{TheoryGuide}{Production}{KodakServiceSupport}{Internal}

Publication No. TG8850-1

05OCT20

THEORY GUIDE
for the
Kodak S2085f, S3060, S3060f, S3100,
S3100f, and S3120 Scanners
Service Codes: 8850, 8851, 8852, 8854,
8855, and 8856
Important
Qualified service personnel must repair this equipment.
PLEASE NOTE The information contained herein is based on the experience and knowledge relating to the
subject matter gained by Kodak Alaris prior to publication. Nothing contained herein shall be
construed as conferring by implication, estoppel, or otherwise, any license under any patent,
trade secret, trademark or any existing copyright, except as specified herein.
Kodak Alaris reserves the right to change this information without notice, and makes no
warranty, express or implied, with respect to this information. Kodak Alaris shall not be liable for
any loss or damage, including consequential or special damages, resulting from any use of this
information, even if loss or damage is caused by negligence or other fault by Kodak Alaris.
This equipment includes parts and assemblies sensitive to damage from electrostatic
discharge. Use caution to prevent damage during all service procedures.

Table of Contents
Description Page

Equipment Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Main Subsystems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Document Transport, Monitoring, and Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Elevator System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Transport System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Feeder System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Multifeed Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Imaging System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Printer Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Image Capture and Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
CIS Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Image Processing Subsystems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Memory Image Buffer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Controller Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Sensor I/F Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Operator Control Panel (OCP) Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
On / Off Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Operator Control Panel (OCP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Host Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Host Computer Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Publication History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2 TG8850-1 – 05OCT20
 Equipment Description

Section 1: Equipment Description

Overview
Features and Functions

Feature / Function Description

Recommended pages maximum 35,000 sheets per day
per day
Document transport • Automatic Document Feeder (ADF)
• Intelligent Document Protection (IDP)
• Input Tray capacity: up to 300 sheets of 20-lb / 75 g/m2 bond paper
• C-shape and straight through (optional Rear Exit)
• multiple document feed (multifeed) error detection
Color and grayscale • 75, 100, 150, 200, 240, 250, 300, 400, 500, 600, and 1200 dpi output
Image processing • selectable color dropout
• automatic or “fixed” cropping
• auto-color detect
• photo segmentation
• iThresholding: best / better
• text enhancement: thinning / thickening
• skew detection and correction
Bitonal Image • 75, 100, 150, 200, 240, 250, 300, 400, 500, 600, and 1200 dpi output
processing • automatic or “fixed” cropping
• automatic or “fixed” thresholding
• half-tone removal
• majority rule filter
• image reversal
Maximum scanning Scanning Mode /
speeds (ppm) for portrait Resolution S2085f S3060 S3060f S3100 S3100f S3120
(based on default bitonal / 200 dpi 85 60 60 100 100 120
settings)
bitonal / 300 dpi 85 60 60 100 100 120
color / 200 dpi 85 60 60 100 100 120
color / 300 dpi 85 60 60 100 100 120
Embedded imaging Page detection Improved over previous Scanners for leading and trailing edge
processing and Image detection. The larger skew angle allowance for documents supports
capture process scanning without cutting off the corners of images.
Image Scanners automatically detect high-resolution graphics, and
segmentation separate them from the document.
Sleeve scanning Lets operators scan A3 / 11 x 17-in. folded documents, fragile
documents, and multiple documents in a KODAK Carrier Sleeve.

TG8850-1 – 05OCT20 3
Equipment Description

Feature / Function Description

Compression formats • color and grayscale – JPG and uncompressed TIFF
• bitonal – G4 and uncompressed TIFF
Hardware Interface / • USB 2.0 and 3.2 Gen 1x1 (includes USB 3.1 and 3.0)
connection types • Gigabit Ethernet (10/100/1000)
EasySetup Installation Allows for the creation of a secure document to configure network and scanner settings
option
Barcode reading Can read 10 types of barcodes and detect six barcodes per image
Host Computer Drivers • TWAIN
• TWAINDSM
• ISIS
• WIA
• SANE for LINUX Systems
• TWAIN for LINUX Systems
Operator Control Panel 3.5 in. / 89 mm touchscreen display
(OCP)
Web API Allows scanner control through a restful HTTP Application Programming Interface (API),
enabling customers to develop custom applications that can initiate scanning without
using a scanner driver
Scanner Security • Secure Boot – protects the customer scanning operation by ensuring that the
scanner starts up only with firmware that is trusted by the Original Equipment
Manufacturer (OEM). This security protects against physical tampering and attacks
on the firmware via the network or malware installed on the Host PC.
• SSL / TLS – used to encrypt scanned images before they are transferred over the
network to the Host PC

