanning in the Gray scale mode
                   : • Copy ——— An adjustment having an effect on copying in the Full color mode
                     • Printer ——– An adjustment having an effect on full-color printing
                                   * The adjustment will be effective, if "Auto" or "Color" is selected from
                                     among the "Color" options on the Windows printer driver or if "Auto" or
                                     "Color" is selected from among the "Color Type" options on the
                                     Macintosh print dialog.
                     • Scan ——— An adjustment having an effect on scanning in the Full color mode
                   : • Copy ——— An adjustment having an effect on copying in the Auto color mode
                     • Scan ——— An adjustment having an effect on scanning in the Auto color mode
        PCL6       : An adjustment having an effect on printing with the Windows PCL6 emulation printer
                     driver
PS3 : An adjustment having an effect on printing with the Windows PS3 emulation printer driver
                   : An adjustment having an effect on printing with the Windows PSX emulation printer
        XPS          driver
                   : An adjustment having an effect on an image stored in the e-Filing box by the copying
   Copy to Box       functions (Copy to Box)
                   : An adjustment having an effect on an image stored in the e-Filing box by the printing
   Print to Box      functions (Print to Box)
                   : An adjustment having an effect on an image stored in the e-Filing box by the Fax and
    Fax to Box       Internet Fax functions (including Received Fax to Box and Received Internet Fax to Box)
     Table of Contents
2. Copier-specific Adjustments
2.1      To Copy Text Clearly (To eliminate faint, smudged or blurred text) .............. 2-1
         2.1.1 To Adjust the Copy Image Quality in the Black Mode ..................................... 2-2
         2.1.2 To Adjust the Copy Image Quality in the Full Color Mode ............................... 2-7
2.2      To Closely Match the Color Balance of the Original.................................... 2-13
2.3      To Improve the Reproducibility of Gray ....................................................... 2-18
2.4      To Copy in Vivid Colors .............................................................................. 2-21
2.5      To Make the Pale Area of the Original Look Darker and Sharper (To improve the
         highlight reproducibility) .............................................................................. 2-26
2.6      To Eliminate the Background Color ............................................................ 2-30
         2.6.1 To Adjust the Copy Image Quality in the Black Mode ................................... 2-31
         2.6.2 To Adjust the Copy Image Quality in the Full Color Mode ............................. 2-33
2.7      To Avoid Copying the Image Seen through the Back of a Page Printed on Thin
         Paper .......................................................................................................... 2-36
         2.7.1 To Adjust the Copy Image Quality in the Black Mode ................................... 2-37
         2.7.2 To Adjust the Copy Image Quality in the Full Color Mode ............................. 2-40
2.8      To Eliminate Moiré ...................................................................................... 2-42
2.9      To Copy Sharply (To enhance sharpness) ................................................. 2-46
2.10     To Make Photo Edges Look Softer ............................................................. 2-49
2.11     To Make Solid Filled Bold Text (Logo) Highly Colored ................................ 2-54
         2.11.1 To Adjust the Copy Image Quality of a Black Logo ..................................... 2-55
         2.11.2 To Adjust the Copy Image Quality of a Colored Logo ................................. 2-57
2.12     To Sharply Contrast the Hues of Highlighters on the Copy ......................... 2-59
2.13     To Obtain a Good Color Balance on Thick Paper ....................................... 2-63
2.14     To Obtain Smooth Gray-Scale Photo Images ............................................. 2-67
2.15     To Change the Threshold in Auto Color Mode (To change the threshold
         between the Full Color mode and the Black mode to meet the user‘s needs). 2-68
2.16     To Adjust the Twin-Color Copy Image Quality ............................................ 2-71
         2.16.1 To Adjust the Tint of Colors other than Black .............................................. 2-72
         2.16.2 To Adjust the Boundary between Black and Colors other than Black ......... 2-73
         2.16.3 To Adjust the Tint of Specified Colors for Twin-Color or Single-Color Copying
         ................................................................................................................................. 2-74
2.17     To Adjust the Image Quality Scanned from the DF ..................................... 2-76
2.18     To Program Frequently Used Copy Settings (To Use Custom Mode) ....... 2-79
         2.18.1 To Adjust Custom Mode Settings in Black Mode......................................... 2-79
         2.18.2 To Adjust Custom Mode Settings in Full Color Mode .................................. 2-80
2.19     To Copy While Erasing Shadow Outside of Image ..................................... 2-81
2.20     To Avoid Copying Blank Page of Original Scanned with DF ....................... 2-82
2.21     To Obtain Image in Even Density Level ...................................................... 2-84
2.22     To Improve Reproducibility of Red Seal Color ............................................ 2-86
e-STUDIO2000AC/2500AC/2505AC/3005AC/3505AC/4505AC/5005AC (Ver00)                    © 2016 TOSHIBA TEC CORPORATION All rights reserved
                                                                      i
Table of Contents
3. Printer-specific Adjustments
Restrictions on Use of Printer Functions.................................................................. 3-1
3.1    To Maintain a Steady Color Balance ............................................................. 3-2
3.2    To Maintain a Steady Color Balance on Thick Paper or Special Paper .............. 3-4
3.3    To Obtain the Desired Color Balance ........................................................... 3-7
3.4    To Closely Match the Color Balance on the Monitor ................................... 3-15
3.5    To Maintain a Uniform Gray Hue (To maintain Consistency in Gray among
       Text, Photos and Graphics) ........................................................................ 3-18
3.6    To Use Only the Black Toner to Reproduce Gray Areas (To use only the black
       toner to reproduce black-and-white photos or gradational images) ............ 3-21
3.7    To Easily Adjust the Overall Brightness ...................................................... 3-25
3.8    To Adjust the Overall Saturation ................................................................. 3-28
3.9    To Easily Adjust the Overall Contrast ......................................................... 3-32
3.10 To Obtain a Sharper Print Image ................................................................ 3-35
3.11 To Obtain a Softer Image ............................................................................ 3-39
3.12 To Make Low-resolution Data Look Finer (To soften an image) ................. 3-43
3.13 To Eliminate Smudges from Highly Colored Text and Lines (To prevent toner
       scattering around text and lines where a large amount of toner is used) .... 3-47
3.14 To Clearly Print Light-Colored Thin Lines or Text ....................................... 3-54
         3.14.1 To Adjust the Print Image Quality in the Color Mode................................... 3-55
         3.14.2 To Adjust the Print Image Quality in the Black and White Mode ................. 3-64
3.15     To Make the Light-Colored Area Darker on the Printout ............................. 3-71
3.16     To Clearly Print Thin Lines/Double Lines .................................................... 3-78
3.17     To Decrease the Image Density and Save Toner (To Print in the Toner Save
         Mode) .......................................................................................................... 3-83
3.18     To Adjust the Image Density in the Toner Save Mode ................................ 3-86
3.19     To Print Illegible Gray or Colored Text in Black .......................................... 3-89
3.20     To Ignore Blank Pages for Printing ............................................................. 3-91
3.21     To Sharply Print Black Text......................................................................... 3-94
3.22     To Prevent Dark Toner from Coming Off .................................................. 3-104
3.23     To Register the Image Quality Adjusted Corresponding to a Preference (To
         use the Custom Color Settings) ................................................................ 3-106
3.24     To Print a Full-Color Original in Two Colors .............................................. 3-109
         3.24.1 To Adjust Colors ........................................................................................ 3-110
         3.24.2 To Adjust the Sharpness ........................................................................... 3-115
         3.24.3 To Print a Full-Color Original in Two Colors .............................................. 3-118
3.25     To Use ICC Profile .................................................................................... 3-119
         3.25.1 To Create ICC Profiles for Printing on the Paper to be Used .................... 3-120
         3.25.2 To Print Precise Colors Using Existing RGB Source ICC Profiles ............. 3-125
         3.25.3 To Perform Simulated Printing with CMYK Inks of Each Ink Manufacturer .........
              ....................................................................................................................... 3-129
         3.25.4 To Print Using Custom RGB Profiles ......................................................... 3-133
         3.25.5 To Convert Colors with Specified Source ICC Profiles (Not Using Embedded
                ICC Profiles)............................................................................................... 3-137
         3.25.6 To Perform Further Adjustment After Using ICC Profiles .......................... 3-142
3.26     To Improve the Reproducibility of Red Seal Color .................................... 3-145
3.27     To Suppress the Unevenness on Images ................................................. 3-147
3.28     To Suppress Color Misalignment .............................................................. 3-148
3.29     To Adjust Smudged Black Text and Black Thin Lines ............................... 3-149
4. e-Filing-specific Adjustments
4.1      To Clearly Store a B/W Image in the Auto Color Mode ................................. 4-1
4.2      To Store an Original while Reducing the File Size ........................................ 4-3
4.3      To Match the Color Balance on the Original (To adjust the color balance in
         Print to Box) .................................................................................................. 4-5
4.4      To Scan and Print, while Minimizing Moiré ................................................... 4-7
4.5      To Finely Print the Image Stored in the e-Filing box (To print images stored
         through Copy to Box or Print to Box) ............................................................ 4-9
4.6      To Store an Image Suitable for Displaying on the Monitor or Image Editing 4-11
4.7      To Finely Print Color Images Scanned and Stored (To print images stored
         through Scan to Box) .................................................................................. 4-13
4.8      Appendix ..................................................................................................... 4-15
5. Scanning-specific Adjustments
5.1      To Clearly Scan Text (To reduce noise around text)..................................... 5-1
5.2      To Scan an Original, while Eliminating the Background Color (To eliminate the
         background density) ...................................................................................... 5-3
5.3      To Clearly Scan and Print an Original in Black and White (To improve
         gradation and reduce graininess) .................................................................. 5-5
5.4      To Scan the Original, while Reducing the File Size ...................................... 5-6
         5.4.1 To Reduce the File Size by Changing the Options when Scanning the Original
            ............................................................................................................................... 5-7
         5.4.2 To Reduce the File Size in Slim PDF ............................................................ 5-10
5.5      To Sharply Scan the Original (To increase the sharpness intensity)........... 5-12
5.6      To Scan an Original, while Enhancing Black............................................... 5-14
5.7      To Scan an Original with the Desired Gradation ......................................... 5-16
5.8      To Register the Original Mode Optimal for a Particular Type of Original (To
         have "Custom" selected) ............................................................................. 5-18
5.9      To Eliminate Shading around Scanned Images .......................................... 5-21
5.10     To Scan Yellow Clearly ............................................................................... 5-22
5.11     To Reduce Streaks in Scanning with DF .................................................... 5-24
The output image looks light and blurred. The output image looks darker and sharper.
 Explanation
When an original containing photo images or gradational images is printed, the output image sometimes looks
light and blurred. Perform image quality control or automatic calibration, and adjust the transfer roller bias
output, in order to obtain a darker and sharper image.
 Procedures
* Perform the adjustment in accordance with the procedures below.
* Both the service technician and the user can use procedure (1).
* Only the service technician must use procedures (2) and (3).
         * To correct variations in image density by performing automatic calibration for each paper type, refer
            to " (1) Perform automatic calibration for each paper type to correct variations in image density" in
            "2.13 To Obtain a Good Color Balance on Thick Paper".
    After performing automatic calibration, print and check the image quality.
    If further image quality adjustments are necessary, go to step (2) to adjust the transfer (2nd transfer) roller
    bias output.
         * To correct variations in image density by performing automatic calibration for each paper type, refer
           to "3.2 To Maintain a Steady Color Balance on Thick Paper or Special Paper".
    After performing automatic calibration, print and check the image quality.
    If further image quality adjustments are necessary, go to step (2) to adjust the transfer (2nd transfer) roller
    bias output.
    After performing automatic calibration, print and check the image quality.
    If further image quality adjustments are necessary, go to step (2) to adjust the transfer (2nd transfer) roller
    bias output.
   After performing simple calibration, print the image and check its quality.
   If further image quality adjustments are necessary, carry out the next procedure.
(2) Select [05 ADJUSTMENT MODE]. Change the values for codes [2934 to 2937] to adjust the transfer (2nd
    transfer) roller bias output.
    (Adjust the offset voltage of transfer roller bias so as to increase the density of the image.)
    • The code to use varies depending on the paper type. Adjust the value for [05] code corresponding to the
      paper type for which you would like to improve the image quality. Set the value within a range of "2" to
      "8" to obtain the highest density of the image.
                                                                             Recommended            Acceptable
                   Paper type                 [05] code     Subcode                                                   Default
                                                                                 value              value range
                              Plain/Thick                           0
                                Thick 1                            1
                                Thick 2                            2
                               Thick 3*                            3
                                 OHP                               4
                               Special 1                           5
                    Front                      05-2934                             2 to 8              0 to 10               5
                               Special 2                           6
                             Recycled paper                        7
                               Thick 4*                            8
                                 Thin*                             9
                               Envelope                            10
      Full color              Special 3*                           11
                              Plain/Thick                           0
                                Thick 1                            1
                                Thick 2                            2
                               Thick 3*                            3
                               Special 1                           5
                    Back       Special 2       05-2935             6               2 to 8              0 to 10               5
                             Recycled paper                        7
                               Thick 4*                            8
                                 Thin*                             9
                               Envelope                            10
                              Special 3*                           11
                              Plain/Thick                           0
                                Thick 1                            1
                                Thick 2                            2
                               Thick 3*                            3
                                 OHP                               4
                               Special 1                           5
                    Front                      05-2936                             2 to 8              0 to 10               5
                               Special 2                           6
                             Recycled paper                        7
                               Thick 4*                            8
                                 Thin*                             9
                               Envelope                            10
        Black                 Special 3*                           11
                              Plain/Thick                           0
                                Thick 1                            1
                                Thick 2                            2
                               Thick 3*                            3
                               Special 1                           5
                    Back       Special 2       05-2937             6               2 to 8              0 to 10               5
                             Recycled paper                        7
                               Thick 4*                            8
                                 Thin*                             9
                               Envelope                            10
                              Special 3*                           11
e-STUDIO2000AC/2500AC/2505AC/3005AC/3505AC/4505AC/5005AC (Ver00)        © 2016 TOSHIBA TEC CORPORATION All rights reserved
                                                          1-4
                                            1. General Adjustments – Copying, Printing and e-Filing (Output from Box)
    * "Front" refers to the printed side in the simplex mode or the side that is delivered facing upwards in the duplex mode.
      "Back" refers to the printed side that is delivered facing downwards in the duplex mode.
    * The table below shows you the acceptable paper weight for the paper type.
       Paper type                           Acceptable paper weight
        Plain paper               60 to 80 g/m²                    16 to 21 lb. Bond
           Thick                 81 to 105 g/m²                    22 to 28 lb. Bond
          Thick 1               106 to 163 g/m²                    Max. 60 lb. Cover
          Thick 2               164 to 209 g/m²                   Max. 110 lb. Index
         Thick 3*               210 to 256 g/m²                   Max. 140 lb. Index
         Thick 4*               257 to 280 g/m²                   Max. 100 lb. Cover
           Thin*                  52 to 59 g/m²                    14 to 16 lb. Bond
     *e-STUDIO2505AC/3005AC/3505AC/4505AC/5005AC only
    • After adjusting the transfer roller bias output, perform automatic calibration in the same manner as in
      procedure (1).
    <Hint>       The transfer voltage increases as the set value is increased. It is usually recommended that the
                 set value be increased, when you print on thick paper or paper with asperities on its surface. On
                 the other hand, the set value should be decreased, when you print on thin paper.
    After adjusting the density, print and check the image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(3) Check the life of the consumables (particularly the drum and fuser unit) and replace them, if necessary.
    • When replacing any consumable, use steps (a) to (c).
        (a) Enter the PM support mode. Reset the counter corresponding to the replaced consumable to "0."
           * For further information regarding the PM support mode, refer to the Service Manual.
        (b) Select [05 ADJUSTMENT MODE], select code [2742], and then press the [START] button.
           • Image quality control will be performed and the image quality control value will be initialized.
        (c) Perform automatic calibration in the same manner as in procedure (1).
    * After replacing any consumable, remember to reset the counter corresponding to it to "0." Otherwise, it
      may cause a loss in MFP performance, including degradation in the image quality and a reduction in the
      life of the consumables.
 Remarks
• Enter the value mentioned in the procedures or one within the recommended value range for the adjustment.
  Otherwise, it may cause a loss in MFP performance, including degradation in the image quality and a reduction
  in the life of the consumables.
• If printing on another type of paper causes a problem with the image quality after the adjustment, return the set
  values (for codes 05-2934 to 2937) to the default (set value: 5) and then perform the adjustment again.
• When replacing any consumable, refer to the relevant information in the Service Manual.
The solid colored area becomes lighter. The solid colored area becomes darker.
 Explanation
The density of a certain color can be made darker or lighter in accordance with the type of paper or the content of
an original.
When the toner amount on solid areas must be adjusted as requested by a user, an image quality target value or
developer bias must be adjusted.
The correction amount needed varies depending on the status of use of the consumables such as the developer
material or the drums, or the status of the installation site.
Since a constant value will be applied regardless of the influences of the above status in the developer bias
adjustment, perform image quality adjustment while changing the target value as much as possible.
 Procedures
* The service technician must perform the adjustment in accordance with the procedures below.
(1) Select [05 ADJUSTMENT MODE]. Adjust the density of the copied or printed solid image.
• Use steps (a) to (b) to perform the adjustment.
   (a)Select [05 ADJUSTMENT MODE] and change the value for code [2662] to correct the image quality target value.
           Color to                                                                     Default
                             [05] Code        Subcode
            adjust                                               e-STUDIO2000AC         e-STUDIO2505/3505/4505/5005
       Y (Yellow)                                   0                 322                                 333
       M (Magenta)                                  1                 312                                 303
                               05-2662
       C (Cyan)                                     2                 327                                 337
       K (Black)                                    3                 333                                 328
     *When the value becomes larger than the present one, and the solid image becomes darker. When it
       becomes smaller, the image becomes lighter.
       The value must fall within a range of -50 and +50 from the default.
e-STUDIO2000AC/2500AC/2505AC/3005AC/3505AC/4505AC/5005AC (Ver00)       © 2016 TOSHIBA TEC CORPORATION All rights reserved
                                                            1-6
                                            1. General Adjustments – Copying, Printing and e-Filing (Output from Box)
It is recommended that the changing amount for one time falls within ± 20 bits.
   (b) Select [05 ADJUSTMENT MODE], select code [2742] and then press the [START] button.
       After performing image quality control, print the image and check its quality on the solid areas.
(2) Select [08 SETTING MODE]. Change the value to adjust the density of a solid area during the
    copying/printing operation.
            * The value to use varies depending on the paper type and color to adjust. Check the code to use in
              accordance with the following "Code" list, and refer to the "Value" list to select a proper value.
            * The table below shows you the acceptable paper weight for the paper type.
                        Paper type                             Acceptable paper weight
                       Plain/Recycled                   60 to 80 g/m²                Max. 60 lb. Cover
                            Thick                      81 to 105 g/m²               Max. 110 lb. Index
                            Thin*                       52 to 59 g/m²                14 to 16 lb. Bond
            * e-STUDIO2505AC/3005AC/3505AC/4505AC/5005AC only
         (b) Select [05 ADJUSTMENT MODE], select code [2742], and then press the [START] button.
            After the image quality control is finished, perform printing to check the image quality of the solid
            colored area.
            * The changed setting values for 08-2513/2514 will be effective for the image printed immediately
              after the change. When these values are changed, performing image quality control with 05-2742 is
              recommended.
    Repeat procedures (a) to (b) as required in order to change the setting value so that the solid colored area
    becomes your desired density.
    Since the density of a gradation area (halftone), such as a photograph, is adjusted as well as that of a solid
    colored image, follow the procedure below.
(3) Perform automatic calibration for each type of paper whose density has been adjusted by means of the
    following flowchart.
    * This flowchart is common for the Full color and Black modes.
Finish
    After automatic calibration, perform printing and check the image quality.
    If further image quality adjustments are necessary, perform the next step.
(4) Check the life of the consumables (particularly the drum and transfer belt unit) and replace them, if
    necessary.
    • When replacing any consumable, use steps (a) to (b).
         (a) Enter the PM support mode. Reset the counter corresponding to the replaced consumable to "0."
            * For further information regarding the PM support mode, refer to the Service Manual.
              Be sure to reset the counter. Otherwise, it may cause a loss in performance, including degradation
              in the image quality and a reduction in the life of the consumables.
    * After replacing any consumable, remember to reset the counter corresponding to it to "0." Otherwise, it
      may cause a loss in MFP performance, including degradation in the image quality and a reduction in the
      life of the consumables.
• No effect of the adjustment may appear, depending on the operating environment of the MFP. Therefore,
 carefully perform the adjustment, while checking the copy or print image.
 Remarks
• The effect of the adjustment may vary, depending on the usage pattern of the consumables, such as the
 developer material and drum, and the operating environment of the MFP.
• When replacing any consumable, refer to the relevant information in the Service Manual.
1.3 To Achieve the Image Quality Most Suitable for the Paper Used
                                                   (To eliminate blur and graininess from an image)
 The image looks grained, depending on the                          A clear image quality, most suitable for a type
 type of paper.                                                     of paper used, is obtained.
 Explanation
The image sometimes looks slightly blurred or grained on the copy or printout, depending on the type of paper
used. Adjust the transfer roller bias output and the fuser temperature, in order to achieve the image quality most
suitable for the paper used.
 Procedures
* All the steps in the adjustment must be performed by the service technician. The procedure to be followed
 differs depending on the purpose as follows:
  • To adjust halftone image: Go to step (1)
  • To adjust images on the high-density area (only when recycled paper is used): Go to step
(1) Select [05 ADJUSTMENT MODE]. Change the values for codes [2934 to 3937] to adjust the transfer (2nd
    transfer) roller bias output.
     (Adjust the offset voltage of transfer roller bias so as to optimize the halftones.)
    • The code to use varies depending on the paper type. Adjust the value for [05] code corresponding to the
      paper type for which you would like to improve the image quality. Set the value within a range of "2" to
      "8" to optimize the halftones.
                                                                          Recommended            Acceptable
                Paper type                 [05] code      Subcode                                                    Default
                                                                              value              value range
                           Plain/Thick                             0
                             Thick 1                              1
                             Thick 2                              2
                            Thick 3*                              3
                              OHP                                 4
                            Special 1                             5
                Front                        05-2934                             2 to 8              0 to 10                5
                            Special 2                             6
                          Recycled paper                          7
                            Thick 4*                              8
                              Thin*                               9
                            Envelope                              10
       Full
                           Special 3*                             11
       color
                           Plain/Thick                             0
                             Thick 1                              1
                             Thick 2                              2
                            Thick 3*                              3
                            Special 1                             5
                Back        Special 2        05-2935              6              2 to 8              0 to 10                5
                          Recycled paper                          7
                            Thick 4*                              8
                              Thin*                               9
                            Envelope                              10
                           Special 3*                             11
                           Plain/Thick                            0
                             Thick 1                              1
                             Thick 2                              2
                            Thick 3*                              3
                              OHP                                 4
                            Special 1                             5
                Front                        05-2936                             2 to 8              0 to 10                5
                            Special 2                             6
                          Recycled paper                          7
                            Thick 4*                              8
                              Thin*                               9
                            Envelope                              10
      Black                Special 3*                             11
                           Plain/Thick                             0
                             Thick 1                              1
                             Thick 2                              2
                            Thick 3*                              3
                            Special 1                             5
                Back        Special 2        05-2937              6              2 to 8              0 to 10                5
                          Recycled paper                          7
                            Thick 4*                              8
                              Thin*                               9
                            Envelope                              10
                           Special 3*                             11
    * "Front" refers to the printed side in the simplex mode or the side that is delivered facing downwards in the duplex
      mode.
      "Back" refers to the printed side that is delivered facing upwards in the duplex mode.
    * The table below shows you the acceptable paper weight for the paper type.
       Paper type                          Acceptable paper weight
        Plain paper              60 to 80 g/m²                     16 to 21 lb. Bond
           Thick                 81 to 105g/m²                     22 to 28 lb. Bond
          Thick 1               106 to 163 g/m²                    Max. 60 lb. Cover
          Thick 2               164 to 209 g/m²                   Max. 110 lb. Index
         Thick 3*               210 to 256 g/m²                   Max. 140 lb. Index
         Thick 4*               257 to 280 g/m²                   Max. 100 lb. Cover
           Thin*                 52 to 59 g/m²                     14 to 16 lb. Bond
    * e-STUDIO2505AC/3005AC/3505AC/4505AC/5005AC only
    • After adjusting the transfer roller bias output, perform automatic calibration.
      * For further information regarding the procedures, refer to procedure (1) in 1.1 To Obtain a Darker Image.
    <Hint>       The transfer voltage increases as the set value is increased. It is usually desirable that the set
                 value be decreased to obtain a clearly highlighted area.
    After performing the adjustment, print and check the image quality.
    If further image quality adjustment is necessary, go to step (3).
(2) If the image on the high-density area looks grained on plain paper other than the TOSHIBA-recommended
    one is used, select "recycled paper" as a paper type.
    * To select the paper type, refer to the Operator’s Manual for Copying Guide.
    • If fine adjustment of image quality in the recycled paper mode is required in accordance with the paper
      type, follow the steps from (a) to (b) below.
         (a) Select [05 ADJUSTMENT MODE]. Change the value of the codes [2934] to [2937] to adjust (2nd)
            transfer bias output. (In this step the transfer roller bias offset voltage is adjusted to print the high-
            density area or the halftone area of the image most clearly.)
                                                                                  Recom         Accepta
                                                                       Subco
                            Paper type                 [05] code                  mended        ble value        Default
                                                                        de
                                                                                   value          range
                                         Recycled
                               Front                    05-2934           7          2 to 8       0 to 10             5
                                          paper
               Full color
                                         Recycled
                               Back                     05-2935           7          2 to 8       0 to 10             5
                                          paper
                                         Recycled
                               Front                    05-2936           7          2 to 8       0 to 10             5
                                          paper
                 Black
                                         Recycled
                               Back                     05-2937           7          2 to 8       0 to 10             5
                                          paper
            * "Front" refers to the printed side in the simplex mode or the side that is delivered facing downwards
              in the duplex mode.
              "Back" refers to the printed side that is delivered facing upwards in the duplex mode.
            • After adjusting the transfer roller bias output, perform automatic calibration.
            * Refer to step (1) in "1.1 To Obtain a Darker Image".
    <Hint>       The larger the setting value is, the more the transfer voltage increases. It is usually
                 recommended that the set value be increased when you print on thick paper or paper with
                 asperities on its surface. On the other hand, the set value should be decreased when you print on
                 thin paper.
    After setting the value, print and check the image quality.
    If further image quality adjustment is necessary, go to step (b).
         (b) Select [08 SETTING MODE]. Change the value of the codes [5293/5294] to adjust fusing
            temperature in the recycled paper mode. (In this step fusing temperature is adjusted to print the high-
            density area of the image most clearly.)
                                                                                                        Accepta
                                               Paper                                   Recommen
                      Adjustment                          [08] code      Subcode                        ble value     Default
                                                type                                    ded value
                                                                                                          range
                                   Black      Recycled                       0
                Center heater                              08-5293                        9 to 11        0 to 22         11
                                    Color      paper                         1
    <Hint>       The smaller the setting value, the lower the fusing temperature becomes. It is usually
                 recommended that the set value be decreased in order to suppress roughness on the high-density
                 area of the image. Adjust the value within the range of the recommended values while checking
                 the image carefully because if it is too small, insufficient fusing may occur.
                 Since temperatures on the long side of the paper cannot be kept in a proper balance, the same
                 value must be set for the [08] codes [5293] and [5294] unless otherwise required so.
    After setting the value, print and check the image quality.
    If further image quality adjustment is necessary, go to step (3).
(3) Check the life of the consumables (particularly the drum and transfer belt unit) and replace them, if
    necessary.
    • When replacing any consumable, use steps (a) to (b).
         (a) Enter the PM support mode. Reset the counter corresponding to the replaced consumable part to "0."
            * For further information regarding the PM support mode, refer to the Service Manual.
         (b) Perform automatic calibration.
            * For further information regarding the procedures, refer to procedure (1) in 1.1 To Obtain a Darker
              Image.
    * After replacing any consumable, remember to reset the counter by making it correspond to "0." Otherwise,
      it may cause a loss in MFP performance, including degradation in the image quality and a reduction in the
      life of the consumables.
 Remarks
• Enter the value mentioned in the procedures or one within the recommended value range for the adjustment.
 Otherwise, it may cause a loss in MFP performance, including degradation in the image quality and a reduction
 in the life of the consumables.
• The desired image quality may not be obtained, depending on the type of paper used. In this case, use the
 recommended paper and then print or adjust the image quality.
• If an image problem occurs when you use the other paper type, temporarily set the values of the [08] codes
 [2934] to [2937] (bias offset) and [5293] to [5294] (fusing temperature during printing) back to the default ones.
 Then perform the adjustment again.
• When replacing any consumable, refer to the relevant information in the Service Manual.
1.4 To Minimize Variations in the Image Quality under the Operating Conditions
                                                           (To optimally program image quality control)
 The image contrast varies, depending on the                        The image quality is constantly maintained.
 date and time when copying or printing is
 performed or the type of job.
 Explanation
Variation in density may appear on images depending on date and time when copying or printing is performed or
the type of a job. To maintain image quality at a certain level, the types or the intervals among image quality
controls must be adjusted.
There are two image quality control modes; the Short Mode which is only for adjusting density on solid images
in a short time, and the Full Mode which is for adjusting density on the wide areas from halftones to solid images.
 Procedures
* The service technician must perform the adjustment in accordance with the procedures below.
(1) The types or the intervals in image quality controls must be adjusted by setting the most appropriate value
    for [08] code in accordance with the status of use or stability level required by a user. See the table below for
    an overview of image quality controls.
    (1)-1. Overview of image quality controls:
      (5)Accumulated number of                                     Set the number of the output pages. Code: 08-2509,
      output pages (Full)                     o                    Default: 1000 pages *4
      (6) Accumulated number of                                    Set the number of the output pages. Code: 08-2497,
      output pages (Short, Color)                        o         Default: 50 pages *4 *5
      (7) Accumulated number of
                                                         o                                        ↑
      output pages (Short, Black)
    *3. The Short Mode is set as a default because the MFP can be recovered from warming-up or the Sleep
      Mode in a shorter time. For more stable image quality, switch it to the Full Mode.
    *4. During continuous copying or printing, the control does not start until all jobs are finished.
      If the control needs to be started when the specified number of pages has been output, also change the
      setting value for code 08-9199 (automatic interruption page number setting for printing). (Default: 500
      pages)
    *5. In the Short Mode, the image quality control starts individually for each counter of the Black Mode and
      the Color Mode. When the control is performed for the Color Mode, the counter for the Black Mode is also
      reset. However,the counter for the Color Mode is not reset when the control is performed for the Black
      Mode.
    *6: 0 (Disabled) or 1 (Short) is set for 08-9264. If the equipment is left unused for two hours or more, the
      Full mode ICQ starts after the end of a job in order to maintain the image quality.
(1)-2. The MFP is installed in a place where the temperature and humidity vary widely:
    (a) Set "1" (value × 5%R.H.) for code 08-2505 to increase the frequency of image quality control, in
         response to a change in humidity.
       * Image quality control will be performed, when the relative humidity changes in accordance with the
         specified difference from the previous image quality control. If the difference in the relative humidity
         exceeds the specified value, image quality control is performed first. Then a copy or print job will be
         performed.
    (b) Set "5" or "3" for code 08-2508 to increase the frequency of image quality control, in response to a
         change in humidity.
       * Image quality control will be performed, when the drum temperature changes in accordance with the
         difference from the previous image quality control. If the difference in the drum temperature exceeds
         the specified value after a print job is performed, image quality control is performed.
    • After setting the value for code 08-2505, forcibly perform image quality control, as follows:
      Select [05 ADJUSTMENT MODE]. Select code [2742]. Press the [START] button.
    (1)-3. To Have Uniform Variations in the Image Quality after Return from the Auto Power Save
    Mode:
    Change the value of the [08] code [2507] to change the conditions for starting image quality control (shorten
    the period of time the MFP is left unused) after the MFP was recovered from the auto power save mode, so
    that the image quality control will be easily performed.
    For a more stable image quality on halftones, switch the image quality control to start to the Full Mode with
    code 08-2492. (0: Disabled, 1: Short, 2: Full)
         Value for
                       Period of time the MFP is left unused before starting image quality control
         08-2507
             0         3 minutes or longer
             1         5 minutes or longer
             2         7 minutes or longer
             3         10 minutes or longer
             4         15 minutes or longer
             5         20 minutes or longer
             6         30 minutes or longer
             7         45 minutes or longer
             8         60 minutes or longer
             9         90 minutes or longer
            10         120 minutes or longer
             11        150 minutes or longer
            12         180 minutes or longer
            13         240 minutes or longer
            14         300 minutes or longer
            15         360 minutes or longer (default value)
            <Note>      Do not disable the Auto shut off mode timer setting ("0" is set for 08-9112) while the
                        Auto power save timer setting is set to invalid ("0" is set for 08-9111). If both settings are
                        set to invalid, this equipment does not enter the energy saving mode so it is always in the
                        ready status. Due to this, image quality control according to the period of time the MFP
                        is left unused is not performed regardless of the setting value of 08-2507.
    • After setting the value for code 08-2507, forcibly perform image quality control, as follows:
      Select [05 ADJUSTMENT MODE], select code [2742], and then press the [START] button.
    (1)-4. To optimize the image quality stability according to the number of output pages in a day or
    the type of originals:
    By changing the setting value for [08] codes, the image quality control can be started at the desired timing
    after the specified number of pages have been output. Referring to the guide below, set the value
    appropriately in accordance with the total number of pages output in a day, the number of jobs frequently
    performed, or the requested image quality in the user’s office.
    After changing the setting value, perform the image quality control following the procedure below.
    Select [05 ADJUSTMENT MODE]. Select code [2742]. Press the [START] button.
    After performing the adjustment, print the image and check its quality.
       (C). To stabilize the image quality on halftones in pictures (when interrupting jobs and
       starting the Full Mode at every 250 pages)
                  Code to set     Setting                               Starting conditions
                   number of
                     pages        value *7
     Full IQC          08-2509          250         The control starts after every 250 pages.
     Short IQC                                      The control starts after 50 pages have been output, or when a
                       08-2497          100
                                                    job is interrupted after every 250 pages.
     Printing
                   08-9199           250
    interrupted
   *7. When the number of times in the Full Mode increases, more toner is consumed.
   Notes:
   ・Set the value in consideration of users’ requests and the total number of pages output in a day. To maintain
     the optimal image quality, it is recommended to start the Short Mode at least two or three times a day.
   ・Do not set the number of output pages smaller than 50 for codes 08-2509 and 08-9199 because this affects
     the life of consumables such as a cleaning blade.
   ・Changing this setting improves the stability of the image quality. However, a long application of this
     change affects the life of consumables. It is recommended to make only a minimal change and then
     return to the default value immediately.
   ・ If 08-2367 (ON/OFF setting of drum and belt reverse rotation amount control) is set to “0”, there is no
     effect because interrupting a job does not cause image quality control, regardless of the setting value of 08-
     2509 and 08-9199.
(2) Use the thick paper mode when you print on plain paper.
    • If the thick paper mode is used, printing decelerates but image quality becomes more stable because
      differences in color or temperatures during continuous printing will be reduced.
    • Set the thick paper mode following steps (a) to (i) below.
         (a) Press [USER FUNCTIONS] on the Control Panel to enter the “User Functions” menu.
         (b) Press [USER].
         (c) Press [DRAWER] in the USER menu.
         (d) Select a drawer that you want to set for thick paper mode and paper size.
         (e) Press [PAPER TYPE].
         (f) Press [THICK 1].
         (g) Select [05 ADJUSTMENT MODE]. Then select the subcode “1” for the code [2934] and change the
            setting value to “3”.
            • Change the level of transfer roller bias offset in the color mode, the front side of paper.
            * Check how the copy image changes carefully. The setting value may be changed to “4” or “2” if
              required.
         (h) Place paper to be used on the drawer that you selected in step (d) above.
         (i) Perform automatic calibration.
            * Refer to step (1) in “1.1 To Obtain a Darker Image”.
    After setting the value, print and check the image quality.
    If further image quality adjustment is necessary, go to the next step.
(3) Check the life of the consumables (particularly the drum and transfer belt unit) and replace them, if
    necessary.
    • When replacing any consumable, use steps (a) to (b).
         (a) Enter the PM support mode. Reset the counter corresponding to the replaced consumable to “0.”
            * For further information regarding the PM support mode, refer to the Service Manual.
         (b) Perform automatic calibration.
            * For further information regarding the procedures, refer to procedure (1) in 1.1 To Obtain a Darker
              Image.
    * After replacing any consumable, remember to reset the counter corresponding to it to “0.” Otherwise, it
      may cause a loss in MFP performance, including degradation in the image quality and a reduction in the
      life of the consumables.
 Remarks
• Enter the value mentioned in the procedures or one within the recommended value range for the adjustment.
 Otherwise, it may cause a loss in MFP performance, including slowdown in the copying or printing speed.
• When replacing any consumable, refer to the relevant information in the Service Manual.
 The text and background are misaligned or out                     Text is aligned with the background and a clear
 of registration.                                                  copy/print image is obtained.
 Explanation
Colors of text or a thin line are sometimes printed out of alignment. Perform color registration control, in order
to print or copy without out-of-registration colors.
 Procedures
* The service technician must perform the adjustment in accordance with the procedure below.
* This adjustment is intended to correct misaligned colors due to differences between the paper feeding speed and
 rotating speed of the transfer belt. Therefore, it will be effective, only if colors are misaligned in the paper
 feeding direction (or the secondary scanning direction). This adjustment cannot improve misaligned colors in
 the direction perpendicular to paper feeding (or primary scanning) or in the secondary scanning direction
 periodically (partially at regular intervals). Refer to “Troubleshooting for the Image 1) Color deviation” in the
 Service Manual.
(2) Select [05 ADJUSTMENT MODE], select code [4719], and then press the [START] button.
    • Registration control will be forcibly performed.
(2) Load the thick papers in the drawer. (Paper weight: 106 to 256 g/m² / 29 to 80 lbs (Cover) / 90 to 140 lbs
    (Index))
(3) Select the paper type of the thick paper loaded in the drawer.
(4) Select [05 ADJUSTMENT MODE]. Select code [4719], and then press the [START] button.
    • Registration control will be forcibly performed.
(6) Check the first page of the printed test print pattern to identify a pattern for the out-of-registration colors.
    * There are 2 patterns for the out-of-registration colors. Check which pattern the out-of-registration colors to
      adjust on the body are included.
                                                     Patch eliminated
                                                     trailing edge
                Page number
                                                                                             rotating speed
                                                    Patch eliminated at
                                                    the leading edge
                                                                                             rotating speed
                                Paper feeding direction
(6) Finely adjust the rotating speed of the fuser motor, in accordance with a pattern for the out-of-registration colors.
          •Use steps (a) to (b) to perform the adjustment.
              (a) Select code [4529]. Finely adjust the rotating speed of the fuser motor.
             • Adjust the values in accordance with a pattern for the out-of-registration colors as shown in the table
             below.
            Pattern for
              out-of-                                                                                         Acceptable
                                    [05] code        Subcode                 Recommended value                                    Default
           registration                                                                                       value range
              colors
                                                                                    123 to 127
                    Pattern A                                              (Set a value smaller than the
                                                                                   current value)
                                      05-4529               4                                                    0 to 255            128
                                                                                    129 to 133
                    Pattern B                                               (Set a value larger than the
                                                                                   current value)
         (b) Select code [104], and then press [TEST PRINT]. Check all the patches on the second page of the
             printed test print pattern to check whether the misaligned colors have been improved.
 Remarks
• Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss
 in MFP performance, including degradation in the image quality.
• Out-of-registration colors cannot always be perfectly corrected; this depends on the type of text or lines to print.
• Also, refer to the relevant information in the Service Manual for further information regarding color registration
 control procedures.
 Explanation
The printing positions on the front and back sides of business cards may deviate. The amount of this deviation
can be reduced with image position or image distortion adjustment.
 Procedures
* The service technicians must perform all adjustments in accordance with the procedures below.
(1) Overview of adjustment
   The adjustment is divided into 3 major categories noted below. The points for each adjustment are as follows:
       (a) Image position adjustment: Adjust values as closely as you can to the target value (+/-0).
           (To make printing positions as precise as possible)
       (b) Image distortion adjustment: Adjust the image distortion that is not susceptible to the self-diagnostic
           codes by using the hardware.
           (To make printing positions as precise as possible)
       (c) Fine image positions adjustment: Adjust the image positions finely to place the images on both sides in
          their optimal positions.
                                                                       Adjustment                       Adjustment
                             Items                          Chart                          Chart
                                                                        Tolerance                        Tolerance
           [A] Reproduction ratio of the primary
                                                           05-98*1     200 ± 0.5 mm      05-315 *1      4.2 ± 0.5 mm
           scanning direction
           [B] Primary scanning data writing start
                                                                       52 ± 0.5 mm                      4.2 ± 0.5 mm
           position
           [C] Reproduction ratio of the secondary
           scanning direction (Fine adjustment of           05-98      200 ± 0.5 mm      05-315 *2      4.2 ± 0.5 mm
           transfer belt motor rotation speed)
           [D] Secondary scanning data writing start
                                                                       52 ± 0.5 mm                      4.2 ± 0.5 mm
           position
           [E] Primary scanning data writing start
                                                                       52 ± 0.5 mm                      4.2 ± 0.5 mm
           position at duplexing
                                                             05-3                        05-316 *2
           [F] Secondary scanning data writing start
                                                                       52 ± 0.5 mm                      4.2 ± 0.5 mm
           position at duplexing
         *1: e-STUDIO2505AC/3005AC/3505AC/4505AC/5005AC only
         *2: Use this chart to adjust the void width match.
    e-STUDIO2000AC/2500AC
   Since this adjustment changes the scaling of image data, use the printed image output in the normal mode or
   the print sample shown in "(3)-(b) Image distortion adjustment" on next page for the adjustment. Do not use
   the printed image output in [05 ADJUSTMENT MODE] (grid pattern, etc.) since the image processing is not
   executed for the reproduction ratio adjustment.
              Code          Function                                        Remarks
                                             The larger the value is, the larger the reproduction ratio in the
                                             primary scanning direction becomes.
               7001        PRT(*1)/FAX
                                             (0.1%/step)
                                             Acceptable values: 0 to 255 (Default: 128)
       *1: PRT supports only printing for Scan to Box (a binary format image). This adjustment is not available
       for 600dpi or 600x1200dpi printing.
           Make a test copy and compare the image obtained with the current settings; if necessary, make
           adjustments according to the following procedure:
              Notes:
            • Since the reproduction ratio may vary due to expansion and contraction of the paper immediately
              after the image is printed out, it is recommended to measure its dimension after at least 3
              minutes have passed.
            • This adjustment may cause image troubles such as moire, disappearance or breaking of thin
              lines on the printed image. Therefore check if there is no such image trouble while you are
              performing the adjustment.
       <Procedure>
           (1) Select [05 ADJUSTMENT MODE].
           (2) Key in a code and press the [START] button.
           (3) Key in the adjustment value. (To correct a value, press [CLEAR])
           (4) Press [OK] to store the value. -> The equipment goes back to the
               ready state.
           (5) Make a test copy and check the image copied. To check the printed image, turn off the power
               and then back on, and then print the image. If the image is not in the desired reproduction ratio,
               repeat steps (2) to (4).
    e-STUDIO2505AC/3005AC/3505AC/4505AC/5005AC
            [05] Code        Function                                          Remarks
                                             The larger the value is, the larger the reproduction ratio in the
             05-4001         PRT/FAX         primary scanning direction becomes. (0.1%/step)
                                             Acceptable values: 0 to 255 (Default: 128)
           Perform adjustments according to the following procedure while checking the chart output by [05
           Adjustment Mode].
              Notes:
            • Since the reproduction ratio may vary due to expansion and contraction of paper immediately
              after the image is printed out, it is recommended to measure its dimension after at least 3 minutes
              have passed.
            • Use the second drawer, A3/LD.
            • Make sure the first line of the grid pattern is printed out since the line is occasionally vanished.
           <Procedure>
            (1) Select [05 ADJUSTMENT MODE].
            (2) Key in a code and press the [START] button.
            (3) Key in the adjustment value. (To correct a value, press [CLEAR].)
            (4) Press [OK] to store the value. → The equipment goes back to the ready state.
            (5) Check the chart.
            If the image is not in the desired reproduction ratio, repeat steps (2) to (4).
                                       ③15mm                                         ⑦15mm
                       Front side
                           ④15mm                                                          ⑧15mm
                                                     Center position
                                             (top-bottom and left-right symmetric)
                           ②15mm                                                          ⑥15mm
                       Rear side
                                       ①15mm                                         ⑤15mm
   • Example of phenomenon
     The image on the trailing edge is tilted as shown below in the simplex mode.
Front side
Rear side
     When this tilted image is printed in the duplex mode, image positions on the front and back sides become as
     shown below.
Front side
Back side
   • Adjustment method
    e-STUDIO2000AC/2500AC
     Loosen the 2 screws [2] on the fuser unit guide rail (front). Remove 1 screw [3].
     Change its position to the adjustment hole [4] and move the fuser unit guide rail (front) [2] up or down.
      (Guideline of the movement: One scale)
     * There is a 0.5mm wide scale at the position indicated by [5].
Move the fuser unit guide rail [1] upward Move the fuser unit guide rail [1] downward
                                                                                                                            Before
                                                                                                                            adjustment
                                                                                                                            After
                                                                                                                            adjustment
 The reproduction ratio in the secondary scanning             The reproduction ratio in the secondary scanning
 direction on the front side becomes large.                   direction on the front side becomes small.
    e-STUDIO2505AC/3005AC/3505AC/4505AC/5005AC
     Loosen 1 screw [1] on the fuser unit front guide rail. Remove 1 screw [2] and replace it in the adjustment
     hole [3]. Move the fuser unit front guide rail up or down (one step).
     * 0.5-mm scale [4]
Move the fuser unit guide rail [1] upward Move the fuser unit guide rail [1] downward
                                                                                                                            Before
                                                                                                                            adjustment
                                                                                                                            After
                                                                                                                            adjustment
 The reproduction ratio in the secondary scanning             The reproduction ratio in the secondary scanning
 direction on the front side becomes large.                   direction on the front side becomes small.
Front side
Rear side
     When this tilted image is printed in the duplex mode, image positions on the front and back sides become as
     shown below.
Front side
Back side
     When a printed image at the leading edge of paper is tilted as shown below, correct this by the following
     steps.
e-STUDIO2000AC/2500AC
Adjustment method
       Tilting the developer unit.
<Adjustment procedure>
(1) Remove the waste toner box, toner box, developer unit, cleaner unit, left cover and receiving tray from the
       MFP.
   Refer to the following pages of the Service Manual
          (a) 4.6.1 Waste toner box
          (b) 4.6.2 Developer unit
          (c) 4.6.8 Cleaner unit
          (d) 4.1.2 Left cover
          (e) 4.1.3 Recieving tray
(3) Release the latches [1], and then take off the toner cover
[2].
Note:
   When taking off the toner cover, remove the cooling duct
   [3], and toner stays [4] and [5].
Remark:
       Up to 1 mm is adjustable (0.5 mm for the right and left).
Move the frame [2] to the right Move the frame [2] to the left
                                                                                                                            Before
                                                                                                                            adjustment
                                                                                                                            After
                                                                                                                            adjustment
e-STUDIO2505AC/3005AC/3505AC/4505AC/5005AC
Procedure
Tilt the laser optical unit (LSU).
<Procedure>
Check that paper is not skewed in the side guides of the drawer in advance.
(1) Output a grid pattern of A3/LD size and check the tilted volume of an image (the value of “A-B”).
(2) Remove 5 screws and take off the left cover (Refer to “4.1.2. Left cover” in the Service Manual).
Notes:
Be sure to check the scale positions before carrying
out the adjustment. Take a memo of the scale
positions where the LSU holder [4] and the frame [5]
ones are aligned.
Fig. C: The scale position is aligned at the center. Fig.
D: The scale position is aligned at the fifth one on the
front side from the center.
(6)Select the closest value to the tilted volume "A-B" from the following table and check the scales of the frame
 and the LSU holder to be aligned.
Center 0 0 0 0
The scale positions from the first to the eighth on the front and rear sides
(7)Make sure of the scale position to be aligned by referring to the table. Align the scale of LSU holder to that for
 the frame.
Notes:
This describes the adjustment procedure in the standard operation; however, adjustment of tilting in the laser
optical unit has sometimes been carried out on the manufacturing line and the scales of the frame and the LSU
holder may be aligned at a position other than the center.
In this case, move the scale position only by the required volume to be tilted since the ones of the frame and the
LSU holder have aligned.
Obtain the value in accordance with the following condition when moving the scale.
    A3 size paper (Width: 297 mm): The value of A-B becomes smaller by approx. 0.14 mm per 1 scale.
    LD size paper (Width: 279 mm): The value of A-B becomes smaller by approx. 0.13 mm per 1 scale.
    If the value of A-B is plus, use the scale in the front side.
    If the value of A-B is minus, use the scale in the rear side.
(10) Output a grid pattern of A3/LD size and check whether image tilting has occurred or not. If this problem still
 persists, return to step (3) and perform the adjustment again.
The center of the image may have a deviation. Suppress the deviation in the center.
Images may slightly deviate from the correct writing start position; however, the entire amount of the deviation
between image positions on both sides is reduced.
2.1 To Copy Text Clearly (To eliminate faint, smudged or blurred text)
 When a light print image is copied, the text                      The graphic image and text look darker and
 looks blurred.                                                    sharper.
 Explanation
Perform image processing, in order to obtain a sharp and dark copy image when copying an original containing
light text and graphic images, or a light copy image when copying an original containing a highly colored text
and copy image.
 Procedures
* The procedure to use varies, depending on whether to adjust the copy image quality in the Black mode, Full
 color mode. Refer to the procedure corresponding to the particular user’s request.
(1) Press [BASIC] on the Control Panel. Press [ ] to increase the copy density.
    After increasing the copy density, copy and check the copy image quality.
    With the copy density set to the maximum, if further image quality adjustments are still necessary, the
    service technician must use the following procedures.
(2) Select [05 ADJUSTMENT MODE]. Increase the values for the codes [7114] to [7116], [7123] to [7125],
    [7134], [7137], [7138] and [7141] to make the copied text darker.
   •The code to use varies according to the original mode (Text/Photo, Text, Photo, User custom, Gray Scale) or
    the manual/automatic density setting. Select the [05] code for the mode in which the image quality is to be
    changed, and set “128” or more for the setting value.
   After the setting value is changed, make a copy and confirm the image quality.
   If you need additional image quality adjustment, perform the next procedure.
    After increasing the sharpness intensity, copy and check the copy image quality.
    With the sharpness intensity set to the maximum, if further image quality adjustments are still necessary, the
    service technician must use the following procedures.
e-STUDIO2000AC/2500AC/2505AC/3005AC/3505AC/4505AC/5005AC (Ver00)      © 2016 TOSHIBA TEC CORPORATION All rights reserved
                                                           2-2
                                                                                             2. Copier-specific Adjustments
(4) Select [05 ADJUSTMENT MODE]. Increase the values for codes [7056] to [7058] and [7061], [7249] to
    make the copied text darker (sharpness level increases).
    • The code to use varies according to the original mode (Text/Photo, Text or Photo). Adjust the value for
      [05] code corresponding to the original mode in which you would like to improve the image quality and set
      values larger than “128”.
                                                             Recommended               Acceptable
  Color mode          Original mode          [05]code                                                       Default
                                                                 value                 value range
                     Text/Photo               05-7056
                     Text                     05-7057
                                                             Set a value larger
       Black         Photo                    05-7058                                    0 to 255             128
                                                                 than 128.
                     Image smoothing          05-7061
                     User custom              05-7249
    * The smaller the setting value, the lower the sharpness becomes, while the larger the setting value, the
      higher the sharpness becomes.
    (For example, if the intensity of the center value is reduced by "25" (smaller), the value of each step of the
      indicator will also be correspondingly decreased.) However, the adjustment value range which affects the
      sharpness is within +/-100; this is the total of the setting value for the [05] code and that for the indicator.
      For example, when "103" (reduced by 25 from the default value) is set for the [05] code as shown in the
      figure below, the variation on the software side by the indicator is within -3 steps. Even if -4 steps are
      applied, the image quality will not change.
                                  -4    -3      -2    -1     0     +1    +2       +3    +4
                           Soft                                                               Sharp
| | | | | | | | |
                    Default:      -100 -75     -50    -25    0     +25 +50 +75 +100                     Assigned adjustment
                                                                                                        value of sharpness
      Setting value "103":        -100 -100 -75       -50    -25   0     +25 +50 +75
    After selecting the Text mode, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(5) Press [BASIC] on the Control Panel. Select “TEXT” from among the original mode options.
    * To have “TEXT” selected from among the original mode options by default, refer to 2.18 To Program
      Frequently Used Copy Settings (To Use Custom Mode).
    After selecting the Text mode, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(6) Select [05 ADJUSTMENT MODE]. Decrease the values for codes [7097], [7098] and [7252] to make the
    text darker (improving faint text or thin lines).
                                                  Recommended                 Acceptable
      Original mode              [05] code                                                            Default
                                                      value                   value range
         Text / Photo             05-7097
                                                  Set a value smaller
            Text                  05-7098                                         0 to 4                  2
                                                        than 2.
         User custom              05-7252
    * Set the value in increments of approximately 1, while checking the copy image until the optimum value is
      obtained.
<Note> Note that if a too small setting value is set, the life of the supplies may be shortened.
    After increasing the copy density, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(7) Select [05 ADJUSTMENT MODE]. Change the values for codes [7190] to [7192] and [7956] to adjust the
    gamma balance in each of medium- and high-density areas.
                                                            Recommended               Acceptable
      Original mode         [05] code        Subcode                                                      Default
                                                                value                 value range
        Text / Photo         05-7190
            Text             05-7191                        Set a value larger
                                                1/2                                        0 to 255           128
           Photo             05-7192                            than 128.
      Image smoothing        05-7956
    * Set the value in increments of approximately 20, while checking the copy image until the optimum value is
      obtained.
      (Please be careful because the gradation (or density) of the medium-density area may exceed that of the
      high-density area, depending on the set value.)
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted. The density of light text or a graphic image will vary, if the medium-
      or high-density area is mainly adjusted. Setting “0” for the subcode allows you to adjust the low-density
      area. But it will not affect the light text or graphic images. Therefore, never change the value for the low-
      density area.
           Subcode           Area where the density is adjusted
                1                    Medium-density area
                2                    High-density area
    After changing the value, make a copy and check the image quality.
    If further image quality adjustments are necessary, reset all the values changed in steps (1) to (6) above to
    the default ones and then follow the next step.
(8) Select [08 SETTING MODE]. Change the value for subcode “3” of code [2548] to make the outline of the
    copied text thicker and clearer, or thinner and finer.
    * This adjustment can be made applicable to all colors by selecting the corresponding subcode. In this step,
      however, change the setting value only for subcode “3” to adjust the image quality for the black mode.
                                                                                                  Acceptable
        Setting item           [08] code      Subcode              Recommended value                                  Default
                                                                                                  range value
                                                              To make the outline of text
                                                              thicker and clearer:
     Potential on printing                                    Set a value smaller than 5.
    white text / Correction       08-2548         3                                                   0 to 12                6
          setting (K)                                         To make the outline of text
                                                              thinner and finer:
                                                              Set a value larger than 5.
    * To check the amount changed with this setting, it is recommended to set the value at “3” or “4” first to
      decrease it, and then to set the value at “8” or “9” first to increase it. Then check the copy image and
      increase or decrease the value further so that the image will be adjusted finely.
    If further adjustments are necessary after performing step (8), you can repeat steps (1) to (7). When
    repeating these steps, however, adjust the value while checking the copy image carefully.
(9) Select [08 SETTING MODE]. Change the value for subcode “3” or “7” of code [2620].
                                                                                                  Acceptable
           Original mode              [08]code Subcode              Recommended value                                 Default
                                                                                                  range value
    Text/Photo
    Text
    Photo              Plain paper     08-2620         3
    Image
                                                                   Set a value larger than 15
    moothing
                                                                   to make the text darker           8 to 36             15
    Text/Photo                                                     and clearer.
    Text
    Photo                 Thick        08-2620         7
    Image
    moothing
 Remarks
• Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss
 in MFP performance, including degradation in the image quality and a reduction in the life of the consumables.
• If you perform only step (8) above (changing the setting value of subcode “3” of code [08-2548]) as an image
 quality adjustment for the black mode, it may cause an extra increase or decrease in the amount of K toner used
 compared with that for the other colors, or it may create a difference in the reproducibility of halftones.
2.1.2 To Adjust the Copy Image Quality in the Full Color Mode
* The setting value for the Full color mode shall be applied also when the original is judged as the full color
 image in the Auto color mode.
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use procedures (1), (3) and (7).
* Only the service technician must use procedures (2), (4), (5), (6), (8) and (9).
(1) Press [BASIC] on the Control Panel. Press [ ] to increase the copy density.
    After increasing the copy density, copy and check the copy image quality.
    With the copy density set to the maximum, if further image quality adjustments are still necessary, the
    service technician must use the following procedures
(2) Select [05 ADJUSTMENT MODE]. Increase the values for codes [7713 to 7726] to strengthen the copy
    density of text.
     • The code to be set varies depending on the original mode setting (Text/photo, Text, Printed image, Photo
       (developing paper), Map, User custom, Red seal color) or the manual/automatic density setting. Select the
       [05] code for the mode in which the image quality is to be changed, and set “128” or more for the setting
     value.
   Color                                                                Recommended            Acceptable
                 Target        Original mode           [05]code                                                    Default
   mode                                                                     value              value range
                             Text/Photo                 05-7713
                             Text                       05-7714
                 Manual      Printed image              05-7715
                 density                                                Set a value larger
                             Photo                      05-7716                                   0 to 255           128
                                                                            than 128.
                             Map                        05-7717
                             User custom                05-7718
                             Red seal color             05-7719
  Full color
                             Text/Photo                 05-7720
                             Text                       05-7721
                             Printed image              05-7722
                Automatic                                               Set a value larger
                             Photo                      05-7723                                   0 to 255           128
                 density                                                    than 128.
                             Map                        05-7724
                             User custom                05-7725
                             Red seal color             05-7726
   * When the manual setting value of the manual density is altered while it is set in the BASIC menu on the
     control panel, the density in the steps in all the indicators including the center value is also changed. One
     step in the indicator corresponds to “20” of the setting value in [05] code.
   After increasing the copy density, copy and check the copy image quality.
   If further image quality adjustments are still necessary, use the next procedure.
    After increasing the sharpness intensity, copy and check the copy image quality.
    With the sharpness intensity set to the maximum, if further image quality adjustments are still necessary, the
    service technician must use the following procedures.
(4) Select [05 ADJUSTMENT MODE]. Increase the values for codes [7794 to 7800] to strengthen the copy
    density of text (or increase the sharpness intensity).
    • The code to use varies according to the original mode (Text/Photo, Text, Printed image, Photo or Map).
      Adjust the value for [05] code corresponding to the original mode in which you would like to improve the
      image quality and set values larger than “128” for codes 05-7794 to 7800.
      Original mode [05] code              Recommended value           Acceptable value range               Default
        Text/Photo          05-7796
            Text            05-7797
       Printed image        05-7798
           Photo            05-7799       Set a value larger than 128.          0 to 255                       128
            Map             05-7800
        User custom         05-7795
       Red seal color       05-7794
    * Setting “0” provides the softest image, while setting “255” provides the sharpest image.
      Changing the values for these codes will change the sharpness intensity, when the “Sharpness” indicator in
      the “IMAGE” menu is set to the center. Remember that 1 step of the indicator will increase or decrease the
      sharpness intensity by 25. If the sharpness intensity of the center value is changed, each step of the indicator
      will be changed accordingly. (For instance, if the center value is increased by 25 (sharper), the value of each
      step of the indicator will also be increased by 25 (sharper).)
      However, the range of adjustment values that is valid for sharpness level change is from -100 to +100 of
      the total of the setting value of the [05] code and that of the indicator. For instance, if the setting value of
      the [05] code is “103” (-25 from the default value), the limit of the steps in the soft side of the indicator is
      “-3”. If the step is set at “-4”, the image quality will not be changed.
    * The adjustment value range that has an effect on the sharpness is within +/- 100; this is the total of the
      setting value for the [05] code and that for the indicator. For example, when "103" (reduced by 25 from the
      default value) is set for the [05] code as shown in the figure below, the variation on the software side by the
      indicator is within -3 steps. Even if -4 steps are applied, the image quality will not change.
                               -4   -3       -2    -1     0      +1   +2        +3     +4
                        Soft                                                                  Sharp
| | | | | | | | |
                Default:       -100 -75     -50    -25    0      +25 +50 +75 +100                      Assigned adjustment
                                                                                                       value of sharpness
 Setting value "103":          -100 -100 -75       -50    -25     0   +25 +50 +75
    After increasing the sharpness intensity, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(5) Select [05 ADJUSTMENT MODE] and change the values of the codes [7840], [7841] and [7842] to adjust
    the reproduction level of the Text/Photo, User custom and Red seal color original modes.
    The larger the value is, the clearer the reproduction of thin text will become.
     Original mode [05] Code Recommended value Acceptable value range                                            Default
        Text/Photo           05-7840
        User custom            05-7841      Set a value larger than 5.                      0 to 9                   0
       Red seal color          05-7842
    * Adjustment for the User custom setting is enabled in the Text/Photo mode base only.
    * Set the value in increments of 1, while checking the copy image until the optimum value is obtained.
      Set the value to “5” and check the copy image quality. If further image quality adjustment is necessary, set
      the value to “6”. If further adjustment is necessary, increase the value step by step.
    * If a value becomes too much larger, a photo area may become coarse.
    * If “4” to “1” is set for the setting value, the text may become blurred.
    * For the User custom mode, refer to “2.18 To Program Frequently Used Copy Settings (To Use Custom
      Mode)”.
    * The setting content of the default value “0” is the same as that for the value “5”.
(6) Select [05 ADJUSTMENT MODE]. Change the values for codes [7889 to 7892] to adjust the maximum
    color density of the text.
       Color to                                                    Acceptable
                    [05] code       Recommended value                              Default
         adjust                                                    value range
           Y
                      05-7889
       (Yellow)
                                  Set a value larger than 5 to
           M
                      05-7890     increase the density.
      (Magenta)
                                                                     0 to 10            5
           C
                      05-7891     Set a value smaller than 5 to
        (Cyan)
                                  decrease the density.
           K
                      05-7892
        (Black)
    * Set the value in increments of 1, while checking the copy image until the optimum value is obtained.
    * This adjustment will be effective, only if the [TEXT/PHOTO] or [TEXT] mode is selected or the
      [CUSTOM] mode based on the [TEXT/PHOTO] or [TEXT] mode is selected from among the original
      mode options. Only the text areas (portions that are recognized as text) are adjusted in the
      [TEXT/PHOTO] mode and [TEXT] mode. Only K color can be adjusted in the [TEXT] mode.
    After adjusting the maximum color density of the text, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(7) Press [BASIC] on the Control Panel. Select “TEXT” from among the original mode options.
    * To have “TEXT” selected from among the original mode options by default, refer to 2.18 To Program
      Frequently Used Copy Settings (To Use Custom Mode).
    After changing the value, make a copy and check the image quality.
    If further image quality adjustments are necessary, reset all the values changed in steps (1) to (6) above to
    the default one and then follow the next step.
(8) Select [08 SETTING MODE]. Change the value for code [2548] to make the outline of the copied text
    thicker and clearer, or thinner and finer.
    * This adjustment can be made applicable to all colors by selecting the corresponding subcode. However, it
      is recommended to enter the same setting value for all the subcodes unless otherwise required.
                                                                                                   Acceptable
          Setting item             [08] code     Subcode            Recommended value                                  Default
                                                                                                   range value
                               Y                        0          To make the outline of text
                                                                   thicker and clearer:
    Potential on printing      M                        1          Set a value smaller than 5.
        white text /                08-2548                                                            0 to 12                6
     Correction setting        C                        2          To make the outline of text
                                                                   thinner and finer:
                               K                        3          Set a value larger than 5.
    * To check the amount changed with this setting, it is recommended to set the value at “3” or “4” first to
      decrease it, and then to set the value at “8” or “9” first to increase it. Then check the copy image and
      increase or decrease the value further so that the image will be adjusted finely.
    If further adjustments are necessary after performing step (8), you can repeat steps (1) to (7).
    When repeating these steps, however, adjust the value while checking the copy image carefully.
(9) Select [08 SETTING MODE]. Change the value for subcode “0” to “7” of code [2620].
    Color to      Original                                                                        Acceptable
                                   [08]code      Subcode           Recommended value                                  Default
     adjust        mode                                                                           range value
        Y                                           0
        M                                           1
                 Plain paper       08-2620
        C                                           2
                                                               Set a value larger than 15
        K                                           3
                                                               to make the text darker and              8-36              15
        Y                                           4          clearer.
        M                                           5
                 Thick             08-2620
        C                                           6
        K                                           7
 Remarks
• Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss
 in MFP performance, including degradation in the image quality and a reduction in the life of the consumables.
• If you perform only step (8) above (changing the setting value of code [08-2548]) as an image quality
 adjustment for a certain color, it may cause an extra increase or decrease in the amount of the toner used for this
 color compared with that for the other colors, or it may create a difference in the reproducibility of halftones.
Copy Copy
 The copy image looks yellowish, compared                          The color balance of the copy image is closely
 with the original.                                                matched with that of the original.
 Explanation
Depending on the color balance of the original, the copy image sometimes looks different from the original. To
make the colors on the copy the same as those in the original, perform image quality control, automatic
calibration, color adjustment (color balance, RGB and hue adjustments), and color density adjustment.
 Procedures
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use procedures (1) to (3).
* Only the service technician must use procedure (4) and (5).
          * As a result of the above steps, the copy image quality will be corrected in the Full color mode and
            the Black and White mode simultaneously.
    After performing automatic calibration, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(2) Perform hue adjustment to adjust the tint of the color in the color area to change.
    • Use steps (a) through (d) to perform the adjustment.
         (a) Press [IMAGE] on the Control Panel.
         (b) Press [HUE].
         (c) Press [+] or [-] on the indicator of the color to adjust.
            * Pressing [+] or [-] on the indicator changes the hue as shown below.
              (For instance, press [+] at R (Red). Then the tint of R (Red) is closely matched with that of Y (Yellow). Press [-] at
              R (Red). Then the tint of R (Red) will be closely matched with that of M (Magenta).
    After adjusting the hue, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(3) Perform color balance adjustment or RGB adjustment to adjust the tint of colors in general.
    • Use steps (a) through (d) to perform the adjustment.
         (a) Press [IMAGE] on the Control Panel.
         (b)Press [COLOR BALANCE] to adjust the color balance by changing the amount of toner (C, M, Y
            and K) or [RGB ADJUSTMENT] to adjust the color balance by changing the intensity of R, G and B.
         (c) Press [+] to enhance the tint of the color or [-] to decrease it.
            * After selecting the color balance by changing the amount of toner (C, M, Y and K), press
              [DETAIL]. The tint of the color can be adjusted according to density area (low-, medium- or high-
              density area).
         (d) Press [ENTER].
    After adjusting the tint of the colors, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(4) Select [05 ADJUSTMENT MODE]. Change the setting values for codes [7665] to [7671] to adjust the hue.
* Each setting value for the Text/Photo, Text and Photo (developing paper) original mode is reflected to the
  quality of the image in the Full color and Auto color modes.
* The sub code varies according to the area where the hue is adjusted. Set the sub code for the area to be adjusted
  by referring to the following below.
(5) Select [05 ADJUSTMENT MODE]. Change the values for codes [7960 to 7987] to adjust the color density.
       Color to                                                                    Acceptable
                  Original mode [05] code Subcode Recommended value                                Default
         adjust                                                                    value range
                    Text/Photo    05-7960   0/1/2
                        Text      05-7961   0/1/2
                   Printed image  05-7962   0/1/2
           Y
                       Photo      05-7963   0/1/2
       (Yellow)
                        Map       05-7964   0/1/2
                    User custom   05-7980   0/1/2
                   Red seal color 05-7984   0/1/2
                    Text/Photo    05-7965   0/1/2
                        Text      05-7966   0/1/2
                   Printed image  05-7967   0/1/2
           M
                       Photo      05-7968   0/1/2
      (Magenta)
                        Map       05-7969   0/1/2
                    User custom   05-7981   0/1/2   Set a value larger than 128
                   Red seal color 05-7985   0/1/2   to increase the density.
                                                                                      0 to 255        128
                    Text/Photo    05-7970   0/1/2
                                                    Set a value smaller than 128
                        Text      05-7971   0/1/2   to decrease the density.
                   Printed image  05-7972   0/1/2
           C
                       Photo      05-7973   0/1/2
        (Cyan)
                        Map       05-7974   0/1/2
                    User custom   05-7982   0/1/2
                   Red seal color 05-7986   0/1/2
                    Text/Photo    05-7975   0/1/2
                        Text      05-7976   0/1/2
                   Printed image  05-7977   0/1/2
           K
                       Photo      05-7978   0/1/2
        (Black)
                        Map       05-7979   0/1/2
                    User custom   05-7983   0/1/2
                   Red seal color 05-7987   0/1/2
    * Set the value in increments of approximately 10, while checking the copy image until the optimum value is
      obtained.
    * The value for the code corresponding to the original mode (Text/Photo, Text, or Printed image) will affect
      the copy image quality in the Full color mode and the Auto color mode.
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted.
          Subcode            Area where the density is adjusted
               0                        Low-density area
               1                        Medium-density area
               2                        High-density area
 Caution after the adjustment
The adjustment may possibly cause offset failure, particularly when the highly colored original is copied in the
Photo mode. Therefore, carefully perform the adjustment, while checking the copy image.
 Remarks
Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss in
MFP performance, including degradation in the image quality and a reduction in the life of the consumables.
 Another color (M) is blended in the gray area.                     No undesired color is blended. A clear copy
                                                                    image is obtained.
 Explanation
When an original containing gray is copied, another color may be blended in the gray area. Perform image quality
control, automatic calibration, color adjustment (color balance adjustment or RGB adjustment) and color density
adjustment, in order to avoid this problem (or to obtain an achromatic color, for instance).
 Procedures
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use procedures (1) and (2).
* Only the service technician must use procedure (3).
    * [ADMIN] is selected from among the [CALIBRATION DISPLAY LEVEL] options by default. In other
      words, an administrator is authorized to operate automatic calibration. But the [USER] option can also be
      selected to allow the user to operate it. Refer to the MFP Management Guide for further information
      regarding how to select the [CALIBRATION DISPLAY LEVEL] option.
    After performing automatic calibration, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(2) Perform color balance adjustment or RGB adjustment to adjust the tint of colors in general.
    * For further information regarding the adjustment procedures, refer to procedure (3) in 2.2 To Closely
      Match the Color Balance of the Original.
    After adjusting the tint of colors, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(3) Select the User custom mode and select [05 ADJUSTMENT MODE]. Change the setting value for the code
    [7690] to decrease the magenta level in gray.
    *For the User custom mode, refer to the procedures in "2.18.2 To Adjust Custom Mode Settings in Full
    Color Mode".
(4) Select [05 ADJUSTMENT MODE]. Change the values for codes [7960 to 7987] to adjust the color density.
       Color to                                                                    Acceptable
                  Original mode [05] code Subcode Recommended value                                Default
         adjust                                                                    value range
                    Text/Photo    05-7960   0/1/2
                        Text      05-7961   0/1/2
                   Printed image  05-7962   0/1/2
           Y
                       Photo      05-7963   0/1/2
       (Yellow)
                        Map       05-7964   0/1/2
                    User custom   05-7980   0/1/2
                   Red seal color 05-7984   0/1/2
                    Text/Photo    05-7965   0/1/2
                        Text      05-7966   0/1/2
                   Printed image  05-7967   0/1/2
           M
                       Photo      05-7968   0/1/2
      (Magenta)
                        Map       05-7969   0/1/2
                    User custom   05-7981   0/1/2   Set a value larger than 128
                   Red seal color 05-7985   0/1/2   to increase the density.
                                                                                      0 to 255        128
                    Text/Photo    05-7970   0/1/2
                                                    Set a value smaller than 128
                        Text      05-7971   0/1/2   to decrease the density.
                   Printed image  05-7972   0/1/2
           C
                       Photo      05-7973   0/1/2
        (Cyan)
                        Map       05-7974   0/1/2
                    User custom   05-7982   0/1/2
                   Red seal color 05-7986   0/1/2
                    Text/Photo    05-7975   0/1/2
                        Text      05-7976   0/1/2
                   Printed image  05-7977   0/1/2
           K
                       Photo      05-7978   0/1/2
        (Black)
                        Map       05-7979   0/1/2
                    User custom   05-7983   0/1/2
                   Red seal color 05-7987   0/1/2
    * Set the value in increments of approximately 10, while checking the copy image until the optimum value is obtained.
    * The value for the code corresponding to the original mode (Text/Photo, Text, or Printed image) will affect
      the copy image quality in the Full color mode and the Auto color mode.