4 05OCT20 – TG8850-1
 CIS
TCM Present
LCD SPI Fan
TS I2c
M Background
IRQs
Pod Open PB OCP Board
4 Sensor PB
OCP I2C
LCD SPI PB Backlight
Barrel

TG8850-1 – 05OCT20
Paper 12V LDO 5V Switched Boost
Internal A4 )ODWEHd Connector I2C
Present 5V->3.3V

FFC
Expander

20pin
Sensor CPLD LDO
LEDs TSC
&,6 MODULE: Front StackUp Sensor I/F Board
Sensor MPS430 Clutch SPI/BACKLIGHT

2
Main Subsystems

(POD) Standard 5V/-5V With Local Diode

24V Switched 8''6/IDP 5V->3.3V

wires
I2C TBD
B filter & gain LDOs LDO
& Expander stage 4
Connector 50pin FFC
GND
20pin FFC TouchVFUHHQ
40pin FFC SB I2C
USB 2.0 3 pin UDDS/IDP Rx
2

OCP I2C
wires

Stackup
LVDS CLOCK OUT 40pin FFC LCD SPI LCD w/
5CH LVDS VIDEO Clutch touch
Power: 3.7V & LED UDDS Rx screen
SPI for AFE IDP
BG motor
UDDS/IDP R;
5V Switched/8V/-8V Optional SPI CLK twisted pair
P2'
Platen Power Video Sensor Board
LCD SPI Clutch F LED
(Front)
External USB2.0 USB2 Drive Drive
Base Flat Bed USB 2.0 R LED
Hub LEDs
Drive
Video LVDS CLOCK OUT Video &,6 MODULE:Rear
Video Port (Rear) 5CH LVDS VIDEO LVDS
40pin FFC

PC USB3.0 Power: 3.7V & LED (Base)

Optional Pantum Host FPGA SPI for AFE
AM5746 SPI COM
TCM Board
Motor
PC USB GigE GigE Phy Drivers Optional
Host 3.0 Network PMIC VDD 3V3
& Mag 12V SOC Fan 4
V3P3 8V/-8V 36V Boost M Background

DDR2
DDR2
DDR2
DDR2

256 MB,
256 MB,
256 MB,
256 MB,
PS 3V3 V24 Switched V3P7 5V Switched
24VDC Input Power V5 Printer I/F UDDS Tx Base Connector 4
Amethyst Controller Board M Elevator
from Off Guring Motor
external 3RZHU6DYHU
PRGH 24VDC 4
supply Transport
from M Motor1
UART Comm
external 24V Switched
supply Printer Reset 4 Transport
On Guring M
6 pin Motor2
3RZHU6DYHU or TCM
PRGH
Base harness

2 Elevator Home
2 Sensor
+DVPoweU External
On ZKHQ Guring3RZHU Cable
Pushbutton On/Off
SRZHULV2II 6DYHUPRGH Optional 3 Assy
but not used LRP Printer Fan
Tablerock
Driver Bd Carriage
FFC

(Excessory) with Flex 2

Functional and Interconnect DiagramIRU UDDS
alaris .2'$.6I66I66I Twisted Pair
T;
DQG66FDQQHUV

5
Equipment Description
Equipment Description

Subsystem Description See:

Document • detects a document in the Input Tray and lifts the ELEVATOR to Document Transport,
Transport, the “feed” position Monitoring, and Control
Monitoring, and • automatically feeds documents through the Transport System
Control
• detects the leading and trailing edges of documents
• detects if more than one document enters the Transport System
at the same time
• controls the Transport Motors and Clutch for the Scanner
• if a Printer is installed and the operator selected this option, prints
a line of alphanumeric characters on the back side of a document
Image • illuminates a document for scanning and receives image data to Image Capture and
Capture and send to the Image Processing subsystem Processing
Processing • uses CIS Modules that change the light reflected from the
document to analog signals that represent pixels and then change
the analog signals to digital signals
• provides deskewing, border removal, and color and grayscale
processing
• compresses and stores images for transfer to the Host Computer
Power • uses an external DC Power Supply to provide power to the
Distribution Scanner
• employs the ENERGY STAR® standard to keep power use low
when the Scanner is idle for a period of time
Boards • control the scanner operation including the management of Boards
subsystems, sensors, and motors
• perform image processing and host communications
Operator Control Provides Operator Control Panel
Panel (OCP) • messages about the operational status of the Scanner (OCP)
• Buttons to start and stop the Scanner
• a LCD touchscreen
Host Computer • lets the operator select scanning options and initiate scanning Host Computer
• stores and displays scanned (processed) images

6 05OCT20 – TG8850-1
 Sequence of Operation

Section 2: Sequence of Operation

1. The operator places one or more documents in the INPUT TRAY and uses a scanning application to start the
scanning operation.
2. The PAPER PRESENT SENSOR (lightpipe) detects paper in the INPUT TRAY. The ELEVATOR moves up until
the STACK-UP SENSOR is detected.
3. The FEED MOTOR and TRANSPORT MOTOR start the TRANSPORT SYSTEM. The LEDs inside the CIS
MODULES illuminate.
4. The FEED CLUTCH starts the FEED ROLLERS that move documents through the TRANSPORT SYSTEM. The
TAKEAWAY ROLLERS pull the document into the Scanner, and the DRIVE ROLLERS move the document
through the Scanner to the OUTPUT TRAY.
5. The UDDS / IDP RECEIVER (RX) and TRANSMITTER (TX) SENSORS operate to detect the leading and trailing
edges of documents and provide the correct timing to feed individual documents. The UDDS / IDP RX also
detects a document that is starting to jam in the TRANSPORT and stops the TRANSPORT MOTORS to prevent
excessive damage to the document.
6. Documents move across the CIS (Contact Image Sensor) MODULES as they are transported through the
Scanner.
7. The CIS MODULES capture the document image in color data and change the reflected light to RGB analog
electrical signals that are digitized.
8. Image processing components in the Scanner change the analog signals to digital information, remove artifacts
from digital images, and send digital data (from the CIS MODULES) through the image processing chain, and
then send the images to the Host Computer using the USB or Ethernet connection.
9. If the operator selected image processing features, the Scanner processes the images and provides finished
images to the destination that the operator selected.
10. When scanning is complete, documents move to the OUTPUT TRAY. When documents require special handling,
the operator can use the optional REAR DOCUMENT EXIT to provide a straight-through paper path that allows
exception documents to bypass the C-path portion of the transport to help reduce document jamming.

TG8850-1 – 05OCT20 7
Document Transport, Monitoring, and Control

Section 3: Document Transport, Monitoring, and Control

Overview
OUTPUT TRAY

NORMAL FORCE
ROLLERS

PAPER
PRESENT SENSOR
EMITTER / STACK-UP BOARD DRIVE
DETECTOR SENSOR ROLLERS
FEED UDDS /
MODULE IDP RX
BACKGROUND
INPUT TRAY CIS MODULE ASSY

PAPER
REAR
PRESENT TAKEAWAY
EXIT
SENSOR ROLLERS CIS MODULE DIVERTER
(lightpipe) ELEVATOR UDDS FEED BACKGROUND
DOWN SENSOR TRANSPORT
TX MOTOR ASSY MOTOR
SEPARATION
ROLLERS
C101_0029HC

The Document Transport, Monitoring, and Control Subsystem:

• detects documents in the Input Tray and lifts the Elevator to the feed position
• automatically feeds documents into and through the Scanner
• detects the leading and trailing edges of documents, multifeeds, and paper jams
• stacks documents in the Output Tray
• prints information on documents if the optional Printer Accessory is installed and enabled