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted.
           Subcode           Area where the density is adjusted
               0                        Low-density area
               1                        Medium-density area
               2                        High-density area
e-STUDIO2000AC/2500AC/2505AC/3005AC/3505AC/4505AC/5005AC (Ver00)     © 2016 TOSHIBA TEC CORPORATION All rights reserved
                                                          2-19
2. Copier-specific Adjustments
 Remarks
Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss in
MFP performance, including degradation in the image quality and a reduction in the life of the consumables.
 When a copy is made without any adjustments,                        The copy image is obtained in vivid colors.
 the vividness is insufficient on the copy image.
 Explanation
When a copy is made without any adjustments, the vividness may be insufficient on the copy image. Perform
saturation adjustment, color adjustment (color balance adjustment or RGB adjustment), and color density
adjustment, in order to obtain a copy image in vivid colors.
 Procedures
* You can start with any of the procedures other than (5). But it is recommended to perform the procedures in
 order, as listed below. You can use one procedure in conjunction with another. But if this changes the image
 quality more than required or loses the effectiveness of the adjustment, restore the settings made in the
 previously used procedure to the original ones. Then use other procedures.
* Both the service technician and the user can use procedures (1) to (3).
* Only the service technician must use procedure (4) and (5).
* Only if the vividness of R (Red) is still insufficient even after procedures (1) to (4) have been used, the service
 technician must use procedure (6).
(1) Press [IMAGE] on the Control Panel. Press [ONE TOUCH ADJUSTMENT].
    Press [VIVID] .
    After selecting the “Vivid” option, copy and check the copy image quality.
    When the copy image quality with the “Vivid” option is insufficient, cancel the “Vivid” option and use the
    next procedure.
    (The one-touch adjustment can be canceled by pressing [ONE TOUCH ADJUSTMENT] again.)
    After adjusting the saturation, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(3) Perform color balance adjustment or RGB adjustment to adjust the tint of colors in general.
    * For further information regarding the adjustment procedures, refer to procedure (3) in 2.2 To Closely
      Match the Color Balance of the Original.
    After adjusting the tint of colors, copy and check the copy image quality.
    If further image quality adjustments are still necessary, the service technician must use the next procedure.
(4) Select [05 ADJUSTMENT MODE]. Change the setting values for codes [7675] to [7681] to adjust the saturation.
* Each setting value for the Text/Photo, Text and Photo (developing paper) original mode is reflected to the
    quality of the image in the Full color and Auto color modes.
* The sub code varies according to the area where the hue is adjusted. Set the sub code for the area to be adjusted
    by referring to the following below.
(5) Select [05 ADJUSTMENT MODE]. Change the values for codes [7960 to 7987] to adjust the color density.
       Color to                                                                     Acceptable
                   Original mode [05] code Subcode Recommended value                                Default
         adjust                                                                     value range
                     Text/Photo    05-7960   0/1/2
                         Text      05-7961   0/1/2
                    Printed image  05-7962   0/1/2
           Y
                        Photo      05-7963   0/1/2
       (Yellow)
                         Map       05-7964   0/1/2
                     User custom   05-7980   0/1/2
                    Red seal color 05-7984   0/1/2
                     Text/Photo    05-7965   0/1/2
                         Text      05-7966   0/1/2
                    Printed image  05-7967   0/1/2
           M
                        Photo      05-7968   0/1/2
      (Magenta)
                         Map       05-7969   0/1/2
                     User custom   05-7981   0/1/2   Set a value larger than 128
                    Red seal color 05-7985   0/1/2   to increase the density.
                                                                                        0 to 255       128
                     Text/Photo    05-7970   0/1/2   Set a value smaller than 128
                         Text      05-7971   0/1/2   to decrease the density.
                    Printed image  05-7972   0/1/2
           C
                        Photo      05-7973   0/1/2
        (Cyan)
                         Map       05-7974   0/1/2
                     User custom   05-7982   0/1/2
                    Red seal color 05-7986   0/1/2
                     Text/Photo    05-7975   0/1/2
                         Text      05-7976   0/1/2
                    Printed image  05-7977   0/1/2
           K
                        Photo      05-7978   0/1/2
        (Black)
                         Map       05-7979   0/1/2
                     User custom   05-7983   0/1/2
                    Red seal color 05-7987   0/1/2
    * Set the value in increments of approximately 10, while checking the copy image until the optimum value is
      obtained.
    * The value for the code corresponding to the original mode (Text/Photo, Text, or Printed image) will affect
      the copy image quality in the Full color mode and the Auto color mode.
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted.
    After setting the values, copy and check the copy image quality.
    Only if the vividness of R (Red) is still insufficient even after all the above procedures have been used, must
    the service technician use the next procedure.
(6) Select [05 ADJUSTMENT MODE]. Change the value for code [2905] to adjust the transfer (1st transfer)
    roller bias output.
    (Adjust the offset voltage of transfer roller bias for C (Cyan) and K (Black) so as to increase the density of R
    (Red).)
    • The code to use varies depending on the paper type and color to adjust. Adjust the value for the subcode
      corresponding to the color for which you would like to improve the image quality. Set the value within a
      range of “2” to “5” to obtain the highest density of R (Red).
    <Note>        • The adjustment may possibly decrease the density of G (Green), B (Blue) and K (Black)
                    extremely. Therefore, carefully perform the adjustment, while checking the copy image.
                  • Unless this adjustment changes the density of R (Red), return the values to the default (set
                    value: 5).
                  • This adjustment may affect not only the copy image but also every image quality such as the
                    printout. Therefore, perform the adjustment, being aware that the image quality of all future
                    printouts will be changed, when printing out originals other than the one that is used for the
                    adjustment.
 Remarks
Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss in
MFP performance, including degradation in the image quality and a reduction in the life of the consumables.
2.5 To Make the Pale Area of the Original Look Darker and Sharper
                                                     (To improve the highlight reproducibility)
    The splashing area (highlight) is blurred.                        A clear copy image of the splashing area
                                                                      is obtained.
 Explanation
Perform the copy density adjustment and background adjustment, in order to make the pale area (highlight) of
the original look darker and sharper on the copy.
 Procedures
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use procedures (1) and (3).
* Only the service technician must use procedures (2), (4) and (5).
    After increasing the background density, copy and check the copy image quality.
    With the background density set to the maximum, if further image quality adjustments are still necessary, the
    service technician must use the next procedure.
(2) Select [05 ADJUSTMENT MODE]. Change the values for the following codes below to adjust the density
    level of the background.
    * The highlighted area will become highly visible, if the background density is increased.
                                                                                       Acceptable
       Color mode        Original mode [05] code Recommended value                         value               Default
                                                                                           range
                            Text/Photo       05-7656
                                Text         05-7657
                          Printed Image      05-7658
         Full color            Photo         05-7659
                                Map          05-7660
                           User custom       05-7661
                          Red seal color     05-7662
                            Text/Photo       05-7707
        Mono color              Text         05-7708
                          Printed Image                         Set 128 or larger.        0 to 255                128
                                             05-7709
                            Text/Photo       05-7710
        Twin color              Text         05-7711
                          Printed Image      05-7712
                            Text/Photo       05-7100
                                Text         05-7101
           Black          Printed Image      05-7102
                         Image smoothing     05-7105
                           User custom       05-7106
    * Set the value in increments of approximately 10, while checking the copy image until the optimum value is
      obtained.
    <Note>        “Making the highlighted area more visible (or increasing the background density)” and
                  “eliminating the background color (or decreasing the background density)” are mutually
                  contradictory. If the background color is darkened to make the highlighted area more visible,
                  the hue of the background may change.
    After adjusting the background density, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(3) Press [BASIC] on the Control Panel. Press [       ] to increase the copy density.
    After increasing the copy density, copy and check the copy image quality.
    With the copy density set to the maximum, if further image quality adjustments are still necessary, the
    service technician must use the next procedure.
(4) Select the User custom mode and select [05 ADJUSTMENT MODE]. Change the setting value for the code
    [7690] to change the reproduction level of the background.
    * For the User custom mode, refer to the procedures in “2.18.2 To Adjust Custom Mode Settings in Full Color Mode”.
      [05] Code        Setting value
       05-7690               4
(5) Select [05 ADJUSTMENT MODE]. Change the values for codes [7190 to 7193] and [7960 to 7987] to
    adjust the color density.
                                                                                   Acceptable
   Color        Color to         Original      [05]            Recommended
                                                     Subcode                          value       Default
   mode          adjust           mode        code                   value
                                                                                      range
                               Text/Photo    05-7960   0/1
                                   Text      05-7961   0/1
                              Printed image  05-7962   0/1
                    Y
                                  Photo      05-7963   0/1
                (Yellow)
                                   Map       05-7964   0/1
                               User custom   05-7980   0/1
                              Red seal color 05-7984   0/1
                               Text/Photo    05-7965   0/1
                                   Text      05-7966   0/1
                   M          Printed image  05-7967   0/1
                (Magenta          Photo      05-7968   0/1
                    )              Map       05-7969   0/1
                               User custom   05-7981   0/1    Set a value larger
  Full color                  Red seal color 05-7985   0/1    than 128 to
 Mono color                                                   increase the
 Twin color                    Text/Photo    05-7970   0/1
                                                              density.
                                   Text      05-7971   0/1
                              Printed image  05-7972   0/1                           0 to 255      128
                    C
                                  Photo      05-7973   0/1
                 (Cyan)                                       Set a value
                                   Map       05-7974   0/1    smaller than 128
                               User custom   05-7982   0/1    to decrease the
                              Red seal color 05-7986   0/1    density.
                               Text/Photo    05-7975   0/1
                                   Text      05-7976   0/1
                              Printed image  05-7977   0/1
                    K
                                  Photo      05-7978   0/1
                 (Black)
                                   Map       05-7979   0/1
                               User custom   05-7983   0/1
                              Red seal color 05-7987   0/1
                               Text/Photo    05-7190   0/1
                                   Text      05-7191   0/1
                    K
   Black                      Printed image  05-7192   0/1
                 (Black)
                                  Image
                                             05-7193   0/1
                                smoothing
    * Set the value in increments of approximately 10, while checking the copy image until the optimum value is
      obtained.
    * The value for the code corresponding to the original mode (Text/Photo, Text, or Printed image) will affect
      the copy image quality in the Full color mode and the Auto color mode.
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted. The density of the highlighted area will vary, if the low- or medium-
      density area is mainly adjusted. Setting “2” for subcode allows you to adjust the high-density area. But it
      will not affect the highlighted area. Therefore, never change the value for the high-density area.
           Subcode           Area where the density is adjusted
              0                      Low-density area
              1                      Medium-density area
 Remarks
Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss
in MFP performance, including degradation in the image quality and a reduction in the life of the consumables.
 The background color of the original is also                      The background color is eliminated, allowing
 copied. Therefore, no clear contrast is made                      clear contrast between the background and text.
 between the background and text.
 Explanation
When a full-color original, such as colored paper, is copied, its background color is also copied. Therefore, no
clear contrast is made between the background and the text on the copy. Perform background adjustment, in
order to copy an original with a highly colored background, while eliminating the background color or making it
white.
 Procedures
* The procedure to use varies, depending on whether to adjust the copy image quality in the Black mode or the
 Full color mode. Refer to the procedure corresponding to the user’s particular request.
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use procedure (1).
* Only the service technician must use procedures (2) to (3).
    After decreasing the background density, copy and check the image quality.
    With the background density set to the minimum, if further image quality adjustments are still necessary, the
    service technician must use the next procedure.
(2) Select [05 ADJUSTMENT MODE]. Change the values for codes [7100] to [7102], [7105] and [7106] adjust
    the density level of the background.
                                                                                               Acceptable
                                                                        Recommended
          Adjustment             Original mode           [05] code                               value           Default
                                                                            value
                                                                                                 range
                                   Text/Photo             05-7100
                                        Text              05-7101
              Black                    Photo              05-7102    Set 127 or larger.      0 to 255         128
                                Image smoothing           05-7105
                                   User custom            05-7106
     * The smaller the setting value, the lighter the background becomes, while the larger the setting value, the
       darker the background becomes.
       Adjust the value and determine the optimal value while checking the copies by considering that the
       setting value "25" for the [05] code corresponds to one step in the background adjustment on the control
       panel.
If further image quality adjustments are still necessary, use the next procedure.
(3) Select [05 ADJUSTMENT MODE]. Change the values for codes [7190] to [7192] to adjust the gamma
    balance in each of low- and medium-density areas.
         Original                                                                       Acceptable
                         [05] code     Subcode         Recommended value                                   Default
          mode                                                                          value range
        Text/Photo        05-7190          0/1
           Text           05-7191          0/1       Set a value smaller than 128.         0 to 255           128
          Photo           05-7192          0/1
    * Set the value in increments of approximately 20, while checking the copy image until the optimum value is obtained.
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted. The background density will vary, if the low- or medium-density area
      is mainly adjusted. Setting “2” for the subcode allows you to adjust the high-density area. But it will not
      affect the background density. Therefore, never change the value for the high-density area.
           Subcode           Area where the density is adjusted
              0                      Low-density area
              1                      Medium-density area
    After adjusting the gamma curve balance, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
 Remarks
Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss in
MFP performance, including degradation in the image quality.
2.6.2 To Adjust the Copy Image Quality in the Full Color Mode
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
  below. You can use one procedure in conjunction with another. But if this changes the image quality more than
  required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
  to the original ones. Then use other procedures.
* Both the service technician and the user can use procedures (1) and (4).
* Only the service technician must use procedures (2) and (3).
(1) Press [AUTO] on the Control Panel to select the automatic density adjustment.
    After decreasing the background density, copy and check the image quality.
    With the background density set to the minimum, if further image quality adjustments are still necessary, the
    service technician must use the next procedure.
(3) Select [05 ADJUSTMENT MODE]. Change the values for the following codes below to adjust the density
    level of the background.
                                                                                          Acceptable
            Adjustment          Original mode [05] code Recommended value                               Default
                                                                                          value range
                                   Text/Photo       05-7656
       Full color / Auto color
                                       Text         05-7657
       (when judged as color)
                                  Printed image     05-7658
                                      Photo         05-7659     Set a value smaller than
                                                                                             0 to 255     128
                                                                          128.
                                       Map          05-7660
              Full color
                                   User custom      05-7661
                                  Red seal color    05-7662
    * Set the value in increments of approximately 10, while checking the copy image until the optimum value is
      obtained.
    * The value for the code corresponding to the original mode (Text/Photo, Text, or Printed image) will affect
      the copy image quality in the Full color mode and the Auto color mode.
    * In the manual density adjustment, images are processed with the highlighting reproducibility given priority.
     Therefore it is recommended to select the automatic density adjustment in order to make the background
     lighter.
    <Note>       “Making the highlighted area more visible (or increasing the background density)” and
                 “eliminating the background color (or decreasing the background density)” are mutually
                 contradictory. If the density of the background color is decreased, the highlighted area may
                 become less visible.
    After adjusting the background density, copy and check the copy image quality.
    If further image quality adjustments are still necessary, or background elimination is necessary according to
    color, use the next procedure.
(4) Select [05 ADJUSTMENT MODE]. Change the values for codes [7960 to 7987] to adjust the color density.
      Color to                                                                    Acceptable
                  Original mode [05] code Subcode Recommended value                               Default
        adjust                                                                    value range
                    Text/Photo    05-7960   0/1/2
                        Text      05-7961   0/1/2
                   Printed image  05-7962   0/1/2
          Y
                       Photo      05-7963   0/1/2
      (Yellow)
                        Map       05-7964   0/1/2
                    User custom   05-7980   0/1/2
                   Red seal color 05-7984   0/1/2
                    Text/Photo    05-7965   0/1/2
                        Text      05-7966   0/1/2
                   Printed image  05-7967   0/1/2
          M
                       Photo      05-7968   0/1/2
     (Magenta)
                        Map       05-7969   0/1/2
                    User custom   05-7981   0/1/2  Set a value larger than 128
                                                   to increase the density.
                   Red seal color 05-7985   0/1/2
                                                                                     0 to 255        128
                    Text/Photo    05-7970   0/1/2  Set a value smaller than 128
                        Text      05-7971   0/1/2  to decrease the density.
                   Printed image  05-7972   0/1/2
          C
                       Photo      05-7973   0/1/2
       (Cyan)
                        Map       05-7974   0/1/2
                    User custom   05-7982   0/1/2
                   Red seal color 05-7986   0/1/2
                    Text/Photo    05-7975   0/1/2
                        Text      05-7976   0/1/2
                   Printed image  05-7977   0/1/2
          K
                       Photo      05-7978   0/1/2
       (Black)
                        Map       05-7979   0/1/2
                    User custom   05-7983   0/1/2
                   Red seal color 05-7987   0/1/2
    * Set the value in increments of approximately 10, while checking the copy image until the optimum value is
      obtained.
* The setting value "25" corresponds to one step in the background adjustment on the control panel.
    * The value for the code corresponding to the original mode (Text/Photo, Text, or Printed image) will affect
      the copy image quality in the Full color mode and the Auto color mode.
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted. The background (highlight) density will vary, if the low- or medium-
      density area is mainly adjusted. Setting “2” for the subcode allows you to adjust the high-density area.
      But it will not affect the background density. Therefore, never change the value for the high-density area.
           Subcode             Area where the density is adjusted
                 0                      Low-density area
                 1                      Medium-density area
    After adjusting the background density, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(5) Press [BASIC] on the Control Panel. Select “TEXT” from among the original mode options.
    * To have “TEXT” selected from among the original mode options by default, refer to To Program
      Frequently Used Copy Settings (To Use Custom Mode).
 Remarks
Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss
in MFP performance, including degradation in the image quality.
Original printed on thin paper (front) Original printed on thin paper (back)
 When a double-sided original printed on thin                      The images seen through the back of the page
 paper is copied, the images seen through the                      are not copied any more in duplex copying.
 back of the page are also copied.
 Explanation
When a double-sided original printed on thin paper, such as a brochure and leaflet, is copied, the images seen
through the back of the page are also copied. Perform background adjustment, in order to avoid this problem.
 Procedures
* The procedure to use varies, depending on whether to adjust the copy image quality in the Black mode or the
 Full color mode. Refer to the procedure corresponding to the user’s particular request.
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use procedure (1) and (2).
* Only the service technician must use procedures (3) to (5).
    After decreasing the background density, copy and check the image quality.
    With the background density set to the minimum, if further image quality adjustments are still necessary, the
    service technician must use the next procedure.
(2) Press [BASIC] on the Control Panel. Press [        ] to decrease the copy density.
    * Move the copy density indicator to the “   ” side for 1 or 2 steps. The images seen through the back of the page
      will no longer be copied. But remember that text will also be lightly copied, depending on the type of original.
    After decreasing the copy density, copy and check the copy image quality.
    With the copy density set to the minimum, if the images seen through the back of the page are still copied, or if
    you would like to prevent this problem without changing the copy density of text, use the next procedure.
(3)    Select [05 ADJUSTMENT MODE]. Change the values for codes [7100] to [7102], [7105] and [7106]
adjust the density level of the background.
                                                                                               Acceptable
                                                                        Recommended
           Adjustment               Original mode        [05] code                               value            Default
                                                                            value
                                                                                                 range
                                      Text/Photo           05-7100
                                          Text             05-7101
               Black                     Photo             05-7102      Set 128 or larger.       0 to 255          128
                                    Image smoothing        05-7105
                                      User custom          05-7106
       * The smaller the setting value, the lighter the background becomes, while the larger the setting value, the
      darker the background becomes.
         Adjust the value and determine the optimal value while checking the copies by considering that the
      setting value "25" for the [05] code corresponds to one step in the background adjustment on the control
      panel.
      After adjusting the background density, copy and check the copy image quality.
      If further image quality adjustments are still necessary, use the next procedure.
(4) Select [05 ADJUSTMENT MODE]. Change the values for codes [7190] to [7192] to adjust the gamma
      balance in each of the low- and medium-density area.
      * Set the value in increments of approximately 20, while checking the copy image until the optimum value is
       obtained. (Note that gradations (density level) in the medium- and high-density areas may be reversed with
       some setting values.)
      * Since the subcode varies according to the area where the density is adjusted, refer to the table below and
       set the appropriate subcode. Remember that mainly adjusting the low- or medium-density area will change
       the copy density of the images seen through the back of the page. Setting “2” for the subcode will allow
       you to adjust the high-density area. But this will not solve the problem. Therefore, never change the value
       for the high-density area.
 Remarks
Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss
in MFP performance, including degradation in the image quality and a reduction in the life of the consumables.
2.7.2 To Adjust the Copy Image Quality in the Full Color Mode
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use procedures (1) and (3).
* Only the service technician must use procedure (2).
    After decreasing the background density, copy and check the copy image quality.
    With the background density set to the minimum, if the images seen through the back of the page are still
    copied, the service technician must use the next procedure.
(2) Select [05 ADJUSTMENT MODE]. Change the values for the following codes below to adjust the density
    level of the background.
                                                                                  Acceptable
           Adjustment          Original mode [05] code Recommended value                         Default
                                                                                 value range
                                 Text/Photo    05-7656
       Full color / Auto color
                                     Text      05-7657
      (when judged as color)
                                Printed image  05-7658
                                                        Set a value smaller than
                                    Photo      05-7659                               0 to 255       128
                                                                  128.
                                     Map       05-7660
              Full color
                                 User custom   05-7661
                                Red seal color 05-7662
    * Set the value in increments of approximately 10, while checking the copy image until the optimum value is
      obtained.
    * The value for the code corresponding to the original mode (Text/Photo, Text, or Printed image) will affect
      the copy image quality in the Full color mode and the Auto color mode.
    <Note>        “Making the highlighted area more visible (or increasing the background density)” and
                  “eliminating the background color (or decreasing the background density)” are mutually
                  contradictory. If the density of the background color is decreased, the highlighted area may
                  become less visible.
    After adjusting the background density, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(3) Press [BASIC] on the Control Panel. Select “TEXT” from among the original mode options.
    * To have “TEXT” selected from among the original mode options by default, refer to 2.18 To Program
      Frequently Used Copy Settings (To Use Custom Mode).
 Remarks
Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss
in MFP performance, including degradation in the image quality.
        Moiré occurs on the photo image.                           Moiré is eliminated and a clear copy image is
                                                                   obtained.
 Explanation
When an original containing photo images or gradational images (halftones) is copied, moiré sometimes occurs
on the copy. Perform adjustment regarding image processing (sharpness intensity), in order to obtain a clear
copy image, while eliminating moiré.
 Procedures
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use procedures (1) and (2).
* Only the service technician must use procedure (3).
(1) Press [BASIC] on the Control Panel and select the original mode option, as follows:
    • To copy in the Full color or the Auto color mode:       Select the Printed image mode option.
    • To copy in the Black mode:                              Select the Photo mode option.
* To have the above original mode options selected by default, use the following procedures:
    * Press [BASIC] on the Control Panel. Select “Custom” from among the original mode options in the Black
      or the Full color mode.
      If [Custom] is not displayed on a menu to select an original mode, enable the User custom mode by
      referring to Chapter 2.18.
    After changing the default original mode option, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
    After softening the copy image, copy and check the copy image quality.
    If further image quality adjustments is necessary, go to the next step.
(3) Select [05 ADJUSTMENT MODE].Change the values for codes [7056] to [7058], [7249], [7794] to [7806],
    and [7061] to adjust the default value for the sharpness intensity.
    * Decreasing the sharpness intensity will minimize moiré.
                                                                                              Acceptable
                                                                      Recommended
         Color mode          Original mode          [05] code                                   value             Default
                                                                          value
                                                                                                range
                               Text/Photo            05-7796
                                   Text              05-7797
                              Printed Image          05-7798
           Full color             Photo              05-7799
                                   Map               05-7800
                               User custom           05-7795
                              Red seal color         05-7794
                               Text/Photo            05-7801
          Mono color               Text              05-7802         Set a value smaller
                                                                                                 0 to 255           128
                              Printed Image          05-7803              than 128.
                               Text/Photo            05-7804
          Twin color               Text              05-7805
                              Printed Image          05-7806
                               Text/Photo            05-7056
                                   Text              05-7057
             Black                Photo              05-7058
                               User custom           05-7249
                             Image smoothing         05-7061
    * The smaller the value is, the weaker the sharpness intensity becomes. The larger the setting value is, the
      stronger the sharpness intensity becomes.
      Changing the values for these codes will change the sharpness intensity, when the “Sharpness” indicator in
      the “IMAGE” menu is set to the center. Remember that 1 step of the indicator will increase or decrease the
      sharpness intensity by 25. If the sharpness intensity of the center value is changed, each step of the
      indicator will be changed accordingly. (For instance, if the center value is decreased by 25 (softer), the
      value of each step of the indicator will also be decreased by 25 (softer).)
      However, the range of adjustment values that is valid for sharpness level change is from -100 to +100 of
      the total of the setting value of the [05] code and that of the indicator. For instance, if the setting value of
      the [05] code is “103” (-25 from the default value), the limit of the steps in the soft side of the indicator is
      “-3”. If the step is set at “-4”, the image quality will not be changed.
                                 -4    -3      -2    -1     0      +1   +2     +3     +4
                          Soft                                                             Sharp
| | | | | | | | |
                   Default:      -100 -75     -50    -25    0      +25 +50 +75 +100                  Assigned adjustment
                                                                                                     value of sharpness
     Setting value "103":        -100 -100 -75       -50    -25    0    +25 +50 +75
    <Note>       “Minimizing moiré” and “Sharpening the copy image” are mutually contradictory. When the
                 adjustment is performed to minimize moiré, the resolution of the copy image may decrease.
 Remarks
• Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss
 in MFP performance, including degradation in the image quality.
 The image looks light and blurred on the copy.                    The edges are enhanced and the copy image
                                                                   becomes sharper.
 Explanation
Perform adjustment regarding image processing (sharpness intensity), in order to obtain a sharper copy image,
when a light or blurred original is copied.
 Procedures
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use procedures (1) and (2).
* Only the service technician must use procedure (3).
(1) Press [IMAGE] on the Control Panel. Press [ONE TOUCH ADJUSTMENT].
    Press [CLEAR] .
    After selecting the “Clear” option, copy and check the copy image quality.
    When the copy image quality with the “Clear” option selected is insufficient, cancel the “Clear” option and
    use the next procedure.
    (The one-touch adjustment can be canceled by pressing [ONE TOUCH ADJUSTMENT] again.)
    After increasing the sharpness intensity, copy and check the copy image quality.
    If further image quality adjustment is necessary, go to the next step.
(3) Select [05 ADJUSTMENT MODE]. Change the values for codes [7056] to [7058], [7249], [7795] to [7800]
    and [7806] to [7809] to adjust the default value for the sharpness intensity.
    * Increasing the sharpness intensity will enhance the edges of the image.
                                                                                                  Acceptable
                                                                           Recommended
         Color mode           Original mode            [05] code                                    value             Default
                                                                               value
                                                                                                    range
                                Text/Photo              05-7796
                                    Text                05-7797
                               Printed Image            05-7798
           Full color              Photo                05-7799
                                    Map                 05-7800
                                User custom             05-7795
                               Red seal color           05-7794
                                Text/Photo              05-7801
          Mono color                Text                05-7802       Set a value larger than
                                                                                                     0 to 255           128
                               Printed Image            05-7803                128.
                                Text/Photo              05-7804
          Twin color                Text                05-7805
                               Printed Image            05-7806
                                Text/Photo              05-7056
                                    Text                05-7057
             Black                 Photo                05-7058
                                User custom             05-7249
                              Image smoothing           05-7061
    * The smaller the setting value is, the weaker the sharpness intensity becomes. The larger the setting value is,
      the stronger the sharpness intensity becomes.
      Changing the values for these codes will change the sharpness intensity, when the “Sharpness” indicator in
      the “IMAGE” menu is set to the center. Remember that 1 step of the indicator will increase or decrease the
      sharpness intensity by 25. If the sharpness intensity of the center value is changed, each step of the
      indicator will be changed accordingly. (For instance, if the center value is increased by 25 (sharper), the
                                     -4    -3    -2      -1     0     +1      +2    +3     +4
                              Soft                                                              Sharp
| | | | | | | | |
                        Default:     -100 -75    -50    -25     0     +25 +50 +75 +100                    Assigned adjustment
                                                                                                          value of sharpness
       Setting value "153":          -75   -50   -25     0     +25 +50 +75 +100 +100
    <Note>       “Sharpening the copy image” and “Minimizing moiré” are mutually contradictory. When an
                 adjustment is performed to sharpen the copy image, moiré may occur.
 Remarks
• Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss
  in copier performance, including degradation in the image quality.
 The edges (contours) of the image are highly                                  The edges look soft.
 visible.
 Explanation
When a photo image is copied, the contours or edges of the image sometimes become highly visible on the copy.
Perform adjustment regarding image processing (sharpness intensity), in order to soften the edges of the image.
 Procedures
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use procedures (1) and (2).
* Only the service technician must use procedures (3) to (5).
(1) Press [BASIC] on the Control Panel and select the original mode option, as follows:
    • To copy in the Full color or the Auto color mode: Select the Printed image mode option.
    • To copy in the Black mode:                           Select the Photo mode option.
    * When copying a photo image in the Full color mode, select the Photo mode option from among the original
      mode options.
    * To have the above original mode options selected by default, refer to 2.18 To Program Frequently Used
      Copy Settings (To Use Custom Mode).
    After changing the default original mode option, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
    After softening the copy image, copy and check the copy image quality.
    If further image quality adjustment is necessary, go to the next step.
(3) Select [05 ADJUSTMENT MODE]. Change the values for codes [7056] to [7058], [7061], [7249] and [7794]
    to [7800] to adjust the default value for the sharpness intensity.
    * Decreasing the sharpness intensity will minimize the edges of the image.
                                                                                          Accepta
                                                                  Recommended
      Color mode         Original mode         [05] code                                  ble value        Default
                                                                      value
                                                                                            range
                           Text / Photo         05-7056
                               Text             05-7057           Set a value smaller
          Black               Photo             05-7058                than 128.            0 to 255          128
                           User custom          05-7249               (28 to 127)
                         Image smoothing        05-7061
                           Text / Photo         05-7796
                               Text             05-7797
                          Printed image         05-7798           Set a value smaller
        Full color            Photo             05-7799                than 128.            0 to 255          128
                               Map              05-7800               (28 to 127)
                           User custom          05-7795
                          Red seal color        05-7794
    * The smaller the setting value is, the weaker the sharpness intensity becomes. The larger the setting value is,
      the stronger the sharpness intensity becomes.
      Changing the values for these codes will change the sharpness intensity, when the “Sharpness” indicator in
      the “IMAGE” menu is set to the center. Remember that 1 step of the indicator will increase or decrease the
      sharpness intensity by 25. If the sharpness intensity of the center value is changed, each step of the
      indicator will be changed accordingly. (For instance, if the center value is decreased by 25 (softer), the
      value of each step of the indicator will also be decreased by 25 (softer).)
      However, the range of adjustment values that is valid for sharpness level change is from -100 to +100 of
      the total of the setting value of the [05] code and that of the indicator. For instance, if the setting value of
      the [05] code is “103” (-25 from the default value), the limit of the steps in the soft side of the indicator is
      “-3”. If the step is set at “-4”, the image quality will not be changed.
                                -4    -3      -2    -1     0           +1   +2   +3     +4
                         Soft                                                                Sharp
| | | | | | | | |
                 Default:       -100 -50     -50    -25    0       +25 +50 +75 +100                    Assigned adjustment
                                                                                                       value of sharpness
   Setting value "103":         -100 -100 -75       -50    -25         0    +25 +50 +75
    <Note>       “Minimizing the edges of the copy image” and “Sharpening the copy image” are mutually
                 contradictory. When the adjustment is performed to minimize the edges, the resolution of the
                 copy image may decrease.
    After decreasing the sharpness intensity, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(4) Select [05 ADJUSTMENT MODE]. Change the values for codes [7889 to 7892] to adjust the maximum
    color density of text.
                                                                          Acceptable
      Color to adjust        [05] code     Recommended value                          Default
                                                                          value range
              Y
                              05-7889
          (Yellow)
                                         Set a value larger than 5 to
             M
                              05-7890    increase the density.
         (Magenta)
                                                                             0 to 10          5
              C
                              05-7891    Set a value smaller than 5 to
           (Cyan)
                                         decrease the density.
              K
                              05-7892
           (Black)
    * Set the value in increment of 1, while checking the copy image until the optimum value is obtained.
    After adjusting the maximum color density of the text, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(5) Select [05 ADJUSTMENT MODE]. Change the setting values for codes [7840], [7841] and [7842] to adjust
    the reproduction level for the Text/photo, User custom and Red seal color original modes.
                                                                                                  Accept
                                                                         Recommended                able
        Color mode             Original mode         [05] code                                                 Default
                                                                             value                 value
                                                                                                  range
                                  Text/Photo          05-7840
                                                                   Set a value smaller than
          Full color              User custom         05-7841                                     0 to 9           0
                                                                              5.
                                 Red seal color       05-7842
* Adjustment for the User custom setting is enabled in the Text/photo mode base only.
    * Set the value in increments of 1, while checking the copy image until the optimum value is obtained.
      Set the value to “5” and check the copy image quality.
      If further image quality adjustment is necessary, set the value to “4”.
      If further adjustment is necessary, decrease the value step by step.
    * Remember that if a value larger than “5” is set, the edges of the image are enhanced (attaching importance
      to the reproducibility of text). The table below shows you the correlation between the value and image
      quality.
 Remarks
Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss
in MFP performance, including degradation in the image quality.
 The solid filled graph is not highly colored                      The solid filled graph becomes highly colored
 enough.                                                           and sharper.
 Explanation
Solid filled bold text, such as a logo, is sometimes not highly colored on the copy. Change the original mode option,
perform copy density adjustment and level adjustment for black headline text, in order to make the solid filled
image more highly colored.
* This adjustment will have an effect only on copying in the Full color mode.
 Procedures
* The procedure to use varies, depending on whether to adjust the copy image quality of a black or colored logo.
 Refer to the procedure corresponding to the user‘s particular request.
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use steps (1) and (2).
* Only the service technician can use steps (3) and (4).
    <Important> Before you start this adjustment, make sure that no color misalignment exists on the logos.
                      If there is any, correct it before adjustment. For how to correct the color misalignment
                      (deviation), refer to “1.5 To Correct Out-of-Registration Colors” in this manual and also the
                      Service Manual.
(1) Press [BASIC] on the Control Panel. If you want to emphasize the reproducibility of text more, select
    “TEXT” as an original mode. If you want to emphasize that of photos, select “TEXT/PHOTO”.
    * If you want the “TEXT” or “TEXT/PHOTO” mode to be the default original mode, refer to "2.18 To
      Program Frequently Used Copy Settings (To Use Custom Mode)".
    After selecting the Text mode, copy and check the copy image quality.
    If further image quality adjustment is necessary, go to the next step.
    After adjusting the tint of black, copy and check the copy image quality.
    If further image quality adjustment is necessary even after the tint of black was set to the maximum, the
    service technician must perform the next step.
(3) Select [05 ADJUSTMENT MODE]. Change the setting values for codes [7811], [7812], [7816] and [7817]
    to adjust the black header density level.
                                                                                        Accepta
        Color           Original
                                        [05] code       Recommended value               ble value         Default
        mode             mode
                                                                                          range
                       Text/Photo         05-7811
                                                      Set a value larger than 4.
                          Text            05-7812
                                                      When the base original
                                                      mode is Text/Photo, Text or
                                                      Map: Set a value larger than
      Full color /
                      User custom         05-7816     4.                                   0 to 8            0
      Auto color
                                                      When the base original
                                                      mode is Printed Image or
                                                      Photo: Set a value larger
                                                      than 3.
                     Red seal color       05-7817     Set a value larger than 4.
    * Set the value in increments of approximately 1, while checking the copy image until the optimum value is
      obtained.
    * For the User custom mode, refer to "2.18 To Program Frequently Used Copy Settings (To Use Custom
      Mode)".
    After adjusting the level of black headline text, copy and check the copy image quality.
    If further image quality adjustment is necessary, the service technician must perform the next step.
(4) Select [05 ADJUSTMENT MODE]. Change the setting values for codes [7975], [7976], [7983] and [7987]
    to adjust the black density.
    * Set the value in increments of approximately 10, while checking the copy image until the optimum value is
      obtained.
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted.
          Subcode            Area where the density is adjusted
               0                        Low-density area
               1                        Medium-density area
               2                        High-density area
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use procedures (1) to (3).
* Only the service technician must use procedure (4).
(1) Press [BASIC] on the Control Panel. Press [ ] to increase the copy density.
    After increasing the copy density, copy and check the copy image quality.
    With the copy density set to the maximum, if further image quality adjustments are still necessary, use the
    next procedure.
(2) Perform color balance adjustment or RGB adjustment to adjust the tint of the colors in general.
    • Use steps (a) through (d) to perform the adjustment.
         (a) Press [IMAGE] on the Control Panel.
         (b) Press [COLOR BALANCE] to adjust the color balance by changing the amount of toner
         (c) Press [+] to enhance the tint of the color or [-] to decrease it.
            * After selecting the color balance by changing the amount of toner (C, M, Y and K), press
              [DETAIL]. The tint of the color can be adjusted according to density area (low-, medium- or high-
              density area).
         (d) Press [ENTER].
    After adjusting the tint of the colors, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(3) Press [BASIC] on the Control Panel. Select “TEXT” from among the original mode options.
    * To have “TEXT” selected from among the original mode options by default, refer to "2.18 To Program
      Frequently Used Copy Settings (To Use Custom Mode)".
    After selecting the Text or Map mode, copy and check the copy image quality.
    If further image quality adjustments are still necessary, the service technician must use the next procedure.
(4) Select [05 ADJUSTMENT MODE]. Change the setting values for codes [7960], [7961], [7965], [7966],
    [7970], [7971], [7975], [7976] and [7980] to [7983] to adjust the density for each color.
                                                                                                       Accep
       Color to                                                              Recommended                table
                      Original mode        [05] code       Subcode                                                  Default
        adjust                                                                   value                 value
                                                                                                       range
                        Text/Photo           05-7960          0/1/2
          Y                Text              05-7961          0/1/2
       (Yellow)         User custom          05-7980          0/1/2
                       Red seal color        05-7984          0/1/2
                        Text/Photo           05-7965          0/1/2
          M                Text              05-7966          0/1/2
       (Magenta)        User custom          05-7981          0/1/2
                       Red seal color        05-7985          0/1/2        Set a value larger than       0 to
                                                                                                                       128
                        Text/Photo           05-7970          0/1/2                 128.                 255
          C                Text              05-7971          0/1/2
        (Cyan)          User custom          05-7982          0/1/2
                       Red seal color        05-7986          0/1/2
                        Text/Photo           05-7975          0/1/2
           K               Text              05-7976          0/1/2
        (Black)         User custom          05-7983          0/1/2
                       Red seal color        05-7887          0/1/2
    * Set the value in increments of approximately 10, while checking the copy image until the optimum value is
      obtained.
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted.
          Subcode            Area where the density is adjusted
               0                        Low-density area
               1                        Medium-density area
               2                        High-density area
Copy Copy
 The hues of highlighters are not accurately                        The areas marked with 2 different colored
 reproduced. The areas marked with 2 different                      highlighters are accurately reproduced
 colored highlighters are reproduced in the                         and distinguishable on the copy.
 same hue. They are indistinguishable.
 Explanation
When an original containing text or areas marked with highlighters is copied, their hues may sometimes not be
accurately reproduced on the copy. The inks of highlighters are special. Therefore, their hues cannot be accurately
reproduced. To reproduce the hues of similar highlighters, such as yellow and green, while producing sharp
contrasts on the copy, perform color adjustment (color balance adjustment or RGB adjustment).
 Procedures
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use procedures (1) and (3).
* Only the service technician must use procedures (2) and (4).
(1) Press [IMAGE] on the Control Panel. Press [ONE TOUCH ADJUSTMENT].
    Press [MARKER] .
    After selecting the “Marker” option, copy and check the copy image quality.
    When the copy image quality with the “Marker” option is insufficient, cancel the “Marker” option and use
    the next procedure. (The one-touch adjustment can be canceled by pressing [ONE TOUCH ADJUSTMENT]
    again.)
(2) Select [05 ADJUSTMENT MODE]. Change the value for code [1769] to adjust the tint of colors in Marker mode.
          [05] code       Subcode         Acceptable value range                   Default
            05-7850         0 to 5                     0 to 6                          3
    * Set the value in increments of approximately 1, while checking the copy image until the optimum value is
      obtained.
    * The subcode varies according to the color where the adjustment is performed. Refer to the table below and
      set the subcode for the color to be adjusted.
           Subcode                             Color to adjust
                0                       Y (Yellow)
                1                       M (Magenta)
                2                       C (Cyan)
                3                       R (Red)
                4                       G (Green)
                5                       B (Blue)
    * Setting a value larger than the default value moves the hue of the color selected to [+] as shown below. On
      the other hand, setting a value smaller than the default value moves it to [-].
      (For instance, set 6 for R (Red). Then the tint of the red is closely matched with that of Y (Yellow). Set 0
      for R (Red). Then the tint of the red will be closely matched with that of M (Magenta).
    After adjusting the hue, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(3) Perform color balance adjustment or RGB adjustment to adjust the tint of the colors in general.
    * For further information regarding the adjustment procedures, refer to procedure (3) in 2.2 To Closely Match
      the Color Balance of the Original.
    After adjusting the tint of colors, copy and check the copy image quality.
    If further image quality adjustments are still necessary, the service technician must use the next procedure.
(4) Select [05 ADJUSTMENT MODE]. Change the values for codes [7960] to [7979] and [7980] to [7983] to
    adjust the density level of each color.
       Color to                                                                                 Acceptable
                    Original mode [05] code Subcode                Recommended value                        Default
        adjust                                                                                  value range
                        Text/Photo     05-7960      0/1/2
                           Text        05-7961      0/1/2
                      Printed image    05-7962      0/1/2
            Y
                          Photo        05-7963      0/1/2
        (Yellow)
                           Map         05-7964      0/1/2
                       User custom     05-7980      0/1/2
                      Red seal color 05-7984        0/1/2
                        Text/Photo     05-7965      0/1/2
                           Text        05-7966      0/1/2
                      Printed image    05-7967      0/1/2
           M
                          Photo        05-7968      0/1/2
       (Magenta)
                           Map         05-7969      0/1/2
                                                               Set a value larger than 128
                       User custom     05-7981      0/1/2      to increase the density.
                      Red seal color 05-7985        0/1/2
                                                                                               0 to 255     128
                        Text/Photo     05-7970      0/1/2      Set a value smaller than
                           Text        05-7971      0/1/2      128 to decrease the
                                                               density.
                      Printed image    05-7972      0/1/2
            C
                          Photo        05-7973      0/1/2
         (Cyan)
                           Map         05-7974      0/1/2
                       User custom     05-7982      0/1/2
                      Red seal color 05-7986        0/1/2
                        Text/Photo     05-7975      0/1/2
                           Text        05-7976      0/1/2
                      Printed image    05-7977      0/1/2
            K
                          Photo        05-7978      0/1/2
         (Black)
                           Map         05-7979      0/1/2
                       User custom     05-7983      0/1/2
                      Red seal color 05-7987        0/1/2
    * Set the value in increments of approximately 10, while checking the copy image until the optimum value is
      obtained.
    * The value for the code corresponding to the original mode (Text/Photo, Text, or Printed image) will affect
      the copy image quality in the Full color mode and the Auto color mode.
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted.
           Subcode           Area where the density is adjusted
               0                        Low-density area
               1                        Medium-density area
               2                        High-density area
 Remarks
Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss
in MFP performance, including degradation in the image quality.
  The copy image looks light on thick paper.                        The copy image looks darker and sharper even
                                                                    on thick paper.
 Explanation
When image looks light on paper that is different from usual paper, perform automatic calibration for each paper type
to obtain the optimum image quality.
 Procedures
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Only the service technician must use procedures (1), (2) and (4).
* Both the service technician and the user can use procedure (3).
(1) Perform automatic calibration for each paper type to correct variations in image density.
    * A privilege to perform automatic calibration is set to Administrator by default but this can be changed to
      the User. For how to change the privilege, refer to the MFP Management Guide.
    • Follow steps (a) through (j) to perform the automatic calibration.
         (a) Select [08 SETTING MODE]. Change the value of the code [9059] to “1” so that automatic
            calibration for each paper type will be enabled.
(2) Select [05 ADJUSTMENT MODE].. Change the values for codes [7913] to adjust the amount of toner used.
    • The code to use varies according to the paper type. Adjust the value for [05] code corresponding to the
      paper type for whose image quality you would like to improve and increase the value to obtain the copy
      density that the user desires.
    • In the [7913] setting, the toner amount of Y, M, C and K single colors is not changed, but that of the
      overlaid colors reproduced by two or more colors, such as R, G, B and K, is controlled.
                                                     Recommended            Acceptable
       Paper type         [05] code     Subcode                                                       Default
                                                           value            value range
          Thick 1                            3
          Thick 2                           4
          Thick 3                           5
          Thick 4                           6
                           05-7913                           128               0 to 255                 128
         Special 1                          7
         Special 2                          8
         Special 3                          9
            OHP                             12
    * Set the value in increments of approximately 4, while checking the copy image until the optimum value is
      obtained.
    * Although the larger the value, the darker the density becomes, offsetting may occur if the value is too large.
      Adjust the value while checking the copy image carefully.
    * The table below shows you the acceptable paper weight for the paper type.
       Paper type                          Acceptable paper weight
          Thick 1               106 to 163 g/m²                    Max. 60 lb. Cover
          Thick 2               164 to 209 g/m²                   Max. 110 lb. Index
          Thick 3               210 to 256 g/m²                   Max. 140 lb. Index
          Thick 4               257 to 280 g/m²                   Max. 100 lb. Cover
    After adjusting the amount of toner used, copy and check the copy image quality.
    If further image quality adjustments are still necessary, the service technician must use the next procedure.
(3) Perform color balance adjustment or RGB adjustment to adjust the tint of the colors in general.
    * For further information regarding the adjustment procedures, refer to procedure (3) in 2.2 To Closely
      Match the Color Balance of the Original.
    After adjusting the tint of colors, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(4) Select [05 ADJUSTMENT MODE]. Change the values for codes [7960] to [7987] to adjust the density level
    of each color.
       Color to                                                                                  Acceptable
                     Original mode [05] code Subcode               Recommended value                         Default
        adjust                                                                                   value range
                      Text/Photo        05-7960       0/1/2
                          Text          05-7961       0/1/2
                     Printed image      05-7962       0/1/2
          Y
                         Photo          05-7963       0/1/2
       (Yellow)
                          Map           05-7964       0/1/2
                      User custom       05-7980       0/1/2
                     Red seal color     05-7984       0/1/2
                      Text/Photo        05-7965       0/1/2
                          Text          05-7966       0/1/2
                     Printed image      05-7967       0/1/2
          M
                         Photo          05-7968       0/1/2
       (Magenta)
                          Map           05-7969       0/1/2
                      User custom       05-7981       0/1/2      Set a value larger than 128
                     Red seal color     05-7985       0/1/2      to increase the density.
                                                                                                    0 to 255         128
                      Text/Photo        05-7970       0/1/2
                                                                 Set a value smaller than 128
                          Text          05-7971       0/1/2      to decrease the density.
                     Printed image      05-7972       0/1/2
          C
                         Photo          05-7973       0/1/2
        (Cyan)
                          Map           05-7974       0/1/2
                      User custom       05-7982       0/1/2
                     Red seal color     05-7986       0/1/2
                      Text/Photo        05-7975       0/1/2
                          Text          05-7976       0/1/2
                     Printed image      05-7977       0/1/2
           K
                         Photo          05-7978       0/1/2
        (Black)
                          Map           05-7979       0/1/2
                      User custom       05-7983       0/1/2
                     Red seal color     05-7987       0/1/2
    * Set the value in increments of approximately 10, while checking the copy image until the optimum value is
      obtained.
    * The value for the code corresponding to the original mode (Text/Photo, Text, or Printed image) will affect
      the copy image quality in the Full color mode and the Auto color mode.
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted.
          Subcode            Area where the density is adjusted
               0                        Low-density area
               1                        Medium-density area
               2                        High-density area
 Remarks
• Enter a value within the recommended value range mentioned in the procedures. Otherwise, it may cause a loss
 in MFP performance, including degradation in the image quality and a reduction in the life of the consumables
• If the adjustment causes a toner fixing problem, decrease the values for codes 05-7899 and 7905 to 7911.
 Explanation
When a photo image or gradational image is copied in the Black mode with the Text/Photo mode selected,
halftones are not accurately reproduced. Select the Photo mode or the Image smoothing mode from among the
original mode options, in order to reproduce halftones better in the Black mode.
 Procedures
* Both the service technician and the user can perform all adjustments.
(1) Press [BASIC] on the Control Panel. Select “PHOTO” from among the original mode options.
    * To have “PHOTO” selected from among the original mode options by default, refer to 2.18 To Program
      Frequently Used Copy Settings (To Use Custom Mode).
    After selecting the Photo mode, copy and check the copy image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(2) Press [BASIC] on the Control Panel. Select “IMAGE SMOOTHING” from among the original mode
    options.
    * To have “IMAGE SMOOTHING” selected from among the original mode options by default, refer to 2.18
      To Program Frequently Used Copy Settings (To Use Custom Mode).
      It is copied in the Full color mode.                         Changing the threshold value will allow a
                                                                   colored original to be copied in the Black
                                                                   mode.
 Explanation
When the Auto color mode is selected, it will be automatically determined whether an original is colored or
black-and-white. Then it will be copied in the Full color mode or the Black mode. But adjust the threshold
value, in order to change the threshold between the Black mode and the Full color mode and suit the preferences
of the user.
 Procedures
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use procedure (1).
* Only the service technician must use procedure (2).
    <Hint>       The relation between the position of the “ACS ADJUSTMENT” indicator and the judgment
                 result is shown below. In the actual adjustment, the threshold varies depending on the shape and
                 size of the original or the density level of the original image. Therefore use the table below only
                 as a reference.
                   Position of      Adjustment
                                                             No. of stamps              No. of red characters
                     indicator         value
                          0            +230             Approx. 10 judged as color             Approx. 100
                          1            +190              Approx. 5 judged as color             Approx. 60
                          2            +150              Approx. 3 judged as color             Approx. 40
                          3             +90              Approx. 2 judged as color             Approx. 20
                          4             +40              Approx. 1 judged as color             Approx. 10
                          5              0              Approx. 1/2 judged as color             Approx. 6
                          6             -20             Approx. 1/2 judged as black             4 or more
                * Position of indicator: “0” in the table above denotes the left end of the indicator (the original is
                  judged as black most) and “6” denotes the right end of the indicator (the original is judged as
                  color most).
                * Adjustment value: This refers to the judgment threshold for the Auto Color mode. The
                  adjustment value of the code in step (2) below will be added to this value.
                * The diameter of the standard “stamp” is  pprox.. from 8 mm to 12 mm. In this field the
                  number of the stamps on the chart and its judgment result are described.
                * The size of the standard “red character” is  pprox.. 10.5 pt. In this field the number of the red
                  characters entered and its judgment result are described.
After specifying the original size and copy size, copy and check the copy image quality.
If further image quality adjustments are still necessary, the service technician must use the next procedure.
(2) Select [05 ADJUSTMENT MODE]. Change the values for code [7630] to adjust the threshold value in the
    Auto color mode.
    * As the set value is increased, the original will be more likely to be recognized as black-and-white. On the
     other hand, if the value is decreased, it will be more likely to be recognized as full color.
                                                                         Acceptable
                 Threshold to adjust                     [05] code                           Default
                                                                         value range
     Threshold when an original is placed on the
                                                          05-7630           0 to 255            70
     original glass or when the DF is used
    * Set the value in increments of approximately 20, while checking the copy image until the optimum value is
      obtained.
• After the threshold in the Auto color mode is adjusted, based on a particular type of original, other types of
 original may not be correctly detected. Therefore, carefully perform the adjustment, while checking whether
 any type of original is correctly detected.
• Note that changing the judgment threshold for originals influences the Auto color in network scanning.
   When a twin-color copy is made in the red                       The blend of undesired colors in the black area
   and black mode, red may be blended in a                         is reduced.
   part of black area.
 Explanation
When a twin-color copy is made, red may be blended into the black area or colors other than black on the twin-
color copy may look different from what the user desires. Adjust the tint of the colors, the reproducibility of
black in the Red and black mode, or the boundary between black and colors other than black, in order to reduce a
blend of undesired colors into the black area or adjust the tint of colors other than black.
 Procedures
* The procedure to use varies, depending on whether to adjust the tint of colors other than black, the
 reproducibility of black in the Red and black mode, or the boundary between black and colors other than black.
 Refer to the procedure corresponding to the user‘s particular request.
* Both the service technician and the user can perform all adjustments.
(1) Press [IMAGE] on the Control Panel. Press [TWIN COLOR COPY].
     Select the Twin-color copy mode from among the twin color copy mode options.
(2) Press [ADJUST]. Press [+]or [-] for the color to be adjusted, in order to adjust the tint of colors other than
    black.
    * Note that the adjustment is not possible if the combination of the selected colors in the Twin-color
      selectable copy mode is "Black and Black" or "Color other than black and Color other than black".
    * Press [DETAIL]. The tint of the color can be adjusted according to the density area (low-, medium- or
      high-density area).
2.16.2 To Adjust the Boundary between Black and Colors other than Black
* Both the service technician and the user can use procedures (1) and (2).
* Only the service technician must use procedure (3).
* Note that the adjustment results of steps (1) and (2) will be applied only to the Red and Black mode. The
 adjustment result of step (3) will be applied to both of the Red and Black mode and the Twin Color mode
 (enabling selection of other colors).
(1) Press [IMAGE] on the Control Panel. Press [TWIN COLOR COPY].
    Press [RED&BLACK] to enter the Red and black mode.
(2) Press [ADJUST]. Press [] or [] for Range Adjustment, in order to adjust the boundary between red and
    black.
    • [] “RED”:               The black area decreases and the red area increases.
    • [] “BLACK”:             The black area increases and the red area decreases.
    After adjusting the boundary, copy and check the copy image quality.
    If further image quality adjustments are still necessary, the service technician must use the next procedure.
(3) Select [05 ADJUSTMENT MODE]. Change the values for codes [7641/7642] to adjust the boundary between
    black and colors other than black.
    * In the Twin-color selectable copy mode, the larger the setting value, the wider the area that is to be
      reproduced by the color selected as the "black in the original” becomes, while the smaller the setting value,
      the wider the area that is to be reproduced by the color selected as the "color other than black" becomes. In
      the Red and Black mode, the larger the setting value, the wider the area to be reproduced in black becomes,
      while the smaller the setting value, the larger the area to be reproduced in red becomes.
                                                                                          Acceptable
                      Mode to adjust                         [05] code Subcode                                 Default
                                                                                          value range
             Twin color mode with selected colors            05-7641
                                                                             0/1/2           0 to 255           128
            Twin color – Red and black mode
                                                             05-7642
       (“RED” selected in Twin color selectable mode)
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted.
          Subcode             Area where the density is adjusted
               0                        High-density area
               1                        Medium-density area
               2                        Low-density area
 Explanation
In twin-color or single-color copying, the tint of the color specified from the control panel can be changed by
adjusting the toner amount of the color (Y, M, C or K).
 Procedures
*The service technician must perform all adjustments.
(1) Select [05 ADJUSTMENT MODE]. Change the values of codes [7644] to [7653] to adjust the value of Y, M,
    C or K for the tint of the specified color.
(2) After changing the setting value, reboot the equipment, and check the tint of the image printed in twin-color
    or single-color copying.
    * Select the subcode (0 to 3) depending on which toner color (Y, M, C and K) you want to change.
    * When the subcode for the specified color (Y, M, C or K) is larger, the toner amount for the adjusted color
      increases, when the former is smaller, the latter decreases.
    * If the value is too large, the density becomes too dark and the reproducibility of gradations in the high-
      density area may become blurred and degraded. Therefore, carefully perform the adjustment, while
      checking the copy or print image.
    * When all the subcodes are set to “0”, the specified color becomes white.
    * Adjustments for yellow green, pink, orange and purple are enabled in mono color copying only.
                                C                                  2
                                K                                  3
                                Y                                  0
                                M                                  1
         Red                                     7649                              0 to 255             128
                                C                                  2
                                K                                  3
                                Y                                  0
                                M                                  1
        Orange                                   7650                              0 to 255             128
                                C                                  2
                                K                                  3
                                Y                                  0
                                M                                  1
        Green                                    7651                              0 to 255             128
                                C                                  2
                                K                                  3
                                Y                                  0
                                M                                  1
         Blue                                    7652                              0 to 255             128
                                C                                  2
                                K                                  3
                                Y                                  0
                                M                                  1
        Purple                                   7653                              0 to 255             128
                                C                                  2
                                 K                                 3
To scan an original fed from the DF To scan an original fed from the DF
 The reproducibility of background may vary,                          The gap in the reproducibility of background
 depending on how to scan an original.                                is reduced.
 Explanation
The reproducibility of the background may vary, depending on the type of original, or whether the scanning is of
an original placed on the original glass or one fed from the DF. Adjust the reproducibility of background, while
scanning an original fed from the DF, in order to minimize the gap in the reproducibility of the background,
using either method of how to scan an original.
*Correctly adjusting the installation heights of the MFP and the DF is a prerequisite to perform this adjustment.
 Therefore, perform all the necessary adjustments. Only if further adjustment is still desired for the reproducibility of
 background, should this adjustment be performed.
 Procedures
* The service technician must perform all adjustments.
(1)    Select [05 ADJUSTMENT MODE]. Change the value for the code [3009] or [3011] to adjust the
      reproducibility of the background when using the DF.
                                                                                         Acceptable
         Color mode          [05] code              Recommended value                                       Default
                                                                                         value range
       Common for full
       color and black
                              05-3009      Set a value larger than 3 to increase the
        for RADF/front
         side for DSDF                     background density.
                                                                                             0 to 4               0
       Common for full                     Set a value smaller than 2 to decrease the
       color and black                     background density.
                              05-3011
          back side for
             DSDF
      * The DSDF is available only for e-STUDIO2505AC/3005AC/3505AC/4505AC/5005AC.
      * Set the value in increments of approximately 1, while checking the copy image until the optimum value is
        obtained. (When changing the value from the default value for the first time, it is recommended to set
        “2.”)
      * The table below shows you the correlation between the value and image quality.
                                                                                                      Reproductivity
           Value                         Advantage of image quality
                                                                                                      of background
                     Default (equivalent to the one obtained when an original placed on the
             0                                                                                              ---
                     original glass is scanned)
                     Lighter background is reproduced than the one obtained when “2” is
             1                                                                                            Light
                     set.
                     Lighter background is reproduced than the one obtained when the
             2                                                                                              ↓
                     default value is set.
                     Darker background is reproduced than the one obtained when the
             3                                                                                              ↓
                     default value is set.
                     Darker background is reproduced than the one obtained when “3” is
             4                                                                                            Dark
                     set.
      After setting the value, copy and check the image quality.
      If further image quality adjustment is necessary, go to the next step.
(2) Select [05 ADJUSTMENT MODE]. Change the values for codes [7025] or [7026] to adjust the
    reproducibility of the background when using the DF.
                                                                                                Acceptable
       Color mode        Original mode        [05] code         Recommended value                                 Default
                                                                                                value range
       Full color for
       RADF/front                ALL            05-7026
      side for DSDF                                          Set a value larger than 128 to
                                                             increase the background
         Black for                                           density.
        RADF/front               ALL            05-7025                                            0 to 255          128
      side for DSDF                                          Set a value smaller than 128
       Common for                                            to decrease the background
       full color and                                        density.
                                 ALL            05-7024
      black back side
         for DSDF
    * The DSDF is available only for e-STUDIO2505AC/3005AC/3505AC/4505AC/5005AC.
    * Set the value in increments of approximately 20, while checking the copy image until the optimum value is
      obtained.
    * Note that the adjustment results are also reflected to the scanning function.
 Explanation
Five original modes (Text/Photo, Text, Printed image, Photo and Map) are available for the color modes and
four original modes (Text/Photo, Text, Photo and Image smoothing) are available for the black mode by default.
However, a new original mode adjusted to be able to satisfy the user’s particular requests about image quality
can be added as a “custom” mode. One custom mode can be added for each of the color and black modes. For
users who frequently use the special type of originals or who are not satisfied with the image quality of the
existing original modes, it is recommended to register a set of copy settings that satisfy the user’s particular
requests as the custom mode. However, “Photo” and “Image smoothing” cannot be selected for the “custom”
mode.
* In the User custom mode, one of the original modes set by default is selected as a base (reference) original
 mode. Adjustments required for the intended purpose must be performed based on the selected mode.
. It is also available to use the custom mode as an independent original mode. This means that the change of the
 setting values in the custom mode does not affect each default original modes.
 Procedures
The adjustment procedure differs depending on whether in the black mode or the full color mode the settings in
the custom mode are adjusted. Ask the user which mode he or she uses and then refer to the procedure that is
more suitable for his or her request.
* All the steps in the adjustment procedure shall be performed by the service technician.
(1) Select [08 SETTING MODE]. Change the value for the code [7034] to enable the functions of the custom
     mode in the black mode.
       Value for 08-7034            Custom mode for black mode
                 0                             Unused
                 1                      Used (Text/Photo base)
                 2                        Used (Text base)
After the setting, perform the adjustment accordingly referring to the corresponding chapters.
* All the steps in the adjustment procedure shall be performed by the service technician.
(1) Select [08 SETTING MODE]. Change the value for the code [7614] to enable the functions of the custom
   mode in the full color mode.
After the setting, perform the adjustment accordingly referring to the corresponding chapters.
 Explanation
When originals such as books are copied, an area outside of the image is copied like a shadow because the
original cover is not fully closed. Use the Outside Erase function to avoid copying areas outside of the image.
 Procedures
* Both the service technician and the user can use all the steps of this adjustment.
(1) Press [EDIT] on the touch panel and then press [OUTSIDE ERASE].
    Change the border between the original and areas not belonging to the original by pressing either [+] or [-]
    as required.
    * When you adjust it to [+] side, the area to be detected as that not belonging to the original is widened.
     When you adjust it to [-] side, the area to be detected as that not belonging to the original is narrowed.
    <Notes>
    The Outside Erase function may not be operated correctly under the following conditions:
    * When making copies in a bright room, leaving the DF or the Platen Cover opened (The density of areas not
      belonging to the original is lowered due to outside light.)
    * When the original has extremely dark areas (The extremely dark areas are wrongly detected as areas not
      belonging to the original and thus erased.)
    * In case of special originals (e.g. a three-dimensional object, an original with black edges, the edges of an
      opened book)
P1 2
                                                                           P1
                                     3
              P2
                                                                                                        4
4 P2
                       P3
                                                                                                            5
5 P4
P4
P5
P5
 When the original is scanned with the DF,                                The blank pages are omitted.
 blank pages included in the original are also
 copied.
 Explanation
When the original is scanned with the DF, blank pages included in the original are also copied. To copy while
omitting the blank pages automatically, the Blank Omit Pages function must be set and its threshold for judging
if the page is blank or not must be adjusted. However, colored originals with no text or images are not omitted
even this adjustment was performed because they cannot be detected as “blank pages” with this function.
* Target originals
     • The back side of an original with dark images on its front side (the dark images can be seen through the
       back side) or an original with light color
     • An original with only 3 letters in 10.5 pt. (an original that is omitted as a blank page with the default
       setting)
 Procedures
* You can start with any of the steps. However, it is recommended to perform the steps in order as listed below.
* Both the service technician and the user can use step (1) and (2).
* Only the service technician can use step (3).
(1) Press [EDIT] on the touch panel and then press [OMIT BLANK PAGE].
    Then press [OK] to enable the Omit Blank Page function.
(2) Press [USER FUNCTIONS] on the Control Panel. Then press [+] or [-] of [OMIT BLANK PAGE
    ADJUSTMENT].
   (3) Select [05 ADJUSTMENT MODE]. Change the value for the code [7618] to adjust the threshold for
        judging the original as blank pages.
    • The larger the setting value is, the more the original tends to be judged as a blank page.
• Originals with a small portion of small letters may be judged as a blank page. Therefore adjust the value
 carefully while checking the copy image.
                                                                                                           Feeding
                                                                                                           direction
 When the density is adjusted automatically, the                   When the density is adjusted
 density on the entire copy image becomes                          manually, the density of the entire
 uneven.                                                           copy image is even.
                                                                               Before adjustment
                                                                                                           Feeding
                                                                                                           direction
 Explanation
When an original with a background is copied in the automatic density adjustment mode, unevenness may occur
on the copied background. Perform this function to avoid density unevenness.
 Procedures
* Both the service technicians and the users can use steps (1) and (3).
* Only the service technicians can use step (2).
(1) Press [BASIC] on the control panel and press [ ] to lower the copy density manually.
   After the adjustment is complete, make a copy and confirm the image quality. If uneven image density still
   persists, have the service technicians perform the following procedure.
(2) Select [05 ADJUSTMENT MODE]. Change the setting values for codes [7237], [7286] and [7287] to set the
    range correction to be fixed.
                                                     Recommended             Acceptable
       Color mode         Original mode [05]code                                                 Default
                                                          value              value range
                             Text/Photo          05-7286
           Black                Text             05-7287            0                      0, 1                 1
                            User custom          05-7237
After the adjustment is complete, make a copy and confirm the image quality.
 Explanation
When an original containing a red seal is copied, users can select the Red Seal Color as the original mode. Use
this mode if the reproducibility of red seal color copied under the default copy settings is insufficient.
 Procedures
   (1) Select [08 SETTING MODE]. Change the value for code [7610] to “1”.
   (2) Press [BASIC] on the control panel in the normal mode. Select “RED SEAL COLOR” among the
       original modes.
After selecting “RED SEAL COLOR”, make a copy and check its image quality.
 Explanation
If streaks occur in copying with the DF, they can be solved by cleaning the original glass in the DF. Moreover,
they can be made inconspicuous by changing the setting of the following self-diagnostic code.
 Procedures
* The procedure of this adjustment differs between "When adjusting the image quality of the Black mode" and
"When adjusting the image quality of the Full color mode".
Select the adjustment procedure corresponding to the user's requirement.
(1) Press [Image] and then [ADF Noise Reduction] on the touch panel.
   Change the setting value of the noise reduction level.
       Setting value                         Description
           None                 The noise reduction function is disabled.
            Low                    The noise reduction level is low.
          Middle                 The noise reduction level is medium.
            High                   The noise reduction level is high.
    After changing the setting value, perform printing and check its image quality.
    If an additional image quality adjustment is necessary, perform the following steps.
(2) Enter [05 ADJUSTMENT MODE] and change the setting values for the codes from [7150] to [7152] to
   adjust the noise reduction level.
                          Original                                                         Acceptable
     Color mode                            [05] Code         Recommended value                                Default
                           mode                                                            value range
                         Text/Photo           7151
                                                             Set a value smaller than
          Black             Text              7152                                            0 to 200           100
                                                                       100.
                        User custom           7150
    * The smaller the value is, the larger the noise reduction level becomes. The larger the value is, the smaller
      the noise reduction level becomes.
    * When "0" is set for the setting value, this function becomes disabled.
After changing the setting value, perform printing and check its image quality.
2.23.2 When adjusting the image quality of the Full color mode
* Both the service technician and the user can use all steps of this adjustment.
    <Notes>
       ・This adjustment is available when the Text/Photo mode is selected for the original mode for full color copying.
       ・Normally, the use with the factory default setting (Disabled) is recommended since the adjustment may
          decrease the reproducibility of fine characters.
(1) Press [Image] and then [ADF Noise Reduction] on the touch panel.
   Change the setting value of the noise reduction level.
      Setting value                              Description
          None                      The noise reduction function is disabled.
           Low                         The noise reduction level is low.
         Middle                      The noise reduction level is medium.
           High                        The noise reduction level is high.
After changing the setting value, perform printing and check its image quality.
 Explanation
The gray tone can be changed when an original including gray color is copied.
 Procedures
The service technician must perform the adjustments.
(1)Select [08 SETTING MODE] and change the setting value of the code [7614] to enable the User custom
   mode for the full color.
   For details, refer to “2.18.2 To Adjust Custom Mode Settings in Full Color Mode”.
   Base mode: [Text/Photo] (Setting value: 1)
(2)Select [05 ADJUSTMENT MODE] and change the setting value for the code [7690].
                                  Acceptable
                   Recommended
      [05] Code                      value        Default                    Remarks
                       value
                                     range
                                                             0: Default (Gray reproduction level is
                                                             equivalent to the Text/photo mode.)
                                                             1: Gray reproduction level is equivalent to
       05-7690           3            0 to 4          0
                                                             the Photo mode.
                                                             3: The gray tone becomes a more bluish
                                                             one.
 Remarks
The setting content of the values “2” and “4” is the same as that for the default (“0”).
2.25 The Color Reproduction of the Back Side Differs from that for the
Front Side at DSDF Scanning
 Explanation
When the color reproduction between the front and back sides at the DSDF scanning differs, the color
reproduction of the back side can be nearly matched with that for the front side.
 Procedures
The service technician must perform all adjustments.
(1)Perform automatic calibration. For details, refer to (1) in “3.1 To Maintain a Steady Color Balance”.
(2)Select [05 ADJUSTMENT MODE]. Enter [50] and press [TEST PRINT] to print out an adjustment pattern.
(3)Select [08 SETTING MODE]. Perform the code [7021] and scan the front and back sides of the pattern
   printed in step (2), in accordance with the message displayed on the panel.
   First, scan the front side. (Place the printed side up. Set the pattern on the DSDF while its side with 2 black
   quadrilaterals comes to the leading edge and press [OK].)
   Next, scan the back side. (Place the printed side down. Set the pattern on the DSDF while its side with 2
   black quadrilaterals comes to the leading edge and press [OK].)
Calibration
 Remarks
If you want to return the color reproduction of the back side at the DSDF scanning to the original one after the
adjustment has been performed with this procedure, carry out the code [7002] in [08 SETTING MODE].
 Explanation
To improve the gradation reproduction of images including dark portions, select the Printed image original mode
or use the color balance.
If you want to improve the gradation reproduction of dark portions in photos only, but not to affect the entire
image, perform the adjustment by means of the following steps.
 Procedures
The service technician must perform all adjustments.
(1)Select [05 ADJUSTMENT MODE] and change the setting value for the code corresponding to the original
    mode to be used.
                                                                                         Acceptable
     Color mode        Original mode        [05] Code       Recommended value                               Default
                                                                                         value range
                          Text/Photo          05-7811       Set a value smaller than
                             Text             05-7812       4.
                                                            Base original mode is
                                                            Text/Photo, Text: Set a
      Full color /                                          value smaller than 4.
                         User custom          05-7816       Base original mode is             0 to 8            0
      Auto color
                                                            Printed image, Photo,
                                                            Map: Set a value smaller
                                                            than 3.
                                                            Set a value smaller than
                        Red seal color        05-7817
                                                            4.
    * Set the value in increments of 1, while checking the copy image until the optimum value is obtained.
    * For the User custom mode, refer to “2.18 To Program Frequently Used Copy Settings (To Use Custom
      Mode)”.
    * The setting content of the default value “0” is the same as that for the setting value of each original mode
     as below.
                 Original mode              Setting value             Original mode                Setting value
                   Text/Photo                                          Printed image
                      Text                         4                       Photo                           3
                  Red seal color                                            Map
e-STUDIO2000AC/2500AC/2505AC/3005AC/3505AC/4505AC/5005AC (Ver00)     © 2016 TOSHIBA TEC CORPORATION All rights reserved
                                                          2-91
2. Copier-specific Adjustments
When this MFP is being used as a printer, printer functions available differ depending on the color or resolution
settings. See the table below for the relation between color or resolution settings and printer functions available.
                                                        600dpi                          1200dpi (PS3 only)
          Printer functions                                           Black                              Black
                                          Auto /        Twin                        Auto /    Twin
                                                                       and                                 and
                                          Color         Color                       Color     Color
                                                                      White                              White
 Image Quality Type
    General                                                                           
    Photograph                               
    Presentation                             
    Line Art                                                                          
    Advanced                                *1                                        
 Image Quality – Basic
    Halftone                                                                                                     
    Use Black for All text                                                                                       
    Pure Black / Pure Gray                                                            
    Black Over Print                        *2                                        
    PostScript Over Print                   *2                                      *2
    Distinguish Thin Lines                                                                                       
 Image Quality – Color Balance / Image Attribute
    Color Balance                                                     *3                                        *3
    Contrast                                                                                                     
    Brightness                                                                                                   
    Background Adjustment                                                                                        
    Saturation                                                                        
    Use Sharpness Filter                                               
    Auto Trapping                                                     
 Others
    Toner Save                                                                                                   
    Toner Limit                                                                                                  
    Calibration                                                                                                    
*1 Applicable only to PS3 and XPS printer drivers
*2 Applicable only to a PS3 printer driver
*3 Applicable only to black (K)
    <Hint>       The resolution level 1200 dpi is suitable for cases such as:
                  • When printing thin lines (e.g. in a graph) clearly
                        > 3.16 To Clearly Print Thin Lines/Double Lines
                 * 600 dpi is recommended for images such as photographs or design drawings that require
                   emphasis on colors or gradations.
 The color balance varies according to a change                     The color balance is constantly maintained.
 in the environment or a lapse of time.
 Explanation
The color balance varies according to a change in the environment, replacement of the consumables and so forth.
Periodically adjust the color reproducibility (automatic calibration), in order to constantly maintain a steady color
balance on the printouts.
Automatic calibration is the basic adjustment to accurately reproduce colors on the printouts. When you would
like to accurately reproduce the desired hue or when you have replaced the consumables and changed the
operating conditions, perform automatic calibration to ensure the color reproducibility.
 Procedures
* Perform the adjustment in accordance with the procedures below.
* Both the service technician and the user can use all steps of this adjustment.
 PCL6      PS3      XPS       Mac
(1) Perform automatic calibration to correct variations in image density.
    * [ADMIN] is selected from among the [CALIBRATION DISPLAY LEVEL] options by default. In other
      words, an administrator is authorized to operate automatic calibration. But the [USER] option can also be
      selected to allow the user to operate it. Refer to the MFP Management Guide for further information
      regarding how to select the [CALIBRATION DISPLAY LEVEL] option.
 The color balance varies according to the                         The color balance is constantly maintained on
 paper type.                                                       any type of paper.
 Explanation
The color balance varies according to a change in the environment, replacement of the consumables and so forth.
The amount of the change varies significantly, according to the paper type. Periodically adjust the color
reproducibility (automatic calibration) corresponding to the paper type, in order to constantly maintain a steady
color balance on any type of paper.
Automatic calibration is the basic adjustment to accurately reproduce colors on the printouts. When you would
like to accurately reproduce the desired hue or when you have replaced the consumables and changed the
operating conditions, perform automatic calibration to ensure the color reproducibility.
 Procedures
* Perform the adjustment in accordance with the procedures below.
* Only the service technician must use procedure (1).
* Both the service technician and the user can use procedure (2).
          (h)Press [DEFAULT] to set the default calibration setting, or [CALIBRATION] to adjust the calibration
            setting.
         * When you press [DEFAULT], the system maintains the default calibration setting for the selected job
            type and returns to the previous screen.
         * When you press [CALIBRATION], a chart is printed out and the calibration guide illustration is
            displayed on the touch panel. Proceed to the next step.
         (i) Place the paper type (A4/LT size) selected in (g) on the bypass tray.
         (j) Place the printed chart face down on the original glass aligning it with its left rear corner, so that two
             black rectangular marks are on the left side.
         (k) Press the [START] button on the control panel.
         * The calibration begins. Do not operate the equipment until the message “Scanning and calibrating”
             disappears.
         * If the chart is not properly placed, the message “Set chart correctly” is displayed on the touch panel. In
             this case, return to step (j) and realign the chart.
      The natural color balance is obtained.                          The desired color balance is obtained.
                                                                         (Ex. Yellowness is enhanced.)
 Explanation
If you would like to change the color balance or darkness of the printouts and reproducibility of halftones in
accordance with a type of original or the user’s requirements, change the “Image Quality Type” option on the
printer driver or adjust the color balance.
 Procedures
* Perform the adjustment in accordance with the procedures below.
* Both the service technician and the user can use procedures (1) and (2).
* Only the service technician must use procedure (3).
(1) Change the “Image Quality Type” option on the printer driver.
    For Windows
      PCL6      PS3       XPS     * This adjustment will have an effect only on Auto or Color mode printing.
    Open the property page of the printer driver. Change the “Image Quality Type” option in the “Image
    Quality” tab.
    For Macintosh
       Mac     * This adjustment will have an effect only on full-color printing.
Open the print dialog box. Change the "Color Settings 1" - “Image Type” option.
    * This adjustment will be effective, only if a file created on a general application, such as Microsoft Office,
      is printed in PostScript (PS3, XPS and Macintosh). It may not be effective, if a file created on a graphic
      application (e.g. Illustrator) or a DTP application (e.g. QuarkXPress) is printed, or a PDF file created on
      these applications is printed using the C, M, Y and K toners. Unmark the “Use PostScript Passthrough”
      checkbox in the “PostScript Setting” options in the “Others” tab. The “Image Quality Type” option will be
      effective, if printing on Windows (PS3) is performed (but not on Macintosh) or if a file created on the
      above applications is printed. However, the color balance may be changed, and also the image quality may
      be diminished, depending on the type of file.
      • Line Art:                 “Line Art” is intended to reproduce thin lines clearly without jaggies visible on
                                  the printout. It is suitable for printing out line drawings. If "Line Art" is
                                  selected, "Detail", which is intended to print halftones in detail (with the high
                                  frequency), will be applied to graphics, images and text, from among the
                                  "Halftone" options. The color reproduction this option provides is the same as
                                  the one the "General" option does. However, since the amount of the black toner
                                  reproduced by 4 colors has been increased, this is also suitable for images
                                  consisting of thin lines such as photographs or barcodes.
    After changing the option on the printer driver, print and check the print image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(2) Change the “Color Balance” option, the “Brightness” or “Saturation” option on the printer driver.
    For Windows
      PCL6      PS3      XPS     * This adjustment will have an effect only on Auto or Color mode printing.
    Open the property page of the printer driver. Press [Image Type Quality] in the “Image Quality” tab.
    Change the option in the “Color Balance” or “Image Attribute” tab.
* Initially, change the value by 4 steps, while checking the printouts until the optimum value is obtained.
• “Color Balance” tab: Change the “All Colors” or “Each Color” option
    For Macintosh
       Mac     * This adjustment will have an effect only on full-color printing.
    Open the print dialog box. Change the "Color Settings 2" - “Color Balance” option, the “Brightness” or
      “Saturation” option.
* Initially, change the value by 4 steps, while checking the printouts until the optimum value is obtained.
    After changing the option on the printer driver, print and check the print image quality.
    If further image quality adjustments are still necessary, the service technician must use the next procedure.
PCL6 PS3 XPS Mac * This adjustment will have an effect only on Auto or Color mode printing.
(3) Select [05 ADJUSTMENT MODE]. Change the values for codes [8042 to 8065] or [8268 to 8275] to adjust
    the color density.
    • Adjust the value for [05] code corresponding to the print option to be applied (PDL and Halftone).
      Ex.: • When printing on Windows is performed with the following options selected: PCL6, Image Quality
             Type = General, Halftone = Auto
                 > Text area, Graphic and image area
                    Change the values of “Smooth” for Y: 05-8058, M: 05-8059, C: 05-0860 and K: 05-8061.
          • When printing on Macintosh is performed with the following option selected: Image Type =
            Photograph, Halftone = Smooth
                 > Change the values for Y: 05-8050, M: 05-8051, C: 05-8052 and K: 05-8053.
            * Printing on Macintosh is performed in PostScript. (See the “PS3” row in the table below.)
      Color to                                                                                               Acceptable
                     PDL        Halftone [05] code Subcode                Recommended value                              Default
       adjust                                                                                                value range
                                 Smooth       05-8058        0/1/2
                    PCL5c
                                  Detail      05-8062        0/1/2
                      PS3        Smooth       05-8050        0/1/2
         Y          (600dpi)      Detail      05-8054        0/1/2
      (Yellow)        PS3        Smooth       05-8268        0/1/2
                   (1200dpi)      Detail      05-8272        0/1/2
                                 Smooth       05-8042        0/1/2
                     XPS
                                  Detail      05-8046        0/1/2
                                 Smooth       05-8059        0/1/2
                    PCL5c
                                  Detail      05-8063        0/1/2
                      PS3        Smooth       05-8051        0/1/2
        M           (600dpi)      Detail      05-8055        0/1/2
     (Magenta)        PS3        Smooth       05-8269        0/1/2
                   (1200dpi)      Detail      05-8273        0/1/2
                                 Smooth       05-8043        0/1/2
                     XPS
                                  Detail      05-8047        0/1/2
                                 Smooth       05-8060        0/1/2      Set a value larger than 128            0 to 255   128
                    PCL5c
                                  Detail      05-8064        0/1/2
                      PS3        Smooth       05-8052        0/1/2
         C          (600dpi)      Detail      05-8056        0/1/2
       (Cyan)         PS3        Smooth       05-8270        0/1/2
                   (1200dpi)      Detail      05-8274        0/1/2
                                 Smooth       05-8044        0/1/2
                     XPS
                                  Detail      05-8048        0/1/2
                                 Smooth       05-8061        0/1/2
                    PCL5c
                                  Detail      05-8065        0/1/2
                      PS3        Smooth       05-8053        0/1/2
         K          (600dpi)      Detail      05-8057        0/1/2
      (Black)         PS3        Smooth       05-8271        0/1/2
                   (1200dpi)      Detail      05-8275        0/1/2
                                 Smooth       05-8045        0/1/2
                     XPS
                                  Detail      05-8049        0/1/2
    * Set the value in increments of approximately 20, while checking the printouts until the optimum value is
      obtained.
    * “Halftone” refers to how halftones are printed. Two options are available: “Smooth” which is intended to
      improve the reproducibility of gradation and “Detail” which is intended to print halftones in details (with
      the high frequency).
      The halftone option to be applied in printing can be selected from among the “Halftone” options on the
      printer driver (Windows) or in the print dialog box (Macintosh).
      “Auto” is selected from among the “Apply to” options by default. It is intended to automatically select
      “Smooth” or “Detail” in accordance with “Apply to” of the halftone option, the selected “Color” and
      “Image Quality Type” options, as described in the table below.
                Graphic
                                     Smooth         Smooth         Smooth          Detail        Smooth          Smooth
        (Illustration, line, etc.)
               Image
                                     Smooth         Smooth         Smooth          Detail        Smooth          Smooth
          (Photograph, etc.)
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted.
          Subcode            Area where the density is adjusted
               0                        Low-density area
               1                        Medium-density area
               2                        High-density area
    <Note>       • This adjustment changes the values set in the MFP. Therefore, it will affect every user who
                   uses the printer by connecting it to the MFP. After the adjustment, the values changed will be
                   applied to all printouts for the “Image Quality Type” and “Halftone” options. (For instance, if
                   the value for [05] code for PCL6 and Smooth is changed, it will be applied to printing
                   performed with PCL6 and Halftone = “Smooth” (or “Auto”) selected.) Carefully perform the
                   adjustment, being aware that the image quality of all future printouts will be changed, when
                   printing out originals other than the one that is used for the adjustment.
   The color balance as viewed on the monitor                       The color balance of the printout is closely
   looks different from the printout.                               matched with the one on the monitor
 Explanation
The color balance on the printouts is initially programmed to provide the maximum color saturation within the
range of colors reproducible in printing. In general, colors, which can be reproduced, vary, depending on
whether they are reproduced on the printout or on the monitor (or depending on whether they are reproduced in
“ink” or with the “light”). Consequently, the color balance on the printout cannot be perfectly matched with the
one on the monitor. Change the “Image Quality Type” option, in order to closely match the color balance on the
printout with the one on the monitor, at a user’s request.
* This adjustment will be effective in closely matching the color balance on the printout with the one on the
 monitor, if the sRGB is selected as a color space. Therefore, remember that it may not be matched with the
 color balance on the monitor, which does not support sRGB or if a color space other than sRGB is selected.
 On commercially available monitors, sRGB is not selected as a color space by default.
 Procedures
* Both the service technician and the user can perform all adjustments.
(1) Select “Photograph” from among the “Image Quality Type” options.
    * This adjustment will be effective, only if a file created on a general application, such as Microsoft Office,
      is printed in PostScript (PS3, XPS and Macintosh). It may not be effective, if a file created on a graphic
      application (e.g. Illustrator) or a DTP application (e.g. QuarkXPress) is printed, or a PDF file created on
      these applications is printed using the C, M, Y and K toners. Unmark the “Use PostScript Passthrough”
      checkbox in the “PostScript Setting” options in the “Others” tab. The “Image Quality Type” option will be
      effective, if printing on Windows (PS3) is performed (but not on Macintosh) or if a file created on the
      above applications is printed. However, the color balance may be changed, and also the image quality may
      be diminished, depending on the type of file.
    For Windows
      PCL6      PS3      XPS      * This adjustment will have an effect only on Auto or Color mode printing.
    Open the property page of the printer driver. Select “Photograph” from among the “Image Quality Type”
    options.
    For Macintosh
      Mac     * This adjustment will have an effect only on full-color printing
Open the print dialog box. Select “Photograph” from among the "Color Settings 1" - “Image Type” options.
 Remarks
• Setting a color space to sRGB is a prerequisite to maximize the effectiveness of this adjustment. Therefore, if
 the monitor does not support sRGB or if color management cannot be performed, the effectiveness of the
 adjustment may be significantly lost.
• In general, it is impossible to reproduce color saturation closely matching the true colors, as viewed on the
 monitor, because the range of colors reproducible in toner colors is narrower than the one on the monitor.
 How gray is reproduced varies depending on                        All color toners are used to reproduce gray.
 the type of original. As a result, there are                      As a result, consistency is maintained in the
 variations in gray.                                               gray hue.
 Explanation
For printing, only the K toner is usually used to reproduce gray areas of drawing data, lines and text. On the
other hand, all color toners (C, M, Y and K) are used to reproduce gray areas of image data, such as BMP, GIF,
JPEG and TIFF. This provides a deeper gray on the printouts. Change the option on the printer driver, in order
to maintain consistency in the gray hue between the drawing data and the image data.
 Procedures
* Both the service technician and the user can perform all adjustments.
    For Windows
      PCL6      PS3      XPS     * This adjustment will have an effect only on Auto or Color mode printing.
    Open the property page of the printer driver. Press [Setting] in the “Image Quality” tab.
    Unmark the “Pure Gray” checkbox in the “Basic” tab.
    For Macintosh
       Mac     * This adjustment will have an effect only on full-color printing.
    Open the print dialog box. Select "Color Settings 1" - “Black – Auto” from among the “Pure Black and
    Gray” options.
 Using all color toners to reproduce black-and-                    Using only the black toner to reproduce black-
 white photo images (bitmap data) blends                           and-white photo images can diminish undesired
 undesired colors in the image.                                    colors.
 Explanation
For printing, only the K toner is usually used to reproduce gray areas of drawing data, lines and text. On the
other hand, all color toners (C, M, Y and K) are used to reproduce gray areas of image data, such as BMP, GIF,
JPEG and TIFF. This provides a deeper gray on the printouts.
The following are examples when image data are reproduced using C, M, Y and K:
  • A gray-scale or black-and-white photo is pasted in photo editing software such as Imaging and Paint Shop
   Pro, in Internet Explorer, word-processing or spreadsheet software.
  • A semi-transparent gray color or gradient of gray is used in the Format AutoShape dialog box on Microsoft
   Office.
   (The gray area printed out as raster data in the same manner as a photo image is reproduced using C, M and Y
   toners, or C, M, Y and K toners.)
Change the option on the printer driver, in order to use only the black toner to reproduce the gray area where C,
M, Y and K are used as described above.
 Procedures
* Perform the adjustment in accordance with the procedure below.
* Both the service technicians and the users can perform step (1).
* Only the service technicians can perform step (2).
(1) Mark the “Pure Gray” checkbox on the printer driver. Select “Text, Graphic & Image” from among the
    “Apply to” options. (“Pure Gray” allows gray areas to always be reproduced using only the K toner without
    changing the hue of color areas.)
    * This adjustment will be effective, only if a file created on a general application, such as Microsoft Office,
      is printed. It may not be effective, if a file created on a graphic application (e.g. Illustrator) or a DTP
      application (e.g. QuarkXPress) is printed, or a PDF file created on these applications is printed.
    For Windows
      PCL6       PS3    * This adjustment will have an effect only on Auto or Color mode printing.
    Open the property page of the printer driver. Press [Setting] in the “Image Quality” tab.
    Mark the “Pure Gray” checkbox in the “Basic” tab. Select “Text, Graphic & Image” from among the
    “Apply to” options.
                                                                     Apply to
                                                                                                          Text, Graphic &
                            Auto                           Text                  Text & Graphic
                                                                                                               Image
         Text         Black (K toner)              Black (K toner)               Black (K toner)           Black (K toner)
       Graphic        Black (K toner)            Color (CMYK toner)              Black (K toner)           Black (K toner)
        Image       Color (CMYK toner)           Color (CMYK toner)            Color (CMYK toner)          Black (K toner)
    * The above table shows the sample combinations of when the Image Quality Type is “General”. When
      “Auto” is selected, the areas to be applied are automatically selected according to the Image Quality Type.
    For Macintosh
       Mac     * This adjustment will have an effect only on full-color printing.
    Open the print dialog box. Select "Color Settings 1" - “Black & Gray – Text, Graphic & Image” from
    among the “Pure Black and Gray” options.
   (2) Select [05 ADJUSTMENT MODE]. Change the values for codes [8210] to [8212] and [8249] to [8254]
        to adjust the judgmental threshold for the “Pure Black and Gray” setting.
    * If the default value is “1”, change the “Pure Black and Gray” setting to “Off” on the Color Settings menu
      of printer driver since no value smaller than 1 is provided.
      When “Text, Graphic & Image” is selected for the “Apply to” setting on the printer driver setting menu,
      photo areas whose colors are close to black may be treated as black because the larger the value is, the
      wider the area to be printed only with K toner becomes. Therefore adjust the value carefully while
      checking the copied image.
Before adjustment
 Explanation
The brightness of the print image can be easily adjusted by changing the “Brightness” setting on the printer
driver.
 Procedures
* Both the service technician and the user can perform all adjustments.
    For Windows
      PCL6      PS3      XPS
    Open the property page of the printer driver. Press [Setting] in the “Image Quality” tab.
    Change the “Brightness” option in the “Image Attribute” tab.
    For Macintosh
       Mac     * This adjustment will have an effect only on full-color printing.
Open the print dialog box. Change the "Color Settings 2" - “Brightness” option.
 Remarks
The brightness adjustment does not affect black text (CMY = 100%, K = 100% or RGB = 0%).
Before adjustment
 Explanation
The saturation of the print image can be easily adjusted by changing the “Saturation” option on the printer driver.
 Procedures
* Both the service technician and the user can use procedure (1).
* Only if the saturation of R (Red) is still insufficient even after procedure (1) has been used, must the service
 technician use procedure (2).
    For Windows
      PCL6      PS3      XPS
    Open the property page of the printer driver. Press [Setting] in the “Image Quality” tab.
    Change the “Saturation” option in the “Image Attribute” tab.
    For Macintosh
       Mac
Open the print dialog box. Change the "Color Settings 2" - “Saturation” option.
    After changing the option on the printer driver, print and check the print image quality.
    Only if the saturation of R (Red) is still insufficient even after all the above procedures have been used, must
    the service technician use the next procedure.
   (2) Select [05 ADJUSTMENT MODE]. Change the value for code [2905] to adjust the transfer (1st transfer)
        roller bias output.
        (Adjust the offset voltage of the transfer roller bias for C (Cyan) and K (Black) so as to increase the
        density of R (Red).)
    • The code to use varies depending on the paper type and color to adjust. Adjust the value for the subcode
      corresponding to the color for which you would like to improve the image quality. Set the value within a
      range of “2” to “5” to obtain the highest density of R (Red).
    <Note>        • The adjustment may possibly decrease the density of G (Green), B (Blue) and K (Black)
                    extremely. Therefore, carefully perform the adjustment, while checking the printout.
                  • Unless this adjustment changes the density of R (Red), return the values to the default (set
                    value: 5).
                  • This adjustment may affect not only the printouts but also every type of image quality such as
                    the copy image. Therefore, perform the adjustment, being aware that the image quality of all
                    future printouts will be changed, when printing out originals other than the one that is used for
                    the adjustment.
 Remarks
The saturation adjustment does not affect black or gray areas on the printout.
Before adjustment
 Explanation
The contrast of the print image can be easily adjusted by changing the “Contrast” option on the printer driver.
 Procedures
* Both the service technician and the user can perform all adjustments.
    For Windows
      PCL6      PS3      XPS     .
    Open the property page of the printer driver. Press [Setting] in the “Image Quality” tab.
    Change the “Contrast” option in the “Image Attribute” tab.
    For Macintosh
       Mac     * This adjustment will have an effect only on full-color printing.
Open the print dialog box. Change the "Color Settings 2" - “Contrast” option.
Print data
 Explanation
Increase the sharpness intensity under the menu on the printer driver, in order to obtain a sharper print image.
* The sharpness adjustment will have an effect on photo images, such as BMP, GIF, JPEG and TIFF.
 Procedures
* Perform the adjustment in accordance with the procedure below.
* Both the service technicians and the users can perform step (1).
* Only the service technicians can perform step (2).
    For Windows
      PCL6      PS3       XPS
    Open the property page of the printer driver. Press [Setting] in the “Image Quality” tab.
    Set the value for “Sharpness” within a range of “1” to “4” in the “Image Attribute” tab.
    • Setting “4” provides the sharpest print image.
* Sharpness adjustment is not available when 1200 dpi is selected for PS3 printer driver.
    For Macintosh
       Mac
    Open the print dialog box. Set the value for "Color Settings 2" - “Sharpness” within a range of “1” to “4.”
    • Setting “4” provides the sharpest print image.
   After changing the options on the printer driver, print and check the print image quality.
   If further image quality adjustments are still necessary, use the next procedure.
(2) Select [05 ADJUSTMENT MODE]. Increase the setting values for codes [8108] to [8113] and [8118] to
    adjust the sharpness to be increased.
     ・Adjust the [05] code for the settings (color mode and original type) to be used for printing.
                                                                                                 Acceptable
        Color                                                               Recommended
                     Image quality type          [05] code     Subcode                               value                Default
        mode                                                                      value
                                                                                                     range
                             General               05-8110        0/1/2
                              Photo                05-8111        0/1/2
      Auto/Color
                          Presentation             05-8112        0/1/2
                                                                            Set a value larger
                             Line art              05-8113        0/1/2                             0 to 255               128
                                                                            than 128.
      Mono color               -                   05-8118        0/1/2
      Twin color               -                   05-8108        0/1/2
      Auto/Color         Red seal color            05-8109        0/1/2
      Subcode               Original
         0                    Text
         1                  Graphic
         2                   Image
     <Note> • When the setting value of this code is larger than "128" (default), the level of the sharpness
                intensity is equivalent to the one when the value is set within a range of "0" to "+4" on the printer
                driver menu. When the setting value of this code is smaller than "128", the level of the sharpness
                intensity is equivalent to the one when the value is set within a range of "-4" to "-1" on the
                printer driver menu. Note that when the setting value of this code is "0", the image quality will
                not be changed even if the value is changed on the printer driver menu.
 Explanation
Decrease the sharpness intensity under the menu on the printer driver, in order to obtain a softer print image.
* The sharpness adjustment will have an effect on photo images, such as BMP, GIF, JPEG and TIFF.
 Procedures
* Both the service technicians and the users can perform step (1).
* Only the service technicians can perform step (2).
    For Windows
      PCL6      PS3      XPS
    Open the property page of the printer driver. Press [Setting] in the “Image Quality” tab.
    Uncheck the “Use Sharpness Filter” checkbox in the “Image Attribute” tab. To make a softer image, check
    its checkbox and then set the value within a range of “-1” to “-4.”
    • Setting “-4” provides the smoothest (softest) image.
    * Sharpness adjustment is not available when 1200 dpi is selected for PS3 printer driver.
e-STUDIO2000AC/2500AC/2505AC/3005AC/3505AC/4505AC/5005AC (Ver00)     © 2016 TOSHIBA TEC CORPORATION All rights reserved
                                                          3-40
                                                                                       3. Printer-specific Adjustments
    For Macintosh
       Mac
    Open the print dialog box. Set the value for "Color Settings 2" - “Sharpness” within a range of “-1” to “-4.”
    • Setting “-4” provides the smoothest (softest) print image.
   After changing the options on the printer driver, print and check the print image quality.
   If further image quality adjustments are still necessary, use the next procedure.
   (2) Select [05 ADJUSTMENT MODE]. Decrease the setting values for codes [8108] to [8113] and [8118] to
    adjust the sharpness to be decreased.
     • Adjust the [05] code for the settings (color mode and original type) to be used for printing.
                                                                                           Acceptable
        Color           Original           [05]                     Recommended
                                                     Subcode                                   value       Default
        mode             mode             code                            value
                                                                                               range
                         General         05-8110       0/1/2
                          Photo          05-8111       0/1/2
      Auto/Color
                      Presentation       05-8112       0/1/2
                         Line art        05-8113       0/1/2            Set a value
                                                                                              0 to 255        128
        Mono                                                        smaller than 128.
                            -            05-8118       0/1/2
        color
      Twin color            -            05-8108       0/1/2
      Auto/Color Red seal color 05-8109                0/1/2
        Subcode               Original
           0                    Text
           1                  Graphics
           2                   Image
    <Note>      •When the setting value of this code is larger than "128" (default), the level of the sharpness
                intensity is equivalent to the one when the value is set within a range of "0" to "+4" on the printer
                driver menu. When the setting value of this code is smaller than "128", the level of the sharpness
                intensity is equivalent to the one when the value is set within a range of "-4" to "0" on the printer
                driver menu. Note that when the setting value of this code is "0", the image quality will not be
                changed even if the value is changed on the printer driver menu.
 Explanation
When a low-resolution image is printed, the edges may be jagged. Decrease the sharpness intensity, in order to
eliminate the jaggies from the print image.
* The sharpness adjustment will have an effect particularly on photo images, such as BMP, GIF, JPEG and TIFF.
 Procedures
* Both the service technicians and the users can perform step (1).
* Only the service technicians can perform step (2).
    For Windows
      PCL6      PS3      XPS
    Open the property page of the printer driver. Press [Setting] in the “Image Quality” tab.
    Uncheck the “Use Sharpness Filter” checkbox in the “Image Attribute” tab. To make a smoother image,
    check its checkbox and then set the value within a range of “-1” to “-4.”
    • Setting “-4” provides the smoothest (softest) print image.
    * Sharpness adjustment is not available when 1200 dpi is selected for PS3 printer driver.
e-STUDIO2000AC/2500AC/2505AC/3005AC/3505AC/4505AC/5005AC (Ver00)     © 2016 TOSHIBA TEC CORPORATION All rights reserved
                                                          3-44
                                                                                       3. Printer-specific Adjustments
    For Macintosh
       Mac
    Open the print dialog box. Set the value for "Color Settings 2" - “Sharpness” within a range of “-1” to “-4.”
    • Setting “-4” provides the smoothest (softest) print image.
   After changing the options on the printer driver, print and check the print image quality.
   If further image quality adjustments are still necessary, use the next procedure.
   (2) Select [05 ADJUSTMENT MODE]. Decrease the setting values for codes [8108] to [8113] and [8118] to
        adjust the sharpness to be decreased.
• Adjust the [05] code for the settings (color mode and original type) to be used for printing.
                                                                                           Acceptable
         Color          Original             [05]                   Recommended
                                                      Subcode                                value           Default
         mode            mode                code                       value
                                                                                             range
                         General            05-8110     0/1/2
                          Photo             05-8111     0/1/2
      Auto/Color
                       Presentation         05-8112     0/1/2
                         Line art           05-8113     0/1/2          Set a value
                                                                                             0 to 255           128
        Mono                                                         smaller than 128.
                             -              05-8118     0/1/2
        color
      Twin color            -               05-8108     0/1/2
      Auto/Color      Red seal color        05-8109     0/1/2
        Subcode                  Original
           0                       Text
           1                     Graphics
           2                      Image
    <Note>      •When the setting value of this code is larger than "128" (default), the level of the sharpness
                 intensity is equivalent to the one when the value is set within a range of "0" to "+4" on the printer
                 driver menu. When the setting value of this code is smaller than "128", the level of the sharpness
                 intensity is equivalent to the one when the value is set within a range of "-4" to "0" on the printer
                 driver menu. Note that when the setting value of this code is "0", the image quality will not be
                 changed even if the value is changed on the printer driver menu.
 Explanation
When highly colored text and lines where a large amount of toner is used, created on raster data (image), such as
BMP, GIF, JPEG and TIFF are printed, the text and lines look smudged due to toner scattering around the text
and lines. Adjust the sharpness intensity or the amount of toner used, in order to obtain a clearer print image.
<Hint>      If smudged text and lines appear on the print image in PDF format on Adobe Reader, unmark the
            “Print as image” checkbox to print out the image. If the “Print as image” checkbox is marked, text
            and lines will be printed as raster data (bitmap image) and may be smudged.
 Procedures
* Perform the adjustment in accordance with the procedures below.
* Both the service technicians and the users can perform step (1).
* Only the service technicians can perform steps (2) and (3).
(1) Change the “Use Sharpness Filter” option on the printer driver.
    For Windows
      PCL6      PS3      XPS      * This adjustment will have an effect only on Auto or Color mode printing.
    Open the property page of the printer driver. Press [Setting] in the “Image Quality” tab.
    Uncheck the “Use Sharpness Filter” checkbox in the “Image Attribute” tab.
    * Always set “Uncheck”. Setting “-2” or a smaller value may provide blurred print images.
* Sharpness adjustment is not available when 1200 dpi is selected for PS3 printer driver.
    For Macintosh
       Mac
    Open the print dialog box and change the "Color Settings 2" - "filter" setting.
After changing the options on the printer driver, print and check the print image quality
               Subcode                        Original
                  0                             Text
                  1                           Graphics
                  2                            Image
    <Note>        •When the setting value of this code is larger than “128” (default), the level of the sharpness
                  intensity is equivalent to the one when the value is set within a range of “0” to “+4” on the
                  printer driver menu. When the setting value of this code is smaller than “128”, the level of the
                  sharpness intensity is equivalent to the one when the value is set within a range of “-4” to “-1”
                  on the printer driver menu. Note that when the setting value of this code is “0”, the image
                  quality will not be changed even if the value is changed on the printer driver menu.
(3) Select [05 ADJUSTMENT MODE] and adjust the toner limit by setting a value smaller than the default for
    [8070/8071/8090/8089].
                                                         Subcode
                                                                                Recom        Acceptable
                                     [05]                        e-STUDIO
      Resolution Halftone                       e-STUDIO                        mended         value    Default
                                     code                        2505/3505/
                                                20000AC                          value         range
                                                                 4505/5005
                                                    0 to                        Set a
                       Smooth       05-8071                        0 to 12
                                                4/7/8/11/12                    value
         600dpi                                                               smaller        0 to 255      128
                                                  0 to
                         Detail   05-8070                       0 to 12       than the
                                              4/7/8/11/12
                                                                              default.
                                                  0 to                          Set a
                        Smooth 05-8090                          0 to 12
                                              4/7/8/11/12                      value
        1200dpi                                                               smaller        0 to 255      128
                                                  0 to                        than the
                         Detail   05-8089                       0 to 12
                                              4/7/8/11/12                     default.
     * Set the value in increments of approximately 30, while checking the printouts until the optimum value is
       obtained.
        Subcode               Original
            0               Plain paper 1
            1                   Thick
            2              Recycled paper
            3                  Thick 1
            4                  Thick 2
            5                 Thick 3*
            6                 Thick 4*
            7                 Special 1
            8                 Special 2
            9                Special 3*
           10                   Thin*
           11                 Envelope
           12                   OHP
     * e-STUDIO2505AC/3005AC/3505AC/4505AC/5005AC only
    (4) Select [08 SETTING MODE]. Adjust the subcodes “0” to “7” of code [2620] or those of code [2622].
    This adjustment is applied in common to all printer drivers.
                                                                                                   Acceptable
    Color to      Paper                                                    Recommended
                             Resolution      [08] code      Subcode                                  value             Default
     adjust        type                                                        value
                                                                                                     range
       Y                                                           0
       M           Plain                                           1
                                  600dpi       08-2620
       C           paper                                           2
       K                                                           3
       Y                                                           4
       M                                                           5
                   Thick          600dpi       08-2620
       C                                                           6        Set a value
       K                                                           7       smaller than 15
                                                                                                        8-36                15
       Y                                                           0       to decrease toner
       M                                                           1       scattering.
                   Plain
                                  1200dpi      08-2622
       C           paper                                           2
       K                                                           3
       Y                                                           4
       M                                                           5
                   Thick          1200dpi      08-2622
       C                                                           6
       K                                                           7
    * Plain paper: Plain paper, recycled paper, and thin paper
    * Thick: Thick 1/2/3/4, special 1/2/3, envelope, and OHP
• The adjustment may possibly cause an increase in the amount of toner used, moiré, blurred text (blurring of
 small and dark text), faint text (fine outlines of text shredded), diminished photo images or gradational images
 (less accurate reproducibility of halftones), or in some consumption conditions, background fogging or a
 decrease in the amount of developer material (carrier streaks). Therefore, carefully perform the adjustment,
 while checking the printouts.
• In step (4) the adjustment value for K (Black) and the resolution 600 dpi is the same as those for the Photo
 mode in the Copier function and the Gray scale mode. Therefore, carefully perform the adjustment, while
 checking the printouts.
• In step (4) the adjustment value for the resolution 600 dpi is the same as that for the Full Color Mode in the
 Copier function. Therefore, carefully perform the adjustment, while checking the printouts.
• The adjustment may possibly cause dark areas such as making shades on photo images look unnaturally faint.
 Therefore, carefully perform the adjustment, while checking the printouts.
 Remarks
• Enter the value mentioned in the procedures or one within the recommended value range for the adjustment.
 Otherwise, it may cause a loss in MFP performance, including degradation in the image quality and a reduction
 in the life of the consumables.
 Light-colored thin lines and text are dotted on                   The light-colored thin lines and text are clearly
 the printout.                                                     printed out.
 Explanation
When light-colored thin lines and text are printed, they may be dotted on the printout. Change the options on the
printer driver, adjust the color balance or gamma curve balance, in order to print them out clearly.
 Procedures
* The procedure to use varies, depending on whether to adjust the print image quality in the Color mode or in the
 Black and White mode. Refer to the procedure corresponding to the user’s particular request.
* The item to set varies depending on the type of data to adjust. Select the effective option according to the data
 format to adjust, such as a print image (raster data), text (font), and line drawing (graphic data).
    For Windows
      PCL6      PS3      XPS     * This adjustment will have an effect only on Auto or Color mode printing.
    Open the property page of the printer driver. Change the "Image Quality Type" and "Halftone" options in
    the Image Quality tab.
    • Set either of the following options, in accordance with the type of original to print:
         • Image Quality Type: "Presentation" (To make color darker)
           Halftone:               "Detail" (To make the halftone screen high frequency)
         • Image Quality Type:     "Line Art" (To make the color darker and enhance thin lines)
           Halftone:               "Auto" or "Detail" (To make the halftone screen high frequency)
    For Macintosh
       Mac     * This adjustment will have an effect only on full-color printing.
Open the print dialog box. Change the "Color Settings 1" - "Image Type" and "Halftone" options.
    • Set either of the following options, in accordance with the type of original to print:
         • Image Type:                   "Presentation" (To make color darker)
          Halftone:                      "Detail" (To make the halftone screen high frequency)
         • Image Type:                   "Line Art" (To make the color darker and enhance thin lines)
          Halftone:                      "Auto" or "Detail" (To make the halftone screen high frequency)
    After changing the options on the printer driver, print and check the print image quality.
    If further image quality adjustments are still necessary, use the next procedure.
    For Windows
      PCL6          PS3   XPS    * This adjustment will have an effect only on Auto or Color mode printing.
    Open the property page of the printer driver. Press [Setting] in the "Image Quality" tab.
    Set the value for "Use Sharpness Filter" within a range of "1" to "4" in the "Image Attribute" tab.
    • Setting "4" provides the sharpest print image.
    * Initially, set "4" and check the printout. If further image quality adjustments are still necessary, refer to (5)
      to do this.
* Sharpness adjustment is not available when 1200 dpi is selected for PS3 printer driver.
    For Macintosh
       Mac     * This adjustment will have an effect only on full-color printing.
    Open the print dialog box. Set the value for "Color Settings 2" - "Sharpness" within a range of "1" to "4."
    • Setting "+4" provides the sharpest print image.
    * Initially, set "4" and check the printout. If further image quality adjustments are still necessary, refer to (5)
      to do this.
    <Hint>          In addition to the sharpness adjustment, decreasing "Brightness" (moving to [-] side), changing
                    "Contrast" or increasing "Saturation" (moving to [+] side) may improve the image quality.
    After changing the option on the printer driver, print and check the print image quality.
    If further image quality adjustments are still necessary, use the next procedure.
PCL6 PS3 XPS Mac * This adjustment will have an effect only on Auto or Color mode printing.
(3) Select [05 ADJUSTMENT MODE]. Increase the values for codes [8109 to 8113] to perform fine adjustment
    and increase the sharpness intensity.
    • Adjust the value for [05] code corresponding to the print option to be applied (Color mode and Image
      quality type).
                                                                                                       Acceptabl
          Color           Image                                                 Recommend
                                            [05] code          Subcode                                  e value       Default
          mode          quality type                                             ed value
                                                                                                         range
                           General            05-8110              0/1/2
                         Photograph           05-8111              0/1/2
          Auto /                                                                   Set a value
                         Presentation         05-8112              0/1/2                                 0 to 255       128
          Color                                                                 larger than 128.
                           Line Art           05-8113              0/1/2
                        Red seal color        05-8109              0/1/2
         Subcode          Apply to
            0                Text
            1              Graphic
            2               Image
    * Set the value in increments of approximately 5, while checking the printouts until the optimum value is
      obtained.
    <Note>         • This adjustment changes the values set in the MFP. Therefore, it will affect every user who
                     uses the printer by connecting it to the MFP. After the adjustment, the values changed will be
                     applied to all printouts for the "Sharpness" option. Carefully perform the adjustment, being
                     aware that the image quality of all future printouts will be changed, when printing out originals
                     other than the one that is used for the adjustment.
                   • When the setting value of this code is larger than "128" (default), the level of the sharpness
                     intensity is equivalent to the one when the value is set within a range of "0" to "+4" on the
                     printer driver menu. When the setting value of this code is smaller than "128", the level of the
                     sharpness intensity is equivalent to the one when the value is set within a range of "-4" to "0"
                     on the printer driver menu. Note that when the setting value of this code is "0", the image
                     quality will not be changed even if the value is changed on the printer driver menu.
PCL6 PS3 XPS * This adjustment will have an effect only on Auto or Color mode printing.
(4) Open the property page of the printer driver. Press [Setting] in the "Image Quality" tab.
    Mark the "Detail" checkbox in the "Color Balance" tab. Press [Edit].
    Set the value for the Low/Middle density of the color you would like to adjust, within a range of "1" to "4"
    in the "Color Balance Details" option.
    * This adjustment will have an effect only on printing on the Windows PCL6, XPS or PS3 emulation printer
      driver.
      (This adjustment cannot be performed on a Macintosh printer driver.)
    After changing the option on the printer driver, print and check the print image quality.
    If further image quality adjustments are still necessary, use the next procedure.
PCL6 PS3 XPS Mac * This adjustment will have an effect only on Auto or Color mode printing.
             Select [05 ADJUSTMENT MODE]. Change the values for codes [8054 to 8057], [8062 to 8065],
             [8046 to 8049] or [8272 to 8275] to adjust the color balance and increase the color density.
             • Adjust the value for [05] code corresponding to the print option to be applied (PDL and Halftone).
              Ex.: • When printing on Windows is performed with the following options selected: PCL6, Image
                     Quality Type = Presentation, Halftone =Detail
                      > Change the values for Y: 05-8062, M: 05-8063, C: 05-8064 and K: 05-8065.
                    • When printing on Macintosh is with the following option selected: Image Type = Line Art,
                      Halftone = Auto
                        > Change the values for Y: 05-8054, M: 05-8055, C: 05-8056 and K: 05-8057.
                      * Printing on Macintosh is performed in PostScript. (See the "PS3" row in the table below.)
               Color                                                                                   Acceptab
                                                            [05]                Recommended
                 to                PDL        Halftpne              Subcode                             le value         Default
                                                            code                    value
               adjust                                                                                    range
                                PCL6            Detail    05-8062     0/1/2
                 Y           PS3 (600dpi)       Detail    05-8054     0/1/2
              (Yellow)       PS3 (1200dpi)      Detail    05-8272     0/1/2
                                 XPS            Detail    05-8046     0/1/2
                                PCL6            Detail    05-8063     0/1/2
                M            PS3 (600dpi)       Detail    05-8055     0/1/2
             (Magenta)       PS3 (1200dpi)      Detail    05-8273     0/1/2
                                 XPS            Detail    05-8047     0/1/2      Set a value larger
                                                                                                        0 to 255          128
                                PCL6            Detail    05-8064     0/1/2      than 128.
                 C           PS3 (600dpi)       Detail    05-8056     0/1/2
               (Cyan)        PS3 (1200dpi)      Detail    05-8274     0/1/2
                                 XPS            Detail    05-8048     0/1/2
                                PCL6            Detail    05-8065     0/1/2
                  K          PS3 (600dpi)       Detail    05-8057     0/1/2
               (Black)       PS3 (1200dpi)      Detail    05-8275     0/1/2
                                 XPS            Detail    05-8049     0/1/2
            * Set the value in increments of approximately 20, while checking the printouts until the optimum
              value is obtained.
            * The value for [05] code for K (black) will affect black-and-white images (including text, lines and
              photos) on the printout.
            * The subcode varies according to the area where the density is adjusted. Refer to the table below
              and set the subcode for the area to be adjusted.
            * Whether to fix or change the maximum density in a high-density area can be selected by the setting
              of 05-8066.
                                             Area where the density is
                    Subcode
                                                    adjusted
                         0                       Low-density area
                         1                       Medium-density area
                         2                       High-density area
    <Note>       This adjustment changes the values set in the MFP. Therefore, it will affect every user who uses
                 the printer by connecting it to the MFP. After the adjustment, the values changed will be applied
                 to all printouts for the "Image Quality Type" and "Halftone" options. (For instance, if the value
                 for [05] code for PCL6 and Detail is changed, it will be applied to printing performed with
                 PCL6 and Halftone = "Detail" (or "Auto") selected.)
                 Carefully perform the adjustment, being aware that the image quality of all future printouts will
                 be changed, when printing out originals other than the one that is used for the adjustment.
                 If "Smooth" is selected from among the "Halftone" options, this adjustment will have no affect.
    After adjusting the color balance, print and check the print image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(6) Select [08 SETTING MODE]. Adjust the subcodes “0” to “7” of code [2620] or those of code [2622]. This
    adjustment is applied in common to all printer drivers.
・The adjustment may possibly cause an increase in the amount of toner used, moiré, blurred text (blurring of
  small, dark text), faint text (fine outlines of text shredded), diminished photo images or gradational images
  (less accurate reproducibility of halftones), or in some consumption conditions, background fogging or a
  decrease in the amount of developer material (carrier streaks). Therefore, carefully perform the adjustment,
  while checking the printouts.
• In step (6) the adjustment value for K (Black) and the resolution 600 dpi is the same as those for the Photo
 mode in the Copier function and the Gray scale mode. Therefore, carefully perform the adjustment, while
 checking the printouts.
・In step (6) the adjustment value for the resolution 600 dpi is the same as that for the Full Color mode in the
  Copier function. Therefore, carefully perform the adjustment while checking the printed image.
 Remarks
• Enter the value mentioned in the procedures or one within the recommended value range for the adjustment.
   Otherwise, it may cause a loss in MFP performance, including degradation in the image quality and a
   reduction in the life of the consumables.
3.14.2 To Adjust the Print Image Quality in the Black and White Mode
* Perform the adjustment in accordance with the procedures below.
* Both the service technician and the user can use procedure (1), (2) and (4).
* Only the service technician must use procedures (3) and (5).
    For Windows
      PCL6      PS3      XPS      * This adjustment will have an effect only on Black and white mode printing.
    Open the property page of the printer driver. Press [Setting] in the "Image Quality" tab.
    Select "Detail" from among the "Halftone" options in the "Basic" tab.
    For Macintosh
       Mac     * This adjustment will have an effect only on Black and white mode printing.
Open the print dialog box. Select "Color Settings 1" - "Detail" from among the "Halftone" options.
    After changing the option on the printer driver, print and check the print image quality.
    If further image quality adjustments are still necessary, use the next procedure.
    For Windows
     PCL6       PS3      XPS      * This adjustment will have an effect only on Black and white mode printing.
    Open the property page of the printer driver. Press [Setting] in the "Image Quality" tab.
    Set the value for "Use Sharpness Filter" within a range of "1" to "4" in the "Image Attribute" tab.
    • Setting "4" provides the sharpest print image.
    * Initially, set "4" and check the printout. If further image quality adjustments are still necessary, refer to (4)
      to do this.
* Sharpness adjustment is not available when 1200 dpi is selected for PS3 printer driver.
    For Macintosh
       Mac     * This adjustment will have an effect only on Black and white mode printing.
    Open the print dialog box. Set the value for "Color Settings 2" - "Sharpness" within a range of "1" to "4."
    • Setting "+4" provides the sharpest print image.
    * Initially, set "4" and check the printout. If further image quality adjustments are still necessary, refer to (4)
      to do this.
    <Hint>          In addition to the sharpness adjustment, decreasing "Brightness" (moving to [-] side), changing
                    "Contrast" or increasing "Saturation" (moving to [+] side) may improve the image quality.
    After changing the option on the printer driver, print and check the print image quality.
    If further image quality adjustments are still necessary, use the next procedure.
PCL6 PS3 XPS Mac * This adjustment will have an effect only on Black and white mode printing.
(3) Select [05 ADJUSTMENT MODE]. Increase the value for code [8118] to perform fine adjustment and
    increase the sharpness intensity.
    • Adjust the value for [05] code corresponding to the print option to be applied (PDL and Color mode).
                                                                 Recommended                  Acceptable
        Color mode            [05] code       Sub code                                                              Default
                                                                        value                 value range
         Black and                                              Set a value lager than
                               05-8118            0/1/2                                           0 to 255            128
          White                                                          128
        Subcode           Original
           0                Text
           1              Graphic
           2               Image
    * Set the value in increments of approximately 5, while checking the printouts until the optimum value is
      obtained.
    <Note>        This adjustment changes the values set in the MFP. Therefore, it will affect every user who uses
                  the printer by connecting it to the MFP. After the adjustment, the values changed will be applied
                  to all printouts for the "Sharpness" option. Carefully perform the adjustment, being aware that
                  the image quality of all future printouts will be changed, when printing out originals other than
                  the one that is used for the adjustment.
PCL6 PS3 XPS * This adjustment will have an effect only on Auto or Color mode printing.
(4) Open the property page of the printer driver. Press [Setting] in the "Image Quality" tab.
    Mark the "Detail" checkbox in the "Color Balance" tab. Press [Edit].
    Set the value for the Low/Middle density of the color you would like to adjust, within a range of "1" to "4"
    in the "Color Balance Details" option.
    * This adjustment will have an effect only on printing on the Windows PCL6, XPS or PS3 emulation printer
      driver.
      (This adjustment cannot be performed on a Macintosh printer driver.)
    After changing the option on the printer driver, print and check the print image quality.
    If further image quality adjustments are still necessary, use the next procedure.
PCL6 PS3 XPS Mac * This adjustment will have an effect only on Black and white mode printing.
(5) Select [05 ADJUSTMENT MODE]. Increase the values for codes [7315 to 7320] or [7309 to 7310] to adjust
    the gamma curve balance and increase the density on Black and White mode printing.
    • Adjust the value for [05] code corresponding to the print option to be applied (PDL and Halftone).
    * Printing on Macintosh is performed in PostScript. (See the "PS3" row in the table below.)
                                                                                 Recommende              Acceptable
          PDL             Halftone           [05] code          Subcode                                                Default
                                                                                   d value               value range
                          Smooth               05-7315              0/1/2
                           Detail              05-7316              0/1/2
          PS3
                         Auto (Text)           05-7360              0/1/2
        (600dpi)
                       Auto (Graphic)          05-7361              0/1/2
                        Auto (Image)           05-7362              0/1/2
           PS3            Smooth               05-7309              0/1/2
        (1200dpi)          Detail              05-7310              0/1/2
                          Smooth               05-7317              0/1/2
                                                                                 Set a value larger
                           Detail              05-7318              0/1/2                                 0 to 255      128
                                                                                     than 128
         PCL6            Auto (Text)           05-7363              0/1/2
                       Auto (Graphic)          05-7364              0/1/2
                        Auto (Image)           05-7365              0/1/2
                          Smooth               05-7319              0/1/2
                           Detail              05-7320              0/1/2
          XPS            Auto (Text)           05-7366              0/1/2
                       Auto (Graphic)          05-7367              0/1/2
                        Auto (Image)           05-7368              0/1/2
    * Set the value in increments of approximately 10, while checking the printouts until the optimum value is
      obtained.
    * When the halftone is set to "Auto", the gamma balance can be adjusted for every print data format (Text,
      Graphic and Image).
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted.
    * Whether to fix or change the maximum density in a high-density area can be selected by the setting of 05-
      8066.
          Subcode                 Area where the density is adjusted
             0                             Low-density area
             1                           Medium-density area
             2                             High-density area
    <Note>      • This adjustment changes the values set in the MFP. Therefore, it will affect every user who
                  uses the printer by connecting it to the MFP. After the adjustment, the values changed will be
                  applied to all printouts for the "Halftone" option. (For instance, if the value for [05] code for PCL
                  and Detail is changed, it will be applied to printing performed with PCL6 and Halftone = "Detail"
                  (or "Auto") selected.) Carefully perform the adjustment, being aware that the image quality of all
                  future printouts will be changed, when printing out originals other than the one that is used for the
                  adjustment.
                • When "Mono" is selected from among the "Color" options and "Auto" (default) is selected from
                  among the "Halftone" options, "Detail" of the "Halftone" options is applied to text, and "Smooth" is
                  applied to raster data (images) and graphics(illustrations). Therefore, particular attention is required
                  since the adjustment may have a different impact according to the patterns of the image to be
                  printed.
    After increasing the density, print and check the print image quality.
    If further image quality adjustments are still necessary, use the next procedure.
Print Print
 The light-colored area becomes darker but the                     Only the light-colored area becomes darker.
 highly colored area becomes blurred.
 Explanation
When the entire image is printed darker to make the light-colored area darker, the highly colored area may
become much darker and blurred. To print only the light area in a higher density and leave the dark area as it is,
change the setting for the printer driver and adjust the background and color balance.
 Procedures
* Perform the adjustment in accordance with the procedures below.
* Both the service technician and the user can use procedure (1) and (3).
* Only the service technician must use procedures (2), (4) and (5).
* The item to set varies depending on the type of data to adjust. Select an effective option according to the data
 format to adjust, such as a print image (raster data), text (font), and line drawing (graphic data).
    For Windows
     PCL6       PS3      XPS      * This adjustment will have an effect only on Auto or Color mode printing.
(1) Open the property page of the printer driver and press [Setting] in the "Image Quality" tab. Set the
    "Background adjustment" option in the "Image Attribute" tab within the range of "1" to "4".
(2) Select [05 ADJUSTMENT MODE]. Increase the values for codes [8010] to [8019] to make the background
    density darker.
                                                                           Recommende              Acceptable
      Resolution       Halftone       Color mode          [05]code                                                   Default
                                                                             d value               value range
                                         Color             05-8010
                        Smooth         Twin color          05-8011
                                       Mono color          05-8012
         600dpi
                                         Color             05-8013
                         Detail        Twin color          05-8014         Set a value larger
                                                                                                       0 to 255         128
                                       Mono color          05-8015             than 128.
                                         Color             05-8016
                        Smooth
                                       Mono color          05-8018
         1200dpi
                                         Color             05-8017
                         Detail
                                       Mono color          05-8019
PCL6 PS3 XPS * This adjustment will have an effect only on Auto or Color mode printing.
(3) Open the property page of the printer driver. Press [Setting] in the "Image Quality" tab.
    Mark the "Detail" checkbox in the "Color Balance" tab. Press [Edit].
    Set the value for the Low/Middle density of the color you would like to adjust, within a range of "1" to "4"
    in the "Color Balance Details" option.
    * This adjustment will have an effect only on printing on a Windows PCL6 or PS3 or XPS emulation printer
      driver.
      (This adjustment cannot be performed on a Macintosh printer driver.)
    After changing the option on the printer driver, print and check the print image quality.
    If further image quality adjustments are still necessary, the service technician must use the next procedure
    according to the image type.
       • To adjust the color image:                    Go to procedure (4).
       • To adjust the black and white image:          Go to procedure (5).
PCL6 PS3 Mac * This adjustment will have an effect only on Auto or Color mode printing.
(4) Select [05 ADJUSTMENT MODE]. Increase the values for codes [8042 to 8065] or [8268 to 8275] to
    increase the Low/Middle density of the color.
    • Adjust the value for [05] code corresponding to the print option to be applied (PDL and Halftone).
      Ex.: • When printing on Windows is performed with the following options selected: PCL6, Image Quality
             Type = General, Halftone = Auto
                 > Text area, graphic area and image area
                    Change the values for Y: 05-8058, M: 05-8059, C: 05-8060 and K: 05-8061.
           • When printing on Macintosh is performed with the following option selected: Image Type =
             Photograph, Halftone = Smooth
                  > Change the values for Y: 05-8050, M: 05-8051, C: 05-8052 and K: 05-8053.
             * Printing on Macintosh is performed in PostScript. (See the "PS3" row in the table below.)
      Color to                                                                                               Acceptable
                     PDL          Halftone [05] code Subcode                  Recommended value                          Default
       adjust                                                                                                value range
                                   Smooth         05-8058          0/1
                    PCL5c
                                    Detail        05-8062          0/1
                      PS3          Smooth         05-8050          0/1
         Y          (600dpi)        Detail        05-8054          0/1
      (Yellow)        PS3          Smooth         05-8268          0/1
                   (1200dpi)        Detail        05-8272          0/1
                                   Smooth         05-8042          0/1
                     XPS
                                    Detail        05-8046          0/1
                                   Smooth         05-8059          0/1
                    PCL5c
                                    Detail        05-8063          0/1
                      PS3          Smooth         05-8051          0/1
        M           (600dpi)        Detail        05-8055          0/1
     (Magenta)        PS3          Smooth         05-8269          0/1
                   (1200dpi)        Detail        05-8273          0/1
                                   Smooth         05-8043          0/1
                     XPS
                                    Detail        05-8047          0/1
                                                                            Set a value larger than 128.      0 to 255       128
                                   Smooth         05-8060          0/1
                    PCL5c
                                    Detail        05-8064          0/1
                      PS3          Smooth         05-8052          0/1
          C         (600dpi)        Detail        05-8056          0/1
        (Cyan)        PS3          Smooth         05-8270          0/1
                   (1200dpi)        Detail        05-8274          0/1
                                   Smooth         05-8044          0/1
                     XPS
                                    Detail        05-8048          0/1
                                   Smooth         05-8061          0/1
                    PCL5c
                                    Detail        05-8065          0/1
                      PS3          Smooth         05-8053          0/1
         K          (600dpi)        Detail        05-8057          0/1
      (Black)         PS3          Smooth         05-8271          0/1
                   (1200dpi)        Detail        05-8275          0/1
                                   Smooth         05-8045          0/1
                     XPS
                                    Detail        05-8049          0/1
    * Set the value in increments of approximately 20, while checking the printouts until the optimum value is
      obtained.
    * "Halftone" refers to how halftones are printed. Two options are available: "Smooth" which is intended to
      improve the reproducibility of gradation and "Detail" which is intended to print halftones in details (with
      the high frequency).
      The halftone option to be applied in printing can be selected from among the "Halftone" options on the
      printer driver (Windows) or in the print dialog box (Macintosh).
      "Auto" is selected from among the "Apply to" options by default. It is intended to automatically select
      "Smooth" or "Detail" in accordance with "Apply to" of the halftone option, the selected "Color" and
      "Image Quality Type" options, as described in the table below.
                                                  "Color" and "Image Quality Type" options
             Apply to                                 Auto/Color                   Black and                        Twin
                                 General       Photograph Presentation Line Art      White                          Color
                  Text                Detail         Detail         Detail          Detail          Detail          Detail
                Graphic
                                     Smooth         Smooth         Smooth           Detail         Smooth          Smooth
        (Illustration, line, etc.)
               Image
                                     Smooth         Smooth         Smooth           Detail         Smooth          Smooth
          (Photograph, etc.)
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set
      the subcode for the area to be adjusted.
    * Whether to fix or change the maximum density in a high-density area can be selected by the setting of 05-
      8066.
          Subcode                Area where the density is adjusted
             0                            Low-density area
             1                          Medium-density area
             2                            High-density area
    <Note>        This adjustment changes the values set in the MFP. Therefore, it will affect every user who uses
                  the printer by connecting it to the MFP. After the adjustment, the values changed will be applied
                  to all printouts for the "Image Quality Type" and "Halftone" options. (For instance, if the value
                  for [05] code for PCL6 and Smooth is changed, it will be applied to printing performed with
                  PCL6 and Halftone = "Smooth" (or "Auto") selected.) Carefully perform the adjustment, being
                  aware that the image quality of all future printouts will be changed, when printing out originals
                  other than the one that is used for the adjustment.
PCL6 PS3 XPS Mac * This adjustment will have an effect only on Black and white mode printing.
(5) Increase the values for codes [7315 to 7320] or [7309 to 7310] to adjust the gamma curve balance and
    increase the Low/Medium density on Black and White mode printing.
    • Adjust the value for [05] code corresponding to the print option to be applied (PDL and Halftone).
    * Printing on Macintosh is performed in PostScript. (See the "PS3" row in the table below.)
                                                                          Recommended                  Acceptable
           PDL        Halftone          [05] code       Subcode                                                         Default
                                                                              value                    value range
            PS3        Smooth            05-7315           0/1/2
          (600dpi)      Detail           05-7316           0/1/2
            PS3        Smooth            05-7309           0/1/2
         (1200dpi)      Detail           05-7310           0/1/2           Set a value larger
                                                                                                          0 to 255         128
                       Smooth            05-7317           0/1/2               than 128
          PCL6
                        Detail           05-7318           0/1/2
                       Smooth            05-7319           0/1/2
           XPS
                        Detail           05-7320           0/1/2
                                                                          Recommended                  Acceptable
           PDL        Apply to          [05] code       Subcode                                                         Default
                                                                              value                    value range
                         Text            05-7360           0/1/2
           PS3         Graphic           05-7361           0/1/2
                        Image            05-7362           0/1/2
                         Text            05-7363           0/1/2
                                                                           Set a value larger
          PCL6         Graphic           05-7364           0/1/2                                          0 to 255         128
                                                                               than 128
                        Image            05-7365           0/1/2
                         Text            05-7366           0/1/2
           XPS         Graphic           05-7367           0/1/2
                        Image            05-7368           0/1/2
    * Set the value in increments of approximately 10, while checking the printouts until the optimum value is
      obtained.
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted.
          Subcode             Area where the density is adjusted
               0                          Low-density area
               1                        Medium-density area
               2                         High-density area
    <Note>      • This adjustment changes the values set in the MFP. Therefore, it will affect every user who
                  uses the printer by connecting it to the MFP. After the adjustment, the values changed will be
                  applied to all printouts for the "Halftone" option. (For instance, if the value for [05] code for PCL
                  and Detail is changed, it will be applied to printing performed with PCL6 and Halftone = "Detail"
                  (or "Auto") selected.) Carefully perform the adjustment, being aware that the image quality of all
                  future printouts will be changed, when printing out originals other than the one that is used for the
                  adjustment.
                • When "Mono" is selected from among the "Color" options and "Auto" (default) is selected from
                  among the "Halftone" options, "Detail" of the "Halftone" options is applied to text and graphics
                  (illustrations), and "Smooth" is applied to raster data (images). Therefore, particular attention is
                  required since the adjustment may have a different impact according to the patterns of the image to
                  be printed.
   Thin lines or double lines are dotted on the                       The thin lines or double lines are clearly
   printout.                                                          printed out.
 Explanation
When thin lines or double lines, which are laid out on a solid filled area, are printed out, they may be dotted on
the printout. Change the option on the printer driver, setting for emphasizing thin lines, in order to clearly print
them out.
 Procedures
* Follow the procedure below to perform the adjustment. However, the service technician shall judge whether or
 not the adjustment is to be performed in conjunction with the printer driver setting in step (1) and the [08] code
 setting in step (4) after checking the printed image.
* Both the service technician and the user can use procedure (1).
* Only the service technician must use procedures (2), (3) and (4).
(1) Enable the "Distinguish Thin Line" option on the printer driver.
    For Windows
     PCL6       PS3      XPS
    Open the property page of the printer driver. Press [Setting] in the "Image Quality" tab.
    Mark the "Distinguish Thin Line" checkbox in the "Basic" tab.
For Macintosh
       Mac
    Open the print dialog box. Enable the "Print Mode" - "Distinguish Thin Line" option.
    After changing the setting on the printer driver menu, print the image and check its image quality.
    If further image quality adjustment is necessary, the service technician shall use the following procedure
    because the color of the text of the original file may not be set as black:
(2) Select [05 ADJUSTMENT MODE]. Increase the setting value of the code [8242] to increase the density
    level of thin lines by emphasizing them.
                                                                                                  Acceptable
           PDL            Color            [05] code   Subcode       Recommended value                            Default
                                                                                                  value range
           PS3             Black                          0          Set value larger than 3                          3
                                           05-8242                                                   0 to 5
        (1200dpi)          Color                          1          Set value larger than 1                          1
    <Note>        When the setting value of the color adjustment is increased, thin lines in light colors in printing
                  at 1200 dpi may turn out darker than at 600 dpi.
                  For example, when a 3D object such as Word Art is printed at 1200 dpi, the border lines may
                  become darker.
    After setting the value, print the image and check its image quality.
    If further image quality adjustment is necessary, use the following procedure:
(3) Select [05 ADJUSTMENT MODE]. Change the setting value of the code [8243] to adjust a range for
    emphasizing thin lines.
                                                                                                  Acceptable
           PDL            Color            [05] code   Subcode       Recommended value                            Default
                                                                                                  value range
                      Black (Min.)                        0        Set value larger than 1                           1
           PS3        Black (Max.)                        1      Set value smaller than 200                         200
                                           05-8243                                                  0 to 255
        (1200dpi)     Color (Min.)                        2        Set value larger than 1                           1
                      Color (Max.)                        3      Set value smaller than 255                         255
    After changing the value, perform printing and check the image quality.
    If further image quality adjustments are necessary, follow the next step. However, the service technician
    shall judge whether or not the adjustment is to be performed in conjunction with the settings in steps (1) to
    (3).
(4) Select [08 SETTING MODE]. Change the value for code [2548] to make the outline of the copied text
    thicker and clearer, or thinner and finer.
    * This adjustment can be made applicable to all colors by selecting the corresponding subcode. However, it
      is recommended to enter the same setting value for all the subcodes unless otherwise required.
                                                                                                 Acceptable
          Setting item              [08] code     Subcode          Recommended value                                 Default
                                                                                                 range value
                             Y                        0          To make the outline of text
                                                                 thicker and clearer:
    Potential on printing    M                        1          Set a value smaller than 5.
        white text /                    08-2548                                                      0 to 12                6
     Correction setting      C                        2          To make the outline of text
                                                                 thinner and finer:
                             K                        3          Set a value larger than 5.
    * To check the amount changed with this setting, it is recommended to set the value at "3" or "4" first to
      decrease it, and then to set the value at "8" or "9" first to increase it. Then check the copy image and
      increase or decrease the value further so that the image will be adjusted finely.
• In some consumption conditions, background fogging or a decrease in the amount of developer material (carrier
 streaks) may occur. Therefore, carefully perform the adjustment while checking the printed image.
 Remarks
If you perform only step (4) above (changing the setting value of the code [08-2548]) as an image quality
adjustment for a certain color, it may cause an extra increase or decrease in the amount of the toner used for this
color compared with that for the other colors, or it may create a difference in the reproducibility of halftones.
 Explanation
This product offers a toner save mode. It is intended to automatically decrease the image density and reduce the
amount of toner used. Change the option on the printer driver and perform printing in the toner save mode, for
instance, if a large number of copies have to be printed, or if the image density is too high.
 Procedures
* Both the service technician and the user can perform all adjustments.
    For Windows
      PCL6      PS3       XPS
Open the property page of the printer driver. Mark the "Toner Save" checkbox in the "Others" tab.
For Macintosh
       Mac
    Open the print dialog box. Enable the "Color Settings 1" - "Toner Save" option.
 Remarks
The print density in the toner save mode can also be adjusted. For further information regarding the adjustment
procedures, refer to 3.18 To Adjust the Image Density in the Toner Save Mode.
   The image density is too dark, even when                        The image density in the toner save mode
   printing is performed in the toner save                         is adjustable, as desired.
   mode.
 Explanation
The product offers a toner save mode. It is intended to automatically decrease the image density and reduce the
amount of toner used. Adjust the upper limit of the image density in the toner save mode, in order to obtain the
desired image density requested by a particular user.
 Procedures
* The service technician must perform all adjustments.
(1) Select [05 ADJUSTMENT MODE]. Change the value to adjust the image density in the toner save mode.
    * The [05] code to use varies, depending on whether to adjust the image quality on Full Color or Twin Color
      printing or on Black and White printing. Use either of the procedures below corresponding to the type of
      original to print.
    * The "Color" options are available in the "Basic" tab on the PCL6, PS3 and XPS printer drivers. The
      "Color Type" options are available in the "Color Settings 1" menu in the print dialog box on Macintosh.
    (a) Select [05 ADJUSTMENT MODE]. Change the value for codes [8160] or [8161] to adjust the upper limit
         of the image density in the toner save mode.
         * Printing on Macintosh is performed in PostScript. (See the "PS3" row in the table below.)
                                                                    Recommended             Acceptable
          Resolution        PDL      [05] code     Subcode                                                   Default
                                                                        value               value range
     * The "Color" options are available in the "Basic" tab on the PCL6, PS3 and XPS printer drivers. The
      "Color Type" options are available in the "Color Settings 1" menu in the print dialog box on Macintosh.
     (a) Select [05 ADJUSTMENT MODE]. Increase the value for codes [7307] or [7302] to adjustment the upper
        limit of the image density in the toner save mode.
        * Printing on Macintosh is performed in PostScript. (See the "PS3" row in the table below.)
                                                                      Recommended             Acceptable
         Resolution        PDL        [05] code      Subcode                                                   Default
                                                                          value               value range
 Gray, yellow and cyan text is illegible on the                    The gray, yellow or cyan text is printed in
 printouts.                                                        black. This makes it more legible on the
                                                                   printouts.
 Explanation
Text may look illegible on the printout, depending on the hues of the background and the text contained in the
original, particularly, when printing an original containing yellow, light blue or gray text on a light-colored
background. In addition, when a full-color original is printed in the Black and White mode, the colored text may
turn gray on the printout and eventually become illegible. In this case, change the option on the printer driver, in
order to reproduce the colored text (except the white text) in black and make it more legible on the printout.
* This adjustment will have an effect only on printing on a Windows PCL6 or PS3 or XPS emulation printer
 driver.
 (This adjustment cannot be performed on a Macintosh printer driver.)
 Procedures
* Both the service technician and the user can perform all adjustments.
(1) Open the property page of the printer driver. Press [Setting] in the "Image Quality" tab.
    Mark the "Use Black for All Text" checkbox in the "Basic" tab.
    * This adjustment will be effective, only if a file created on a general application, such as Microsoft Office,
      is printed in PostScript (PS3). It may not be effective, if a file created on a graphic application (e.g.
      Illustrator) or a DTP application (e.g. QuarkXPress) is printed, or a PDF file created on these applications
      is printed.
 Remarks
Not all colored text may be printed in black, depending on the type of text (e.g. text larger than 72 points).
 Explanation
Some applications may be designed to automatically insert blank pages for laying out the pages of a document.
Change the option on the printer driver, in order to ignore all blank pages for printing.
 Procedures
* Both the service technician and the user can perform all adjustments.
(1)Enable the "Do not Print Blank Pages" option on the printer driver.
    For Windows
     PCL6       PS3      XPS
    Open the property page of the printer driver. Mark the "Do not Print Blank Pages" checkbox in the "Others"
    tab.
    For Macintosh
       Mac
Open the print dialog box. Enable the "Print Mode" - "Do not Print Blank Pages" option.
 Remarks
If any data are inserted in the header or footer of a particular page on Excel or Word, even though no data are
present in the body, the page will not be recognized as a blank page. The header or footer will be printed out.
 Text looks black on the monitor. But the hue                        The hue of the text is nearly matched with the
 will vary, if it is printed out in the Full color                   black hue on the monitor.
 mode.
 Explanation
Text looks black on the monitor. But if it is printed in the Full color mode (with "Auto" selected from among the
"Color" options), all color toners (C, M, Y and K) will be used to print it, depending on the application in use.
As a result, the black hue on the printout looks different from what the user desires. This problem is caused by
the application specifications, not by the printer.
Particularly, the following factors may print black text using all color toners (C, M, Y and K) when a PDF file is
printed out:
  • The file of black text (CMY = 0%, K = 100%) is printed on the PCL6 printer driver.
  • Black text is treated as image data instead of text data on the file.
  • Black text is not defined as 100% black (RGB = 0% or CMY = 0%, K = 100%) on the file.
Change the option on the printer driver or adjust the color balance, in order to nearly match the hue of the black
text on the file, in which these factors may be included, with the black hue.
As a point to remember, determine whether the text to adjust is entered as an actual text (font) or as a graphic or
image data.
 Procedures
* Perform the adjustment in accordance with the procedures below.
* Both the service technician and the user can use procedures (1), (2), (4) and (5).
* Only the service technician must use procedures (3) and (6).
(1) If printing is performed on a PCL6 printer driver, select a PS3 printer driver.
    <Hint>       If printing is performed on a PCL6 printer driver, or if a file or a graphic application created on a
                 DTP application, such as Illustrator, QuarkXPress, FreeHand, or CorelDraw, is printed using the
                 CMYK toners, or a high-definition PDF file created on these applications is printed, black text
                 may not be converted into 100% black. But if printing is performed on a PS3 printer driver,
                 black text can be printed in black, as shown on the file.
    After printing on the PS3 driver, print and check the print image quality.
    If further image quality adjustments are still necessary, use the next procedure.
(2) Mark the "Pure Black" checkbox on the printer driver. Select "Text, Graphic & Image" from among the
    "Apply to" options.
    <Hint>       Text on the Web page may be raster data (image) created in GIF or JPEG format. Black-and-white
                 data created in PDF format by scanning the original are also raster data. If the "Pure Black"
                 checkbox is marked on the printer driver, "Auto" is selected from among the "Apply to" options by
                 default. Raster data are handled as an image, which is intended to improve the texture, and the 4
                 color toners (C, M, Y and K) will be used to print black. If "Text, Graphic & Image" is selected
                 from among the "Apply to" options, only the K toner will be used to print black on raster data.
    For Windows
      PCL6      PS3      XPS     * This adjustment will have an effect only on Black and white mode printing.
    Open the property page of the printer driver. Press [Setting] in the "Image Quality" tab.
    Mark the "Pure Black" checkbox in the "Basic" tab. Select "Text, Graphic & Image" from among the
    "Apply to" options.
    For Macintosh
      Mac      * This adjustment will have an effect only on full-color printing.
    Open the print dialog box. Select "Color Settings 1" - "Black – Text, Graphic and Image" from among the
    "Pure Black and Gray" options.
    After changing the option on the printer driver, print and check the print image quality.
    If further image quality adjustments are still necessary, use the next procedure.
PCL6 PS3 XPS Mac * This adjustment will have an effect only on Black and white mode printing.
(3) Select [05 ADJUSTMENT MODE]. Change the values for codes [8210 to 8212] or [8249 to 8254] to adjust
    the threshold values for "Pure Gray" and "Pure Black" (to adjust the area to print only using the K toner).
    • Adjust the value for [05] code corresponding to the print option to be applied (Apply to, PDL, Item,
      Subcode (Image quality type)).
* Printing on Macintosh is performed in PostScript. (See the "PS3" row in the table below.)
                                                                                                  Acceptable
     Apply to       PDL       [05] code       Subcode           Recommended value                   value              Default
                                                                                                    range
                    PCL6       05-8210          0/1/2/3                                                                8/8/8/8
        Text         PS3       05-8252         0/1/2/3/4       Set a value smaller than                               8/8/8/8/8
                    XPS        05-8249         0/1/2/3/4       the default to decrease                                8/8/8/8/8
                                                               the area to print only
                    PCL6       05-8211          0/1/2/3        using the K toner.                                      1/1/1/8
      Graphics       PS3       05-8253         0/1/2/3/4                                             1 to 255         1/1/1/8/1
                    XPS        05-8250         0/1/2/3/4       Set a value larger than                                1/1/1/8/1
                                                               the default to increase the
                    PCL6       05-8212          0/1/2/3        area to print only using                                1/1/1/8
        Image        PS3       05-8254         0/1/2/3/4       the K toner.                                           1/1/1/8/1
                    XPS        05-8251         0/1/2/3/4                                                              1/1/1/8/1
    * The subcode varies according to the Image quality type where the adjustment is performed. Refer to the
      table below and set the subcode for the Image quality type to adjust.
    <Note>             If the graphic and image options are changed, the adjustment may possibly cause the
                       unnatural hue of gradational and photo images, and the inadequate reproducibility of
                       gradations. Therefore, carefully perform the adjustment, while checking the printouts.
(4) Open the property page of the printer driver. Press [Setting] in the "Image Quality" tab.
    Mark the "Use Black for All Text" checkbox in the "Image Quality" tab.
    * This adjustment will have an effect only on printing on a Windows PCL6 or PS3 or XPS emulation printer
      driver.
      (This adjustment cannot be performed on a Macintosh printer driver.)
    * This adjustment will be effective, only if a file created on a general application, such as Microsoft Office,
      is printed in PostScript (PS3). It may not be effective, if a file created on a graphic application (e.g.
      Illustrator) or a DTP application (e.g. QuarkXPress) is printed, or a PDF file created on these applications
      is printed.
    After changing the option on the printer driver, print and check the print image quality.
    If further image quality adjustments are still necessary, the service technician must use the next procedure,
    because text may not be defined as 100% black on the file.
  PCL6      PS3      XPS     * This adjustment will have an effect only on Auto or Color mode printing.
(5) Open the property page of the printer driver and press [Setting] in the "Image Quality" tab. Mark the
    "Detail" checkbox in the "Color Balance" tab and then press [Edit].
    • Set the value for the Low/Medium density of the color you would like to adjust within a range of "1" to "4"
      in the "Color Balance Details" option.
    * This adjustment will have an effect only on printing on the Windows PCL6, PS3 or XPS emulation printer
      driver. (This adjustment cannot be performed on a Macintosh printer driver.)
After changing the option on the printer driver, print and check the print image quality.
If further image quality adjustments are still necessary, use the next procedure.
  PCL6      PS3      XPS       Mac     * This adjustment will have an effect only on Black and white mode printing.
(6) Select [05 ADJUSTMENT MODE]. Change the values for codes [8042 to 8065] or [8268 to 8275] to adjust the color
    density (Color balance).
    • Adjust the value for [05] code corresponding to the print option to be applied (PDL and Halftone).
      Ex.: • When printing on Windows is performed with the following options selected: PCL6, Image Quality
             Type = General, Halftone = Auto
                 > Text area, graphic area and image area
                    Change the values for Y: 05-8058, M: 05-8059, C: 05-8060 and K: 05-8061.
          • When printing on Macintosh is performed with the following option selected: Image Type =
            Photograph, Halftone = Smooth
                 > Change the values for Y: 05-8050, M: 05-8051, C: 05-8052 and K: 05-8053.
            * Printing on Macintosh is performed in PostScript. (See the "PS3" row in the table below.)
    * The hue of the black text printed using all color toners (C, M, Y and K) will look much clearer, if the amount
      of the C (cyan) toner used is larger than the M (magenta) or Y (yellow) toner. Remember that adjusting the
      density of K (black) does not affect the hue of the black text, if all color toners are used to print the text.
    * "Halftone" refers to how halftones are printed. Two options are available: "Smooth" which is intended to
      improve the reproducibility of gradation and "Detail" which is intended to print halftones in details (with
      the high frequency).
      The halftone option to be applied in printing can be selected from among the "Halftone" options on the
      printer driver (Windows) or in the print dialog box (Macintosh).
      "Auto" is selected from among the "Apply to" options by default. It is intended to automatically select
      "Smooth" or "Detail" in accordance with "Apply to" of the halftone option, the selected "Color" and
      "Image Quality Type" options, as described by the table below.
                                                   "Color" and "Image Quality Type" options
              Apply to                                 Auto/Color                   Black and                      Twin
                                   General       Photograph Presentation Line Art     White                        Color
                  Text                 Detail         Detail        Detail         Detail          Detail          Detail
                Graphic
                                      Smooth         Smooth        Smooth          Detail         Smooth          Smooth
        (Illustration, line, etc.)
                Image
                                      Smooth         Smooth        Smooth          Detail         Smooth          Smooth
           (Photograph, etc.)
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted.
          Subcode             Area where the density is adjusted
               0                          Low-density area
               1                        Medium-density area
               2                         High-density area
    <Note>      • This adjustment changes the values set in the MFP. Therefore, it will affect every user who
                  uses the printer by connecting it to the MFP. After the adjustment, the values changed will be
                  applied to all printouts for the "Image Quality Type" and "Halftone" options. (For instance, if
                  the value for [05] code for PCL6 and Smooth is changed, it will be applied to printing
                  performed with PCL6 and Halftone = "Smooth" (or "Auto") selected.) Carefully perform the
                  adjustment, being aware that the image quality of all future printouts will be changed, when
                  printing out originals other than the one that is used for the adjustment.
 Remarks
    As a result, text, which should be defined as 100% black on the application, is not defined as 100% black on
    the saved PDF file. (A small percent of color data is defined.) Eventually, all color toners (C, M, Y and K)
    will be used to print it.
    If printing is performed on a PCL6 printer driver, print data are captured as RGB data. If black text is
    defined as 100% black (CMY=0%, K = 100%) for CMYK data on a PDF file, it will not be converted into
    100% black (RGB = 0%) for RGB data on Acrobat, and it will be printed in colors. (It is recommended to
    print CMYK data on a PS3 printer driver instead of a PCL6 printer driver.)
    Use "Output Preview" on Acrobat Professional to examine the color definition on the PDF file.
    * For further information regarding the Output Preview, refer to an appropriate manual or the Help menu of
      Acrobat Professional.
(3)
(4)
The dark toner comes off. The dark toner is securely fixed.
 Explanation
When highly colored lines, where a large accumulated amount of C, M, Y and K toners are used, are created on
raster data (image), such as BMP, GIF, JPEG and TIFF, and printed on the rough surface of paper or thick paper,
the toner may come off the paper. This is because the C, M, Y and K toners may be overlaid, the paper may be
extremely thick or the surface may be rough, and the amount of toner used may be insufficient. Adjust the limit
value of the maximum amount of toner used, in order to avoid a toner fixing problem.
This adjustment does not affect a single color of C, M, Y and K, or bright colors such as red and green.
 Procedures
* The service technician must perform all adjustments.
PCL6 PS3 XPS Mac * This adjustment will have an effect only on Auto or Color mode printing.
(1) Select [05 ADJUSTMENT MODE]. Decrease the values for codes [8070/8071] or [8089/8090] to reduce
    the limit value of the maximum amount of toner used.
    • Adjust the value for [05] code corresponding to the print option to be applied (Paper type and Halftone).
* Printing on Macintosh is performed in PostScript. (See the "PS3" row in the table below.)
                                                             Subcode
                                                                                          Recom           Acceptable
                                       [05]                      e-STUDIO
      Resolution       Halftone                     e-STUDIO                              mended            value        Default
                                       Code                      2505/3505/
                                                     2000AC                                value            range
                                                                 4505/5005
                                                        0 to                                 Set a
                         Smooth       05-8071                       0 to 12
                                                    4/7/8/11/12                             value
         600dpi                                                                            smaller           0 to 255      128
                                                        0 to
                           Detail     05-8070                             0 to 12          than the
                                                    4/7/8/11/12
                                                                                           default.
                                                        0 to                                 Set a
                         Smooth       05-8090                             0 to 12
                                                    4/7/8/11/12                             value
        1200dpi                                                                            smaller           0 to 255      128
                                                        0 to
                           Detail     05-8089                             0 to 12          than the
                                                    4/7/8/11/12
                                                                                           default.
    * Set the value in increments of approximately 30, while checking the printouts until the optimum value is
      obtained.
 Explanation
The option to obtain the desired print image quality can be registered as Custom Color Settings.
* This adjustment will have an effect only on printing on a Windows PCL6 or PS3 or XPS emulation printer
  driver.
  (This adjustment cannot be performed on a Macintosh printer driver.)
 Procedures
* Both the service technician and the user can perform all adjustments.
* As an example of using Customer Color Settings, if "Presentation" is selected as the base type from among the
  "Image Quality Type" options, the procedure below is to set a larger value for the Middle density of the color in
  the "Color Balance Details" option, and register the name of "Draft agenda."
      Ex:   Mark the "Detail" checkbox in the "Color Balance" tab. Press [Edit].
            Set the value for the Middle density of the color in the "Color Balance Details" option.
(2) Register the name for what has been specified in procedure (1), in the "Basic" tab in the "Setting" option.
    • Use steps (a) to (c) to register the name.
         (a) Mark the "Save Current setting as" checkbox in the "Custom Color Settings" option.
         (b) Enter an optional name in the "Name" option.
         (c) Select the type you would like to use as the base one from among the "Image Quality Type" options
            in "Original Image Quality Type."
                                             (a)
                                                              (b)
(c)
    After registering the name, open the property page of the printer driver. Make sure that the name created for
    the "Image Quality Type" option in the "Image Quality" tab has been registered.
    * The icon of the base "Image Quality Type" will be displayed in the background of the icons for the
      registered Custom Color Settings.
      (The icon of "Presentation" is displayed in the background as illustrated below.)
 Remarks
The checkbox in the "Custom Color Settings" option will be effective, only if you login using a user name
belonging to Administrator or Power Users (only on Windows NT4.0 / 2000 / XP / Vista / Server 2003), and
open the property page of the printer driver in the "Printers and Faxes" folder.
  The original is printed in the Full color mode.                  The areas other than black is printed in the
                                                                   same color (Red).
 Explanation
Select the twin color print mode option, in order to change colored text and lines on full-color original and print
out the original.
* The gradation reproduction for twin-color print can be switched by means of the following self-diagnostic code.
Enter [05 ADJUSTMENT MODE] and change the setting value for the code [8002].
   [05] Code      Setting value                          Contents                                         Default
                              0            Gradation reproduction priority (The gradation ability of
       8002                                an original such as a photo becomes more emphasized.)              0
                                           Text reproduction priority (Text or lines can be printed
                              1
                                           more clearly.)
* The Twin Color mode is not available when 1200 dpi is selected for the PS3 printer driver.
 Procedures
* The procedure to use varies depending on whether "To Adjust Colors", "To Adjust the Sharpness" or "To Print a
 Full-Color Original in Two Colors". Refer to the procedure corresponding to the particular user’s request.
(1) Select "Twin Color" from among the "Color" options on the printer driver.
    For Windows
       PCL6      PS3       XPS
      Open the property page of the printer driver. Select "Twin Color" from among the "Color" options in the
      "Basic" tab. Press [Details]. Select the color to be used for the area other than black, from among the
      "Color" options.
    For Macintosh
      Mac
Open the print dialog box. Select "Twin color (Black & ***)" from among the "Color Type" options.
    After selecting these options, print and check the print image quality.
    If further image quality adjustments are still necessary, the service technician must use the next procedure
    according to the image quality problem the user has.
       • To obtain a shaper or softer print image:                     Go to procedure (2).
       • To make only the light-colored area darker:                   Go to procedure (3).
    For Windows
      PCL6       PS3      XPS     * This adjustment will have an effect only on Auto or Color mode printing.
      Open the property page of the printer driver. Press [Setting] in the "Image Quality" tab. Change the option
      in the "Color Balance" tab.
    * Set the value, while checking the printouts until the optimum value is obtained.
    - "Color Balance" tab: Change the "All Colors" or "Each Color" option.
    - To make detailed setting, you can set it by marking "Detail" checkbox. (Same as Auto color or Full color
      mode)
(3) Select [05 ADJUSTMENT MODE]. Change the values for codes [8023 to 8041] to adjust the color density.
    - Adjust the value for the [05] code corresponding to the print option to be applied (color selected in the
      “Twin Color” option).
       Ex.: When printing is performed with the following options selected: “Color” option = “Twin Color”,
           “Details” option = “Red”
            Adjust the values for the following [05] codes: [8033] for Y (Yellow), [8034] for M (Magenta) and
            [8023] for K (Black)
                                                                                   Acceptable
       Selected                         [05]       Sub       Recommended
                       Halftone                                                      value           Default
        color                           code       code          value
                                                                                     range
                     Y(Yellow)        05-8033      0/1/2
          Red        M(Magenta)       05-8034      0/1/2
                      C(Cyan)         05-8035      0/1/2
                     Y(Yellow)        05-8036      0/1/2
         Green       M(Magenta)       05-8037      0/1/2
                      C(Cyan)         05-8038      0/1/2
                     Y(Yellow)        05-8039      0/1/2
                                                             Set a value larger
          Blue       M(Magenta)       05-8040      0/1/2
                                                             than 128 to
                      C(Cyan)         05-8041      0/1/2     increase the
                     Y(Yellow)        05-8024      0/1/2     density.
          Cyan       M(Magenta)       05-8025      0/1/2                              0 to 256          128
                                                             Set a value
                      C(Cyan)         05-8026      0/1/2     smaller than 128
                     Y(Yellow)        05-8027      0/1/2     to decrease the
        Magenta      M(Magenta)       05-8028      0/1/2     density.
                      C(Cyan)         05-8029      0/1/2
                     Y(Yellow)        05-8030      0/1/2
         Yellow      M(Magenta)       05-8031      0/1/2
                      C(Cyan)         05-8032      0/1/2
      Red/Green/
      Blue/Cyan/
                       K(Black)       05-8023      0/1/2
       Magenta/
       Yellow
    * Set the value in increments of approximately 20, while checking the printouts until the optimum value is
      obtained.
    * The color to be adjusted varies according to the color (color to be used for the area other than black)
      selected in the Twin-color mode. Refer to the table below and select the color to be adjusted.
                                                      Color to be adjusted
         Selected color
                                    Y (Yellow)             M (Magenta)                  C (Cyan)
                Red                                              
              Green                                                                        
               Blue                                                                        
               Cyan                                                                         
             Magenta                                              
              Yellow                     
    * "Halftone" refers to how halftones are printed. Two options are available: "Smooth" which is intended to
      improve the reproducibility of gradation and "Detail" which is intended to print halftones in detail (with the
      high frequency).
      The halftone option to be applied in printing can be selected from among the "Halftone" options on the
      printer driver (Windows) or in the print dialog box (Macintosh).
      "Auto" is selected from among the "Apply to" options by default. It is intended to automatically select
      "Smooth" or "Detail" in accordance with "Apply to" of the halftone option, the selected "Color" and
      "Image Quality Type" options, as described by the table below.
                                            "Color" and "Image Quality Type" options
         Apply to                              Auto/Color                     Black and                        Twin
                          General       Photograph Presentation Line Art         White                         Color
            Text           Detail         Detail         Detail       Detail     Detail                        Detail
          Graphic
       (Illustration,      Smooth          Smooth             Smooth            Detail        Smooth          Smooth
         line, etc.)
           Image
       (Photograph,        Smooth          Smooth             Smooth            Detail        Smooth          Smooth
            etc.)
    * The subcode varies depending on the area where the density is adjusted. Refer to the table below and set
      the subcode for the area to be adjusted.
           Subcode            Area where the density is adjusted
              0                        Low-density area
              1                      Medium-density area
                                                                             05-8066-0: The maximum color density
                                                                             in a high-density area is fixed.
                2                         High-density area
                                                                             05-8066-1: The maximum color density
                                                                             in a high-density area is changed.
    <Note>       This adjustment changes the values set in the MFP. Therefore, it will affect every user who uses
                 the printer by connecting it to the MFP. After the adjustment, the values changed will be applied
                 to all printouts for the "Image Quality Type" and "Halftone" options. (For instance, if the value
                 for [05] code for Smooth is changed, it will be applied to printing performed with Halftone =
                 "Smooth" (or "Auto") selected.) Carefully perform the adjustment, being aware that the image
                 quality of all future printouts will be changed, when printing out originals other than the one that
                 is used for the adjustment.
(1) Select "Twin Color" from among the "Color" options on the printer driver.
For Windows
For Windows
                                                                                        Acceptable
       Color mode           [05]code      Subcode        Recommended value                                    Default
                                                                                        value range
                                                        The larger the value is, the
         Twin color          05-8108         0/1/2          sharper the image               0~255                128
                                                                becomes.
    * Set the value in increments of approximately 30, while checking the printouts until the optimum value is
      obtained.
     <Note> • When the setting value of this code is changed to “0”, the sharpness adjustment on the
                  Windows menu is also changed to OFF automatically.
                  • When the setting value of this code is larger than "128" (default), the level of the sharpness
                  intensity is equivalent to the one when the value is set within a range of "0" to "+4" on the printer
                  driver menu. When the setting value of this code is smaller than "128", the level of the sharpness
                  intensity is equivalent to the one when the value is set within a range of "-4" to "-1" on the
                  printer driver menu. Note that when the setting value of this code is "0", the image quality will
                  not be changed even if the value is changed on the printer driver menu.
To adjust the boundary between black and colors other than black
(1) Select [05 ADJUSTMENT MODE]. Change the values for codes [8213 to 8215] to adjust the boundary
    between black and colors other than black.
    * As the set value is increased, the area of "CHANGE BLACK TO" will become larger. On the other hand, if
      the value is decreased, the area of "SECOND COLOR" will become larger.
                                                                       Acceptable
       Apply to       [05] code         Recommended value                                   Default
                                                                       value range
          Text           8213                                                                   8
                                         Increase the set value to
        Graphic          8214                                             1 to 255              1
                                          enlarge the black area.
         Image           8215                                                                   1
 Explanation
To interchange color images among several devices and reproduce precise color balance of the obtained images
on each device, ICC profiles are generally used. This section introduces setting items that become available with
the use of ICC profiles.
This function is available only for PS3 and XPS printer drivers of Windows and a PS3 printer driver of
Macintosh.
 Procedures
* The setting procedure differs depending on how the user wants to use ICC profiles. Follow the most suitable
 procedure referring to the subsections " To Create ICC Profiles for Printing on the Paper to be Used ", "To Print
 Precise Colors Using Existing RGB Source ICC Profiles", "To Perform Simulated Printing with CMYK Inks of
 Each Ink Manufacturer", "To Print Using Custom RGB Profiles", "To Convert Colors with Specified Source
 ICC Profiles (Not Using Embedded ICC Profiles)" or "To Perform Further Adjustment After Using ICC
 Profiles", according to the request from the user.
 Explanation
To create a new printer profile to be used when "Advanced" is selected in the "Image Quality Type" option, patch
printing for the printer must be performed but some users have difficulty to select the correct setting items on the
printer driver menu. To create a proper ICC profile with the correct print image, the suitable setting items must
be selected.
 Procedures
* Both the service technician and the user can perform all settings.
PS3 XPS
(1) Open the Properties page of the printer driver and then select the paper type on the "Paper Type" option on the
    "Basic" tab menu.
       PS3      XPS
(2) Select "Advanced" in the "Image Quality Type" option on the "Image Quality" tab menu and then click [Setting]. "
       PS3      XPS
(3) Select the desired type of halftone on the "Halftone" option on the "Basic" tab menu.
    * It is not recommended to select "Auto" on this option because several types of halftone may be used on the
      same page.
       PS3       XPS
(4) Select the desired resolution level on the "Resolution" option.
    * "1200 dpi" is selectable only for PS3 printer driver.
       PS3      XPS
(5) Uncheck "Use Sharpness Filter" on the "Image Attribute" tab menu.
      PS3       XPS
(6) Select "None" on the "CMYK Source Profile" option on the "Advanced" tab menu.
    * At this step you can set any printer profile.
       PS3      XPS
(7) Uncheck "Apply to Device Color Only".
       PS3      XPS
(8) Print a color measurement patch to be used on the ICC profile creation software.
       PS3      XPS
(9) Create the ICC profile following the operational procedure provided by the ICC profile creation software.
 Remarks
• Read the precautions provided by the ICC profile creation software carefully before starting printing.
• The correct image may not be printed on some paper types that are out of the MFP’s specifications.
3.25.2 To Print Precise Colors Using Existing RGB Source ICC Profiles
 Explanation
Some users use standard RGB color space ICC profiles that are disclosed and distributed by some websites when
they print RGB images in their computers with RGB color space which matches with one of the ICC profiles
they obtained from the website. This method is used, for example, when photo images must be printed with
Adobe RGB color space. Namely, when the user has a standard ICC profile that is most suitable for particular
images, he or she can apply this profile to the color conversion at the printing so that ideal print images whose
colors are precisely converted can be obtained.
 Procedures
* Both the service technician and the user can perform all settings.
       PS3       XPS
(1) Create the desired printer profile using the ICC profile creation software.
PS3 XPS
(2) Access TopAccess and open the "Administration" tab menu. Then upload the desired RGB source profile and printer
    profile.
    • Follow (a) to (g) below to upload the profiles.
         (a) Access TopAccess and open the "Administration" tab menu.
         (b) Open the "Setup" menu and the "ICC Profile" submenu.
(d) Click [Browse] of "Import new Profile" to select a file for the profile. Then click [Import].
       PS3      XPS
(3) Open the Properties page of the printer driver and then select "Advanced" on the "Image Quality Type" option on the
    Image Quality" tab menu. Then click [Setting].
       PS3      XPS
(4) Select the uploaded RGB profile on "RGB Source Profile" on the "Advanced " tab menu.
PS3 XPS
(5) Select the profile of the printer uploaded in "Printer Profile" in the "Color profile" tab.
 Remarks
• Not all colors may be printed precisely because the color gamut reproducible with MFPs differs depending on
 the models.
• The accuracy of color reproduction differs depending on printer profiles used.
3.25.3 To Perform Simulated Printing with CMYK Inks of Each Ink Manufacturer
 Explanation
ICC profiles for CMYK ink series provided by each ink manufacturer are disclosed and distributed by some
websites and some users want to make a simulated printing using one of these profiles. This simulation is
possible by using ICC profiles for CMYK ink of particular ink manufacturer as a CMYK source profile.
 Procedures
* Both the service technician and the user can perform all settings.
PS3 XPS
(1) Create the desired printer profile using the ICC profile creation software.
       PS3       XPS
(2) Access TopAccess and open the "Administration" tab menu. Then upload the desired CMYK source profile and
    printer profile.
    • Follow (a) to (g) below to upload the profiles.
         (a) Access TopAccess and open the "Administration" tab menu.
         (b) Open the "Setup" menu and the "ICC Profile" submenu.
(d) Click [Browse] of "Import new Profile" to select a file for the profile. Then click [Import].
       PS3      XPS
(3) Open the Properties page of the printer driver and then select "Advanced" on the "Image Quality Type" option on the
    Image Quality" tab menu. Then click [Setting].
       PS3      XPS
(4) Select the uploaded CMYK profile on "CMYK Source Profile" on the "Advanced" tab menu.
       PS3      XPS
(5) Select the profile of the printer uploaded in "Printer Profile" in the "Color profile" tab.
 Remarks
• Not all colors may be printed precisely because the color gamut reproducible with MFPs differs depending on
 the models.
• The accuracy of color reproduction differs depending on printer profiles used.
 Explanation
In the service tool (e-BRIDGE Color Profile Tool V3.0), RGB source ICC profiles which meet the specific color
reproduction can be created.
By using this created profile, printing with a specific color reproduction is possible.
 Procedures
* Only the service technician must use step (1).
* Both the service technician and the user can use steps (2) or later.
      PS3      XPS
(1) Create the RGB source ICC profile for the desired color reproduction using e-BRIDGE Color Profile Tool V3.0.
      PS3      XPS
(2) Access TopAccess and open the "Administration" tab menu. Then upload the desired RGB source profile.
   • Follow (a) to (g) below to upload the profile.
         (a) Access TopAccess and open the "Administration" tab menu.
         (b) Open the "Setup" menu and the "ICC Profile" sub menu.
(d) Click [Browse] of "Import new Profile" to select a file for the profile. Then click [Import].
      PS3      XPS
(3) Open the Properties page of the printer driver and then select "Advanced" on the "Image Quality Type"
   option on the "Image Quality" tab menu. Then click [Setting].
PS3 XPS
(4) Select the uploaded ICC profile on "Custom RGB profile" on the "Advanced" tab menu.
 Remarks
Not all colors may be printed precisely because the color gamut reproducible with MFPs differs depending on
the models.
3.25.5 To Convert Colors with Specified Source ICC Profiles (Not Using Embedded ICC Profiles)
 Explanation
When a user’s RGB images or CMYK images have embedded ICC profiles, the user can ignore the embedded
ICC profiles and apply a different ICC profile previously specified by the user, so that he or she can obtain print
images whose quality is equivalent to that of Fiery images.
 Procedures
* Both the service technician and the user can perform all settings.
PS3 XPS
(1) Create the desired printer profile using the ICC profile creation software.
PS3 XPS
(2) Access TopAccess and open the "Administration" tab menu. Then upload the desired RGB source profile, CMYK
    source profile and printer profile.
    • Follow (a) to (g) below to upload the profiles.
         (a) Access TopAccess and open the "Administration" tab menu.
         (b) Open the "Setup" menu and the "ICC Profile" submenu.
(d) Click [Browse] of "Import new Profile" to select a file for the profile. Then click [Import].
       PS3      XPS
(3) Open the Properties page of the printer driver and then select "Advanced" on the "Image Quality Type" option on the
    Image Quality" tab menu. Then click [Setting].
PS3 XPS
(4) Select the uploaded profile on "RGB Source Profile" or "CMYK Source Profile" on the "Advanced" tab
    menu.
PS3 XPS
       PS3      XPS
(6) Select the uploaded printer profile on "Profile" of the "Destination Profile" option.
 Remarks
Colors printed in this procedure may not be completely the same as those of Fiery images because the color
measurement method of this procedure is not completely equal to the one for Fiery.
 Explanation
After printer profiles were applied by selecting "Advanced" on the "Image Quality Type" option on the printer
driver menu, a user can perform further image adjustments.
 Procedures
* Both the service technician and the user can perform all settings.
PS3 XPS
(1) Open the Properties page of the printer driver and then select "Advanced" on the "Image Quality Type" option on the
    "Image Quality" tab menu. Then click [Setting].
       PS3      XPS
(2) Select the desired profiles on "RGB Source Profile", "CMYK Source Profile" or "Profile" of the "Destination
    Profile" option.
       PS3      XPS
(3) Open the "Color Balance" tab menu and then change each setting items to obtain the desired color balance.
       PS3      XPS
(4) Open the "Image Attribute" tab menu and then change each setting items to obtain the desired image quality.
Before After
 Explanation
When an original containing a red seal is printed, users can select the Red Seal Color Mode as the original mode.
Use this mode if the reproducibility of red seal color printed under the default settings is insufficient.
 Procedures
(1) Select [08 SETTING MODE]. Change the value for code [8005] to “1”.
(2) Select the “Red Seal Color Mode” check box on the printer driver.
    For Windows
     PCL6      PS3       XPS      * This adjustment will only have an effect on Auto or Color mode printing.
    Open the property page of the printer driver. Select “General” in the “Original Image Quality Type” box in
    the “Image Quality” tab, and then press [Setting].
    Mark the “Red Seal Color Mode” checkbox in the “Basic” tab.
For Macintosh
Mac * This adjustment will only have an effect on Color mode printing.
Open the print dialog box. Select the "Color Settings 1" - “Red Seal Color Mode” check box.
After changing the setting on the printer driver, print the image and check its image quality.
 Explanation
When the density of a halftone section looks uneven, this unevenness can be suppressed by changing the number
of screen lines.
With this adjustment, image quality in continuous copying can be more stable.
 Procedures
* Perform the adjustment in accordance with the procedures below.
* Both the service technician and the user can use procedure (1).
* Only the service technician must use procedure (2).
<Note>
This setting applies to print jobs with 600 dpi. Set this to color and black printing, respectively.
Changing the setting displays the CONFIRMATION screen that asks whether you want to perform calibration or
not. Be sure to select [OK] and carry it out.
Make sure to perform automatic gamma adjustment after changing the value.
 Explanation
White voids in the background caused by off-registration of the text or graphics can be reduced and color
misalignment can be suppressed by the Auto Trapping adjustment. Use this mode if the effectiveness of the color
misalignment correction is to be enhanced.
 Procedures
* The service technician must perform all adjustments.
Enter [05 ADJUSTMENT MODE] and change the setting value for the code [8244]. First, change the setting
value of the subcode “0”. Only when the effect is insufficient even if the setting value of the subcode “0” is
changed to “3”, alter the one for the subcode “1”.
 Remarks
Nothing
e-STUDIO2000AC/2500AC/2505AC/3005AC/3505AC/4505AC/5005AC (Ver00)        © 2016 TOSHIBA TEC CORPORATION All rights reserved
                                                          3-148
                                                                                       3. Printer-specific Adjustments
 Explanation
Black text or black thin lines sometimes become thicker and thus are smudged. Use this mode to perform
printing while adjusting the thickness of black text or black thin lines.
 Procedures
* The service technician must perform all adjustments.
Change the setting values in [05 ADJUSTMENT MODE] to adjust smudged black text and black thin lines.
* The setting codes to be changed differ between the adjustment of the image quality in full color or twin color
  printing and that for black-and-white printing. Select the adjustment procedure corresponding to the original
  type to be printed.
    * The "Color" options are available in the "Basic" tab on the PCL6, PS3 and XPS printer drivers. The "Color
      Type" options are available in the "Color Settings 1" menu in the print dialog box on Macintosh.
    <Notes>
    This adjustment is available only when the resolution is 600dpi.
Explanation
Perform this adjustment in the following cases.
-       When printing the line thickness evenly
-       When lines are not properly printed just as print data
-       When printing colored thin lines or light-colored lines
-       When making lines thicker or reducing jaggies
Adjustment type
    Type                                                                    Function to be affected
    a         Halftone adjustment (when changing per user)                  Print
    b         Resolution                                                    Print
    c         Graphic line width adjustment                                 Print
    d         Image quality type                                            Print
    e         Halftone applicable range adjustment                          Print
Printer driver
For Windows
Open the Properties page of the printer driver and then select [Advanced] in the [Image Quality] tab.
Select [Detail] in the Halftone option in the [Basic] tab.
For Mac
Open the print dialog box and select [Color Settings 1]. Select [Detail] in the Halftone option.
b. Resolution
To reproduce thin lines by making the resolution level higher, press [Settings]. Select [1200dpi] in the
Resolution option in the [Basic] tab.
-    [1200dpi] is selectable only for a PS printer driver.
Printer driver
Select the [Distinguish Thin Line] check box in the printer driver.
For Windows
Open the Properties page of the printer driver and then select [Advanced] in the [Image Quality] tab.
Select the [Distinguish Thin Lines] check box in the [Basic] tab.
For Mac
Open the print dialog box and select [Print Mode]. Select the [Distinguish thin lines] check box.
After the value is changed, perform printing and check the image quality.
Self-diagnosis code
You can make thin lines thicker with the following codes when the [Distinguish Thin Line] check box is
selected.
    Resolution     Color mode                   Code          Recommended                  Acceptable        Default value
                                                              value                        value range
    600 dpi        Common for Color             05-8240       Set a value larger           1 to 9            2
                   and Black                                  than 2.
    1200 dpi       Common for Color             05-8241       Set a value larger           1 to 9            2
                   and Black                                  than 2.
-     The unit of the value is the number of dots (line thickness). Lines thinner than the value will become
      thicker as specified.
-     Set the value while checking the image until the optimum value is obtained.
<Tip>
-    This adjustment will only have an effect on printing files created by a general application, such as
     Microsoft Office.
-    This will have no effect on printing files created by graphics applications (e.g. Illustrator) or DTP
     applications (e.g. QuarkXPress), or on printing PDF files with CMYK colors created on these
     applications. In a Windows PS driver, this will have an effect by deselecting the [Use PostScript
     Passthrough] check box in the PostScript Setting option in the [Others] tab. (This is not available in a
     Mac printer driver.) In this case, the color tone may be changed and the image quality may be
     diminished depending on the type of file. (when changing per user)
For Windows
* This adjustment will have an effect only on Auto or Color mode printing.
Open the Properties page of the printer driver and then change the setting in the Image Quality Type option
in the [Image Quality] tab.
For Mac
Open the print dialog box and select [Color Settings 1]. Change the setting of the Image Type option.
Enter [05 ADJUSTMENT MODE] and change the setting values for the codes from [8121] to [8126] to adjust
   smudged black text and black thin lines.
                                                                                                   Default
                                                                          Acceptable                 e-
                                           [05]      Recommend                                 e-
     Resolution        Color      PDL                                       value                    STUDIO2505
                                           Code        ed value                            STUDIO2
                                                                            range                    AC/3005AC/3
                                                                                           000AC/25
                                                                                                     505AC/4505A
                                                                                             00AC
                                                                                                     C/5005AC
                                   PS       8121     When a larger                                         2
                       Color      PCL       8122      value than the                                       5
                                  XPS       8123      default one is                                       5
         600dpi                                       set, black text         0 to 9           2
                                   PS       8124       or black thin                                       2
                       Twin
                                  PCL       8125     lines are thinly                                      5
                       Color
                                  XPS       8126          printed.                                         5
    * The "Color" options are available in the "Basic" tab on the PCL6, PS3 and XPS printer drivers. The "Color
      Type" options are available in the "Color Settings 1" menu in the print dialog box on Macintosh.
    <Notes>
    For e-STUDIO2000AC/2500AC, this adjustment is available only when the resolution is 600dpi.
    Enter [05 ADJUSTMENT MODE] and change the setting values for the codes from [7325] to [7327] or
    [7305] to adjust smudged black text and black thin lines.
                                                                                                   Default
                                                                            Acceptab                 e-
                                           [05]      Recommende                                e-
     Resolution        Color      PDL                                        le value                STUDIO2505
                                           Code        d value                             STUDIO2
                                                                              range                  AC/3005AC/3
                                                                                           000AC/25
                                                                                                     505AC/4505A
                                                                                             00AC
                                                                                                     C/5005AC
                                   PS       7325                                                2                  2
                                                      When a larger
                                                      value than the
         600dpi        Black      PCL       7326       default one is                           2                  5
                                                     set, black text or        0 to 9
                                  XPS       7327      black thin lines                          2                  5
                                                         are thinly
                                                          printed.
        1200dpi        Black       PS       7305                                                 -                 5
                                                                                 After adjustment
                                                                       After the threshold value was adjusted
Before adjustment
 Explanation
When a black-and-white original containing black-and-white photo images is scanned in the Auto color mode
and stored in the e-Filing box (Scan to Box), it is stored with binary data, with reference to a threshold value.
This may make a dark area blurred and a light area eliminated. Adjust the threshold value, in order to clearly
store the black-and-white original in the Auto color mode.
* This adjustment will have an effect on the image stored using Scan to File and Scan to E-mail.
 Procedures
* Both the service technician and the user can perform all adjustments.
  Scan to Box      * This adjustment will have an effect only on images stored in the Auto color mode.
(1) This adjustment is effective when you scan an original judged as a black image at the most appropriate
    density level in the color modes.
    • Use steps (a) to (d) to adjust the density.
        (a) Press [USER FUNCTIONS] on the Control Panel to enter the "User Functions" menu.
        (b) Press [USER].
        (c) Press [SCAN].
        (d) Press [ ] or [ ] of the "B/W ADJUSTMENT FOR STANDARD" option to adjust the density
            level for scanning the original judged as a black image in the Auto color mode.
            • If the density level is set to " ," the original will be stored with the low density.
            • If the density level is set to " ," the original will be stored with the high density.
    After adjusting the density, scan and store the original in the e-Filing box. Then check the image quality.
    Only if the user’s desired image quality is still not obtained after the density has been adjusted, use the next
    procedure.
  Scan to Box      * This adjustment will have an effect only on images stored in the Auto color mode.
(2) Select "HIGH QUALITY" from among the "IMAGE QUALITY FOR BLACK IN ACS" options, to store
    the black-and-white original in the Gray scale mode.
    • Use steps (a) to (d) to select the "IMAGE QUALITY FOR BLACK IN ACS" option.
         (a) Press [USER FUNCTIONS] on the Control Panel to enter the "User Functions" menu.
         (b) Press [USER].
         (c) Press [SCAN].
         (d) Press [HIGH QUALITY] in the "IMAGE QUALITY FOR BLACK IN ACS" option.
 Remarks
• If "HIGH QUALITY" is selected from among the "IMAGE QUALITY FOR BLACK" options and black-and-
  white originals are scanned in the Auto color mode and stored in the e-Filing box (Scan to Box), this allows
  them to be stored in the Gray scale mode rather than in the binary mode, and eventually provides better
  halftones. The data will increase in size, compared to those in the binary mode.
• The adjustment of density will be effective, only if "STANDARD" is selected from among the "IMAGE
  QUALITY FOR BLACK IN ACS" options.
   When "LOW" is from among the                                       When "HIGH" is from among the
   compression rate options, the file size will                       compression rate options, the file size will
   become larger than required.                                       be reduced.
 Explanation
When an original is scanned in the Full color or the Gray scale mode and stored in the e-Filing box (Scan to Box),
it will be compressed into JPEG format. The data compression rate can be selected on a job-by-job basis. The
file size significantly varies depending on the selected data compression rate. (When "LOW" is selected from
among the compression rate options, the file size will be 2 to 3 times larger than the one when "HIGH" is
selected.) When storing the original, if a higher priority is given to file size reduction than the image quality,
change the compression rate.
* This adjustment will have an effect on images stored using Scan to File and Scan to E-mail.
 Procedures
* Both the service technician and the user can perform all adjustments.
  Scan to Box      * This adjustment will have an effect only on images (JPEG format) stored in the Full color mode (including the Auto
                     color mode) or the Gray scale mode.
(1) Select "HIGH" from among the compression rate options.
    * "MID" is selected from among the compression rate options by default.
     * The procedure to use varies, depending on whether to select the compression rate on a job-by-job basis
       (without utilizing the template), utilize the template, or change the default compression rate. Refer to "To
       select the compression rate on a job-by-job basis" in order to store an image at a high compression rate for
       a particular job. Refer to "To utilize the template" in order to select an appropriate compression rate,
       corresponding to the type of original to store and the purpose of the image stored. Refer to "To change the
       default compression rate" in order to have "HIGH" selected from among the compression rate options by
       default.
    To select the compression rate on a job-by-job basis (without utilizing the template)
     When scanning the original, press [SCAN SETTING] on the Control Panel. Select "HIGH" from among the
     COMPRESS options.
 Remarks
If the full-color or gray-scale image is copied or printed and stored in the e-Filing box (Copy to Box or Print to Box), the
user can select a desired compression rate, when downloading the image using File Downloader on a client PC.
Stored Stored
Downloaded Downloaded
Client PC Client PC
 The image stored in the e-Filing box looks                        The color balance of the image stored is closely
 different in the color balance from the original.                 matched with that of the original.
 Explanation
If a full-color image is printed on a client PC and stored in the e-Filing box (Print to Box), it will be optimized
for printing on paper. This is the reason why the image stored in the e-Filing box looks slightly different in the
color balance from the original displayed on the computer monitor. Change the "Image Quality Type" setting on
the printer driver, in order to minimize the difference in the color balance and closely match the color balance of
the image stored with that of the original.
 Procedures
* Both the service technician and the user can perform all adjustments.
  Print to Box     PCL5c       PS3             * This adjustment will have an effect only on the image stored in the Auto mode or
                                       XPS
                                                 the Color mode.
(1) Open the property page of the printer driver. Select "General" from among the "Image Quality Type"
    options in the Image Quality tab.
    * "General" allows the image to be stored in colors, which are closely matched with the original, compared
      to the other Image Quality Type options.
 When the image stored in the e-Filing box is                      The image stored in the e-Filing box can be
 printed, moiré is likely to occur.                                printed, while moiré is minimized.
 Explanation
An original is scanned and stored in the e-Filing box (Scan to Box). When the image stored is printed directly
from the e-Filing box, moiré may occur, depending on the type of original. Also, it is likely to occur, particularly
when the original is scanned in the Full color mode or the Auto color mode in a high resolution (600 dpi) or even
in the Gray scale mode. Select an appropriate scan resolution or adjust the sharpness intensity in the scanning
functions, in order to store the original and print it from the e-Filing box, while minimizing moiré.
 Procedures
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
  below. You can use one procedure in conjunction with another. But if this changes the image quality more than
  required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
  to the original ones. Then use other procedures.
* Both the service technician and the user can use procedures (1) to (3).
* Only the service technician must use procedure (4).
  Scan to Box
(1) When scanning the original, press [SCAN SETTING] on the Control Panel. Select "PHOTO" from among
    the original mode options.
    * This adjustment will be effective, only if "TEXT" or "TEXT/PHOTO" is initially selected from among the
      original mode options.
    * This adjustment will have an effect only on the image stored in the Full color mode (including the Auto color
      mode).
    After changing the original mode, scan and store the original. Then print and check the print image quality.
    If further image quality adjustments are still necessary, use other procedures.
Scan to Box
(2) When scanning the original, press [SCAN SETTING] on the Control Panel. Select a lower resolution in the
    resolution option.
    * "200 (dpi)" is selected from among the resolution options by default. If moiré occurs in a resolution of 200
      dpi, select a lower resolution (150 dpi is recommended.).
    After changing the resolution, scan and store the original. Then print and check the print image quality.
    If you do not prefer to decrease a resolution, or if moiré still occurs even in a lower resolution, use other
    procedures.
Scan to Box
(3) When scanning, press [SCAN SETTING] on the Control Panel. Adjust the sharpness intensity.
    • Press [+] on the indicator to increase the sharpness intensity or [-] to decrease it.
    * The sharpness intensity is set to the center (±) by default. If moiré occurs by default, press [-] to decrease
      the sharpness intensity.
    After adjusting the sharpness intensity, scan and store the original. Then print and check the print image
    quality.
    With the sharpness intensity set to the minimum, if moiré still occurs, use other procedures.
Scan to Box
(4) Select [05 ADJUSTMENT MODE]. Change the values for codes [7430 to 7433], [7470], [8335], [8336],
    [8354] and [8375] to adjust the sharpness intensity in the scanning functions.
    * This adjustment will have an effect only on an image stored in the Full color mode or the Gray scale mode.
                                                                                              Acceptable
      Color mode         Original mode [05] code           Recommended value                                 Default
                                                                                              value range
                          Text/Photo         05-8354
                              Text           05-8335
         Full color
                             Photo           05-8336
                          User custom        05-8375
        Gray scale             ---           05-7433     Set a value smaller than 128.          0 to 255        128
                          Text/Photo         05-7430
                              Text           05-7431
           Black
                             Photo           05-7432
                          User custom        05-7470
    * Setting "0" provides the softest image, while setting "255" provides the sharpest image.
                            Copy to Box,
                            Print to Box
      e-Filing box          (Print data)                                                       Copy to Box,
                                                                                               Print to Box
                                                                                               (Print data)
                                  Stored
                                                                        e-Filing box
                          Downloaded
                          (Converted into RGB)                                                       Stored
    Client PC
                                   Stored
                                                                                               Print
                                                                                               (Print data)
                               Print
                               (Converted into
                               print data again)
 If the image stored in the e-Filing box is                        If the image is printed out directly from the e-
 downloaded to a PC and then printed out, the                      Filing box, the image quality will be
 image data conversion may diminish the image                      maintained.
 quality.
 Explanation
If the original is copied or printed and stored in the e-Filing box (Copy to Box or Print to Box), and is printed out
by being downloaded to a client PC using File Downloader or the TWAIN driver, the image quality may be
diminished.
The image data stored in the e-Filing box (Copy to Box or Print to Box) are optimized for printing on paper.
However, they are converted for the computer monitor display after being downloaded to the PC. The quality of
the image may be diminished when it is printed out since the data optimized for display on the computer monitor
are not suitable for printing.
Therefore, images should be printed out directly from the e-Filing box, rather than being downloaded to the PC.
 Procedures
* Both the service technician and the user can perform all adjustments.
(1) Print out the image stored in the e-Filing box on the Control Panel or using the e-Filing Web utility.
    * For further information regarding how to print it out, refer to the Operator’s Manual for e-Filing Guide.
 Remarks
When "Archive Document" of the e-Filing Web utility or "Backup" of the e-Filing Backup/Restore Utility is used,
image data stored in the e-Filing box can be converted to a file maintaining the image quality optimized for
printing. For example, you may want to temporarily move stored data to make some space in the box and save
them again in the box. When data are converted to a PDF or TIFF file and then moved using the File
Downloader, the image quality may be diminished. However, you can use Archive Document or Backup to
move the data while maintaining the image quality. The Backup feature can also collectively backs up all the
data in the e-Filing box. Note that files created through the Archive Document or Backup feature cannot be
directly opened on the PC or printed out. For further information regarding Archive Document and Backup,
refer to the e-Filing Guide.
Stored Stored
                             Downloaded                                                        Downloaded
                             (Converted into RGB)                                              (RGB data)
     Client PC                                                        Client PC
 When the original is stored by Copy to Box, it                    The original is stored as RGB data by Scan to
 is not suitable for monitor display since it is                   Box. This can avoid unnecessary data
 optimized for printing on paper. This may                         conversion. As a result, the image quality can
 diminish the image quality.                                       be maintained.
e-STUDIO2000AC/2500AC/2505AC/3005AC/3505AC/4505AC/5005AC (Ver00)     © 2016 TOSHIBA TEC CORPORATION All rights reserved
                                                          4-11
4. e-Filing-specific Adjustments
 Explanation
If a full-color original is copied or printed and stored in the e-Filing box (Copy to Box), and it is displayed on the
monitor by being downloaded to a client PC using File Downloader or the TWAIN driver, the image quality may
be diminished.
The image data stored in the e-Filing box (Copy to Box) are optimized for printing on paper. However, they are
converted for the computer monitor display after being downloaded to the PC. This may cause the colors to be
misaligned or grainy on the printout, so if the image is edited on the PC, its quality may be diminished.
To store a full-color original and display it on the computer monitor, while minimizing image degradation, scan
and store it in the e-Filing box (Scan to Box). This allows it to be stored as data optimized for display on the
computer monitor.
 Procedures
* Both the service technician and the user can perform all adjustments.
Scan to Box * This adjustment will have an effect only on the image stored in the Full color mode (including the Auto color mode).
(1) Scan the full-color image and store it in the e-Filing box.
    * For further information regarding how to scan and store images, refer to the Operator’s Manual for e-Filing
      Guide and Scanning Guide.
Stored Stored
Ex: Printing image mode = Presentation Ex: Printing image mode = Photo
                           Print                                                              Print
                           (Converted into                                                    (Converted into
                           print data)                                                        print data)
 Unless the printing image mode is selected,                       When the printing image mode suitable for the
 printing may be performed with image                              stored data is selected, the data can be printed
 processing not suitable for the stored data.                      finely with optimal image processing.
 Explanation
When an image is scanned stored in the e-Filing box (Scan to Box) in the Full color or the Auto color mode, and
printed as it is (without the printing image mode set), printing may be performed with image processing not
suitable for the image, and the user may not obtain the desired image quality. To finely print a full-color image
scanned and stored, select the printing image mode (General/Photograph/Presentation/Line Art) suitable for the
image. Then, printing can be performed with image processing optimal for the image, in the same manner as
printing on the printer driver.
 Procedures
* Perform the adjustment in accordance with the procedures below.
* Both the service technician and the user can perform all adjustments.
Scan to Box * This adjustment will have an effect only on the image stored in the Full color mode (including the Auto color mode).
(1) Scan the full-color image and store it in the e-Filing box.
    * For further information regarding how to scan and store images, refer to the Operator’s Manual for e-
      Filing Guide and Scanning Guide.
Scan to Box
(2) Select a printing image mode suitable for the stored image.
    • Use steps (a) to (d) to change the printing image mode.
         (a) Press [USER FUNCTIONS] on the Control Panel to enter the "User Functions" menu.
         (b) Press [USER].
         (c) Press [E-FILING].
         (d) Press the button for the mode suitable for the image in the [PRINTING IMAGE MODE] option.
    * For further information regarding the features of each printing image mode, refer to the explanation of the
      "Image Quality Type" options in Procedure (1) of 3.3 To Obtain the Desired Color Balance.
    <Note>       A change to the printing image quality mode will apply to all future printouts using the e-Filing
                 box. Carefully perform the adjustment while printing out images other than the one that is used
                 for the adjustment.
Scan to Box
(3) Print out the image stored in the e-Filing box on the Control Panel or using the e-Filing Web utility.
    * For further information regarding how to print it out, refer to the Operator’s Manual for e-Filing Guide.
4.8 Appendix
* Perform the e-Filing setting according to the input and output methods of the data.
 If the original is scanned in the Full color                      The image quality is maintained, while noise
 mode or the Gray scale mode, noise may occur                      is being reduced.
 in text or edges of a solid filled area.
 Explanation
When an original is scanned in the Full color or the Gray scale mode, the data compression may cause noise
(toner scattering) around text or the edges of a solid filled area. Adjust the compression rate or change the scan
resolution, in order to obtain a better scanned-in image, while reducing noise.
* This adjustment will have an effect on the image scanned in the Full color mode (including the Auto color
 mode) or the Gray scale mode.
 Procedures
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use this procedure. However, step (3) in the procedure must be
 performed only by the service technician.
(1) When scanning the original, press [SCAN SETTING] on the Control Panel. Select "LOW" from among the
    compression rate options.
    * [MID] is selected from among the compression rate options by default.
    After changing the compression rate, scan the original and check the scanned-in image quality.
    If further image quality adjustments are still necessary, use procedure (2).
(2) When scanning the original, press [SCAN SETTING] on the Control Panel. Select a higher resolution in the
    resolution option.
    * "200 (dpi)" is selected from among the resolution options by default. If noise occurs in a resolution of 200
      dpi, select a higher resolution (300 dpi, 400 dpi or 600 dpi).
    After changing the resolution, scan the original and check the scanned-in image quality.
    If further image quality adjustments are still necessary, use procedure (1).
(3) Select [05 ADJUSTMENT MODE]. Change the value for the code [8304] to change the JPEG compression ratio.
       Compression                                         Recommended            Acceptable
                           [05] code      Subcode                                                      Default
          ratio                                                  value            range value
                                                          Set a value smaller
         High quality                          0
                                                          than 128 for higher
                                                           compression ratio.
           Standard         05-8304            1                                     0 to 255             128
                                                           Set a value larger
                                                          than 128 for lower
         Low quality                           2
                                                          compression ratio.
• If the resolution selected in procedure (2) is too high, moiré may possibly occur in the scanned-in image.
  Therefore, carefully adjust the resolution, while checking the scanned-in image.
 Remarks
Use the following steps to change the default compression rate and resolution options:
  (a) Press [USER FUNCTIONS] on the Control Panel to enter the "User Functions" menu.
  (b) Press [USER].
  (c) Press [SCAN].
  (d) In the " COMPRESS" or "RESOLUTION" option, press the button corresponding to the desired
      compression rate or resolution option.
   * The default resolution can be selected on a color mode basis: Full color mode (including the Auto color
     mode), Gray scale mode and Black mode.
      • The following resolution options are available as the default:
         • Full color mode (including the Auto color mode): 600 / 400 / 300 / 200 / 150 / 100 (dpi)
         • Gray scale mode:                                    600 / 400 / 300 / 200 / 150 / 100 (dpi)
         • Black mode:                                         600 / 400 / 300 / 200 / 150 / 100 (dpi)
 The background color of the original is also                      The background color is eliminated, allowing
 scanned. Therefore, no clear contrast is made                     clear contrast between the background and
 between the background and image.                                 image.
 Explanation
When an original with a background is scanned, such as a newspaper and colored paper, the background color is
also scanned. Therefore, no clear contrast is made between the background and image. Perform background
adjustment, in order to clearly scan such originals.
* This adjustment will have an effect on the image scanned in all color modes.
 Procedures
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
  below. You can use one procedure in conjunction with another. But if this changes the image quality more than
  required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
  to the original ones. Then use other procedures.
* Both the service technician and the user can use procedure (1) and (2).
* Only the service technician must use procedure (3).
(1) Set the density adjustment method to the automatic adjustment by pressing [AUTO] of the "EXPOSURE"
    option.
(2) When scanning the original, press [SCAN SETTING] on the Control Panel. Press [BACKGROUND
    ADJUSTMENT]. Press [ ] to decrease the background density.
    After decreasing the background density, scan the original and check the scanned-in image quality.
    With the background density set to the minimum, if further image quality adjustments are still necessary, the
    service technician must use the next procedure.
(3) Select [05 ADJUSTMENT MODE]. Change the values for codes [7436 to 7439], [7441], [8309 to 8311] and
    [8370] to decrease the background density.
    • The code to use varies depending on original mode. Adjust the value for [05] code corresponding to the
      color mode for which you would like to improve the image quality.
                                                                                           Acceptable
      Color mode        Original mode [05] code            Recommended value                                 Default
                                                                                           value range
                          Text/Photo         05-8309
                              Text           05-8310
        Full color
                             Photo           05-8311
                          User custom        05-8370
        Gray scale             ---           05-7439     Set a value smaller than 128.        0 to 255          128
                          Text/Photo         05-7436
                              Text           05-7437
          Black
                             Photo           05-7438
                          User custom        05-7441
    * The setting value "25" corresponds to one step in the background adjustment on the control panel.
    *The background density will become the lowest, if "0" is set. On the other hand, it will become the highest,
      if "255" is set. Changing the value will also change the background density, when the "Background
      Adjustment" indicator is set to the center. Then, if the background density of the center value is changed,
      each step of the indicator will be changed accordingly. (For instance, if the center value is decreased by 5
      (lighter), the value of each step of the indicator will also be decreased by 5 (lighter)).
 Remarks
When scanning the original, use the following steps to change the default indicator position in the background
adjustment option, which is displayed on the Control Panel:
   (a) Press [USER FUNCTIONS] on the Control Panel to enter the "User Functions" menu.
   (b) Press [USER].
   (c) Press [SCAN].
   (d) Press [Next] twice to display the menu to change the initial values for the Full color and Auto color modes.
   (e) Select the default background density in the "BACKGROUND ADJUSTMENT" option.
 If the original is scanned in the Black mode,                       The halftones of the scanned-in image are
 the halftones may become blurred in black.                          clearly printed out.
 Explanation
If an original is scanned in the Black mode, a difference in the density level of the halftones cannot be accurately
scanned. As a result, it may become blurred in black or grained. Scan a black-and-white original in the Gray
scale mode, in order to scan and print it out in black and white more clearly.
 Procedures
* Both the service technician and the user can perform all adjustments.
(1) When scanning the original, press [SCAN SETTING] on the Control Panel. Select "GRAY SCALE" from
    among the color mode options.
 * Ratio of the file size in the Black mode to the Gray scale mode
    • If the file size in the Black mode with the Text mode selected is 1, it will be increased to approximately 7 times
      in the Gray scale mode.
    • If the file size in the Black mode with the Photo mode selected is 1, it will be approximately doubled in the
      Gray scale mode.
                                            Approx.                                                          Approx.
                                               550 KB                                                           90 KB
* The above file sizes are just for your reference. * The above file sizes are just for your reference.
 Explanation
If an original is scanned in the default resolution and at the default compression rate, a proper image will be
obtained for general purposes. But the file size may become larger than required. The file size of the scanned-in
image significantly varies, depending on the selected resolution or compression rate. If an appropriate resolution
and a compression rate are selected in accordance with the purpose of the original, the image quality will be
maintained, while the file size is being reduced. Change the resolution, original mode, or compression rate or
perform the background adjustment, in order to minimize the file size of the scanned-in image.
The product offers the "Slim PDF" function. This will diminish the image quality but reduce the file size to
approximately 1/8 to 1/10, compared to the scanned-in image (300dpi, compression rate: MID) in JPEG format.
 Procedures
* The procedure to use varies, depending on whether to reduce the file size by changing the options when
 scanning the original or in Slim PDF. Refer to "To Reduce the File Size by Changing the Options when
 Scanning the Original" in order to reduce the file size without changing the file format. Refer to "To Reduce
 the File Size in Slim PDF" in order to give a higher priority to the file size reduction than the image quality.
5.4.1 To Reduce the File Size by Changing the Options when Scanning the Original
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use this procedure. However, step (5) in the procedure must be
 performed only by the service technician.
(1) When scanning the original, press [SCAN SETTING] on the Control Panel. Select a lower resolution in the
    resolution option.
    * "200 (dpi)" is selected from among the resolution options by default. Select a lower resolution option (100
      dpi or 150 dpi) to reduce the file size.
    * This adjustment will have an effect on an image scanned in all color modes (Full color, Gray scale, Black
      and Auto color).
    After changing the resolution, scan the original and check the scanned-in image quality.
    If further image quality adjustments are still necessary, use other procedures.
(2) When scanning the original, press [SCAN SETTING] on the Control Panel. Select "TEXT" from among the
    original mode options.
    * Perform this adjustment, only if a black-and-white original containing no photo images is scanned or if
      degradation in the photo image quality is acceptable.
    * This adjustment will be effective, only if [TEXT/PHOTO] or [PHOTO] is initially selected from among
      the original mode options.
* This adjustment will have an effect only on an image scanned in the Black mode.
    After changing original mode, scan the original and check the scanned-in image quality.
    If further image quality adjustments are still necessary, use other procedures.
(3) When scanning the original, press [SCAN SETTING] on the Control Panel. Select "HIGH" from among the
    compression rate options.
    * [MID] is selected from among the compression rate options by default.
    * This adjustment will have an effect only on an image scanned in the Full color mode (including the Auto
      color mode) or the Gray scale mode.
    After changing the compression rate, scan the original and check the scanned-in image quality.
    If further image quality adjustments are still necessary, use other procedures.
(4) When scanning the original, press [SCAN SETTING] on the Control Panel. Press [BACKGROUND
    ADJUSTMENT]. Press [           ] to decrease the background density. Then select "HIGH" from among the
    compression rate options.
    * This adjustment will be effective, only if the original with a color background, such as a newspaper and
      color paper, is scanned.
    * This adjustment will have an effect only on the image scanned in the Full color mode (including the Auto
      color mode) or the Gray scale mode.
    After decreasing the background density and changing the compression rate, scan the original and check the
    scanned-in image quality.
    With the background density set to the minimum, if further image quality adjustments are still necessary, use
    other procedures.
(5) Select [05 ADJUSTMENT MODE]. Change the value for the code [8304] to change the JPEG compression ratio.
    • Correlation between the resolution and the file size (procedure (1))
      * The file size in a resolution of 200 dpi is 100%.
               Resolution                       File size ratio
                  200 dpi                             100%
                  150 dpi                         Approx. 60%
                  100 dpi                         Approx. 30%
    • Correlation between the original mode and the file size (procedure (2))
      * The file size in the Photo mode is 100%.
            Original mode                     File size ratio
                   Photo                           100%
                    Text                       Approx. 20%
    • Correlation between the compression rate and the file size (procedure (3))
      * The file size is 100%, with [MID] selected.
          Compression rate                    File size ratio
                    MID                            100%
                   HIGH                        Approx. 80%
• The adjustment may possibly diminish the image quality, as shown by the table below. Therefore, carefully
 perform the adjustment, while checking the scanned-in image.
         Procedures used                           Possible image degradation
   Any of procedures from (1) to (4) The photo image area may be blurred.
               (1) or (3)             Noise may be increase around text.
               (1) or (3)             Small-sized text may become illegible.
                  (4)                 Light-colored images may not be clearly scanned.
 Remarks
• Use the following steps to change the default resolution, original mode, compression rate and/or background
 adjustment options:
   (a) Press [USER FUNCTIONS] on the Control Panel to enter the "User Functions" menu.
   (b) Press [USER].
   (c) Press [SCAN].
   (d) Press the Next button several times to display the screen to change the default value in the desired Color
      mode.
   (e) In the "RESOLUTION," "ORIGINAL MODE," " COMPRESS" and/or "BACKGROUND
      ADJUSTMENT" option, press the desired button to change the default.
   * The default resolution can be selected on a color mode basis: Full color mode (including the Auto color
    mode), Gray scale mode and Black mode
      • The following resolution options are available as the default:
         • Full color mode (including Auto color mode): 600 / 400 / 300 / 200 / 150 / 100 (dpi)
         • Gray scale mode:                                 600 / 400 / 300 / 200 / 150 / 100 (dpi)
         • Black mode:                                      600 / 400 / 300 / 200 / 150 / 100 (dpi)
• Remember that when scanning the original in the Full color mode, if the original mode option is switched from
 the Text/Photo mode or the Photo to the Text mode, the file size may become larger.
* Both the service technician and the user can use procedure (1).
* The service technician must use only procedure (2) in [05 ADJUSTMENT MODE] (step (b) "To reduce the
 blurred area of text and photos"). Both the service technician and the user can use other procedures.
    <Note>      • Slim PDF will be available only if "FILE", "USB", or "SCAN TO E-MAIL" is selected in scan
                  mode to scan the original in the Full color mode or the Gray scale mode.
                • The image quality or file size in Slim PDF may be more affected than in JPEG or PDF,
                  depending on the environment (original placing direction) when the original is scanned. In
                  addition, the scanning will be slowed down.
                • Slim PDF is not suitable for the following originals. It is recommended to scan them in JPEG
                  or PDF.
                      • Originals blurred when scanned in JPEG or PDF
                        (If the original is scanned in Slim PDF, the image quality may be further diminished)
                      • Complicated originals such as tables or maps containing lines or small-sized text
                      • Originals where stable image quality is required, such as critical documents
(1) When scanning the original, press [SLIM PDF] on the Control Panel.
    After adjusting the original in Slim PDF, scan the original and check the scanned-in image quality.
    If the image quality adjustment in Slim PDF is necessary, use the next procedure.
         (a) Turn the original and place it. Or when scanning the original, press [SCAN SETTING] on the
            Control Panel. Change the "ROTATION" option to turn the original.
            After changing the "ROTATION" option, scan the original and check the scanned-in image quality.
            If further image quality adjustments are still necessary, the service technician must use the next procedure.
         (b) Select [05 ADJUSTMENT MODE]. Change the values for code [9104] and [9107] to adjust the
            image quality and resolution of a background.
                                  Recommended
               [05] code                                              Acceptable value range             Default
                                        value
                05-9104                    5                                   0 to 10                       5
                05-9107                 1 or 2                                 0 to 3                        1
            * Changing the value provides the effects below. Enter the value within the recommended value range.
              Otherwise, it may cause a loss in MFP performance, including degradation in the image quality.
                Set a smaller value: High compression (small file size), low image quality, and high scanning speed
                Set a later value:      Low compression (large file size), high image quality, and low scanning speed
         (a) Turn the original and place it. Or when scanning the original, press [SCAN SETTING] on the
            Control Panel. Change the "ROTATION" option to turn the original.
            After changing the "ROTATION" option, scan the original and check the scanned-in image quality.
            If further image quality adjustments are still necessary, use the next procedure.
         (b) When scanning the original, press [SCAN SETTING] on the Control Panel. Press [-] to decrease the
            sharpness intensity.
            * Decrease the sharpness intensity by 1 step from the current value.
         (a) When scanning the original, press [SCAN SETTING] on the Control Panel. Press [                 ] to decrease
            the background density.
    After decreasing the background density, scan the original and check the scanned-in image quality.
    Only if the user’s desired image quality is still not obtained after the above procedure has been performed,
    scan the original in JPEG or PDF.
5.5 To Sharply Scan the Original (To increase the sharpness intensity)
The image looks too soft and blurred. The edges are enhanced. The image looks sharp.
 Explanation
Adjust the sharpness intensity, in order to sharply scan the soft and blurred original.
* This adjustment will have an effect on the image scanned in all color modes (Full color, Gray scale, Black and Auto
 color).
 Procedures
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
 below. You can use one procedure in conjunction with another. But if this changes the image quality more than
 required or loses the effectiveness of the adjustment, restore the settings made in the previously used procedure
 to the original ones. Then use other procedures.
* Both the service technician and the user can use procedure (1).
* Only the service technician must use procedure (2).
(1) When scanning the original, press [SCAN SETTING] on the Control Panel. Press [+] to increase the
    sharpness intensity.
    After increasing the sharpness intensity, scan the original and check the scanned-in image quality.
    With the sharpness intensity set to the maximum, if further image quality adjustments are still necessary, the
    service technician must use the next procedure.
(2) Select [05 ADJUSTMENT MODE]. Change the values for codes [7430 to 7433],[7470], [8335], [8337],
    [8354] and [8375] to adjust the sharpness intensity.
                                                                                       Acceptable
      Color mode        Original mode [05] code            Recommended value                              Default
                                                                                       value range
                           Text/Photo       05-7430
                               Text         05-7431
          Black
                              Photo         05-7432
                           User custom      05-7470
                           Text/Photo       05-8354     Set a value larger than 128.      0 to 255          128
                               Text         05-8335
        Full color
                              Photo         05-8336
                           User custom      05-8375
        Gray scale              ---         05-7433
    * Setting "0" provides the softest image, while setting "255" provides the sharpest image.
Scan Scan
 Black is not dark enough, compared to the                         Black is enhanced and closely matched with
 original.                                                         the original hue.
 Explanation
When a full-color original is scanned, black is not dark enough, compared to the original. (In general, the
scanned-in image is likely to become less dark.) Finely adjust the black density of the scanned-in image, in order
to darken black and closely match it with the original hue.
* This adjustment will have an effect only on the image scanned in the Full color mode (including the Auto color
 mode).
 Procedures
* The service technician must perform all adjustments.
(1) Select [05 ADJUSTMENT MODE]. Change the values for codes [8314 to 8316] and [8371] to adjust the
    black density of a scanned-in image.
                                                                                           Acceptable
      Color mode        Original mode [05] code            Recommended value                                Default
                                                                                           value range
                          Text/Photo         05-8314       Set a value larger than 1.         0 to 4           1
                              Text           05-8315
        Full color
                             Photo           05-8316       Set a value larger than 0.          0 to 4           0
                          User custom        05-8371
    * Setting "0" provides the lightest black, while setting "4" the darkest.
 Explanation
When an original is scanned in the Black mode or the Gray scale mode, changing the scan density according to
density area (low-, medium- or high-density area) allows a user to adjust the reproducibility of halftones
(gradation). Adjust the gamma curve balance, in order to change the gradation, depending on the type of original
or at a user’s request.
* This adjustment will have an effect only on the image scanned in the Black mode or the Gray scale mode.
 Procedures
* The service technician must perform all adjustments.
(1) Select [05 ADJUSTMENT MODE]. Change the values for codes [7480] and [7485 to 7488] to adjust the
    gamma curve balance of the low-, medium- and high-density areas.
                                                                                                  Acceptable
      Color mode Original mode [05] code Subcode                    Recommended value                         Default
                                                                                                  value range
                           Text/Photo      05-7485       0/1/2
    * Set the value in increments of approximately 20, while checking the scanned-in image until the optimum
      value is obtained.
    * The subcode varies according to the area where the density is adjusted. Refer to the table below and set the
      subcode for the area to be adjusted.
          Subcode            Area where the density is adjusted
               0                        Low-density area
               1                        Medium-density area
               2                        High-density area
    * Gradation in the Black mode will vary, if the medium-density area is mainly adjusted. But remember that
      adjusting the low- or high-density area will rarely affect the gradation in the Black mode.
5.8 To Register the Original Mode Optimal for a Particular Type of Original
                                                                                 (To have "Custom" selected)
 Explanation
If the value for [05] code is adjusted in existing original mode (Text /Photo, Text, Photo or Gray scale), in order
to clearly scan a particular type of original, other types of original may not be clearly scanned. In this case, add
the original mode option adjusted for a particular type of original as "Custom (User custom)" mode. To have
"Custom" selected, add the value adjusted for [05] code in "Custom" mode to the one in reference original mode.
Select reference original mode for "Custom" from among the original mode options.
To have "Custom" in the Black mode, select the existing original mode option as reference original mode.
To have "Custom" in the Full color mode (including the Auto color mode) selected, select the existing original
mode or "e-document" mode option where the value has been adjusted to identify whiteout areas, as reference
original mode.
 Procedures
* Perform the adjustment in accordance with the procedures below.
* Only the service technician must use procedures (1) and (2).
* Both the service technician and the user can use procedure (3).
(1) Select [08 SETTING MODE]. Change the value for code [7401] or [8303] to select reference original mode
    for "Custom" mode from among the original mode options.
    • Select the original mode option, which is most likely to be matched with the image quality the user desires.
After selecting the reference original mode option, use the next procedure.
(2) Select [05 ADJUSTMENT MODE] to adjust the values in the Custom mode, in order to obtain the image
    quality the user desires.
    • Select the necessary value for [05] code in the table below.
                                                                                         Acceptable
      Color mode         [05] code                      Adjustment                                        Default
                                                                                         value range
                                        Range correction (Automatic density
                          05-7425                                                                             1
                                        adjustment)
                                                                                            0 to 1
                                        Range correction (Manual density
                          05-7426                                                                             0
                                        adjustment)
                          05-7441       Background adjustment                                                128
                          05-7470       Sharpness adjustment                                                 128
          Black           05-7475       Manual density adjustment center value             0 to 255          128
                          05-7478       Automatic density adjustment                                         128
                          05-7480       Gamma curve balance adjustment                                       128
                                        Background processing offset adjustment
                          05-8404                                                                            128
                                        (Automatic density adjustment)
                                                                                           0 to 255
                                        Background processing offset adjustment
                          05-8409                                                                            128
                                        (Manual density adjustment)
                                        Range correction adjustment (Automatic
                          05-8334                                                                             1
                                        density adjustment)
                                                                                            0 to 1
                                        Range correction adjustment (Manual
                          05-8365                                                                             0
                                        density adjustment)
                          05-8370       Background adjustment                              0 to 255          128
                          05-8371       Fine adjustment of black density                    0 to 4            0
                          05-8372       RGB conversion method selection                     0 to 3            0
                          05-8373       Saturation adjustment                                                128
        Full color
                          05-8375       Sharpness adjustment                                                 128
                          05-8380       Manual density adjustment center value                               128
                          05-8381       Manual density adjustment light step value         0 to 255          20
                          05-8382       Manual density adjustment dark step value                            20
                                        Background processing offset adjustment
                          05-8389                                                                            128
                                        (Automatic density adjustment)
                                        Background processing offset adjustment
                          05-8394                                                                            128
                                        (Manual density adjustment)
    * For further information regarding the codes, refer to the Service Manual.
    <Note>        Select the code for the Custom mode option, in order to adjust the value for [05] code in the
                  Custom mode. Never adjust any values for [05] code in existing original mode.
After adjusting the value in the Custom mode, use the next procedure.
(3) When scanning the original, press [SCAN SETTING] on the Control Panel. Select "Custom" from among
    the original mode options.
 Explanation
The white void amount around the scanned image is adjusted. Since the void amount is very small in the stored
image in scanning, shading may appear around the scanned image due to a slight difference of the original size.
This can be eliminated by adjusting the setting value.
 Procedures
* All the steps in the adjustment procedure shall be performed by the service technician.
(1) Select [05 ADJUSTMENT MODE]. Change the value for the code [7489] to adjust the white void amount
    around the scanned image.
                                                                                  Acceptable
         [05] code                    Setting value (Target)                                            Default
                                                                                  value range
                         The setting value "1" corresponds to 1 dot with 600
            05-7489                                                                  0 to 255               0
                         dpi, that is "24" to 1 mm.
* When the value increases, the white void around the scanned image becomes wider, and the data on the image
decrease.
 Explanation
When a color original is scanned, adjustment can be made for clear reproduction of a vivid yellow as shown
above.
 Procedures
* Perform the adjustment in accordance with the procedures below.
* Both the service technician and the user can use all steps of this adjustment.
(2) Press [SCAN] on the control panel, and then [+] in [SATURATION] to increase the saturation of the copy
image.
<Note>
• This increases the saturation not only for yellow but also for other colors.
After adjusting the saturation, copy and check the copy image quality.
If the yellow does not become vivid even though the saturation is increased, try the next procedure.
(3) Press [SCAN] on the control panel, and perform color balance adjustment.
<Note>
• This adjustment influences not only yellow but also other colors.
After adjusting the color balance, copy and check the copy image quality.
 Explanation
If streaks occur in scanning with the DF, this problem can be solved by cleaning the original glass in the DF.
Moreover, they can be made inconspicuous by changing the setting of the following self-diagnostic code.
 Procedures
* Perform the steps in order as listed below.
* Both the service technician and the user can use step (1).
* Only the service technician can use step (2).
<Notes>
Normally, the use with the factory default setting (Disabled) is recommended since the adjustment may decrease
the reproducibility of fine characters and lines.
(1) Press [Scan Setting] on the touch panel and select [ADF Scan Noise Reduction].
    By pressing [Low], [Middle] or [High], adjust the noise reduction level to reduce streaks in scanning with
      the DF.
    After adjusting, perform scanning and check its image quality.
    When the noise reduction level for each [Low], [Middle] or [High] is changed, the service technician must
    perform the following step.
(2) Enter [05 ADJUSTMENT MODE] and change the setting values for the codes from [7400] to [7404] and
    from [8412] to [8415] to adjust the noise reduction level.
                                                                                   Acceptable
                                                   [05]       Recommended
      Color mode           Original mode                                             value           Default
                                                   Code           value
                                                                                     range
                             Text/Photo           05-7401
        White and               Text              05-7402
         Black                  Photo             05-7403
                             User custom          05-7400
                             Text/Photo           05-8413          90 to 120          0 to 200         100
                                Text              05-8414
         Full color
                                Photo             05-8415
                             User custom          05-8412
        Gray scale               ---              05-7404
    * Setting "200" provides the weakest noise reduction level, while setting "1" provides the strongest one.
      Moreover, when "0" is set for the setting value, this function becomes disabled.
    * The noise reduction level for each [Low], [Middle] or [High] of [ADF Scan Noise Reduction] set from the
       touch panel is changed. Setting the recommended value provides the most effective result.
After changing the setting value, perform scanning and check its image quality.