This Subsystem includes the following components:

• Elevator System
• Transport System
• Feeder System
• Sensors
• Imaging System
• Printer Accessory

8 05OCT20 – TG8850-1
 Document Transport, Monitoring, and Control

Elevator System

EDGE
GUIDE
PAPER
PRESENT
SENSOR
(lightpipe)
EDGE
GUIDE
ELEVATOR
MOTOR

INPUT
TRAY

PINION
ELEVATOR GEAR
DOWN “HOME”
SENSOR

The ELEVATOR SYSTEM keeps one or more documents in the INPUT TRAY at the correct position to automatically
feed for scanning. The ELEVATOR SYSTEM includes the following components.

Component Description
INPUT TRAY Holds up to 300 sheets of 20-lb / 75 g/m2 bond paper for scanning. The operator can scan
one document at a time or set the Scanner to automatically scan a batch. The INPUT
TRAY has movable EDGE GUIDES to adjust for the size of documents to be scanned.
PAPER PRESENT Reflects the infrared light to detect when one or more documents are inserted in the
SENSOR (lightpipe) INPUT TRAY.
ELEVATOR DOWN Detects when the INPUT TRAY is in the down (“Home”) position.
“HOME” SENSOR
STACK-UP SENSOR Detects when the INPUT TRAY is in the up position. In the up position, the FEED
ROLLERS feed the top document in the INPUT TRAY into the TRANSPORT SYSTEM.
ELEVATOR MOTOR Rotates the PINION GEAR to move the INPUT TRAY up or down.
The ELEVATOR MOTOR is a stepper motor connected to the CONTROLLER BOARD
and controls the actions of the ELEVATOR MOTOR including:
• speed of the motor
• torque of the motor
• direction of the motor, causing the INPUT TRAY to move up or down
• start and stop
• current position
When the ELEVATOR MOTOR is running, it operates until the Control FPGA detects a
signal from the STACK-UP SENSOR or ELEVATOR DOWN SENSOR. The Control FPGA
counts the steps of the motor and stops the motor if a maximum number of steps is
exceeded.
PINION GEAR The PINION GEAR moves the INPUT TRAY up and down.

TG8850-1 – 05OCT20 9
Document Transport, Monitoring, and Control

Sequence of operation:
1. The operator places one or more documents in the INPUT TRAY.
2. The PAPER PRESENT SENSOR (lightpipe) no longer reflects infrared light to the SENSOR BOARD, and the
SENSOR BOARD sends a signal to CONTROLLER BOARD.
3. When feeding documents, the FEED MODULE moves up until it blocks the STACK-UP SENSOR.
4. The STACK-UP SENSOR sends a signal to the CONTROLLER BOARD.
5. The CONTROLLER BOARD energizes the ELEVATOR MOTOR.
6. The ELEVATOR MOTOR rotates the PINION GEAR. The GEAR moves the INPUT TRAY up until the top
document is in the feed position.
7. The FEED MODULE moves the documents one at a time into the SCANNER.
8. When the INPUT TRAY is empty, the PAPER PRESENT SENSOR (lightpipe) is no longer blocked and reflects
the light to the SENSOR BOARD which then sends a signal to the CONTROLLER BOARD.
9. The ELEVATOR MOTOR rotates the PINION GEAR driving the INPUT TRAY down.
10. When the INPUT TRAY moves to the “Home” position, a flag blocks light from the ELEVATOR DOWN SENSOR
and sends a logic high signal to the CONTROLLER BOARD.

10 05OCT20 – TG8850-1
 Document Transport, Monitoring, and Control

Transport System
OUTPUT TRAY

NORMAL FORCE
ROLLERS

PAPER
PRESENT SENSOR
EMITTER / STACK-UP BOARD DRIVE
DETECTOR SENSOR ROLLERS
FEED UDDS /
MODULE IDP RX
BACKGROUND
INPUT TRAY CIS MODULE ASSY

PAPER
REAR
PRESENT TAKEAWAY
EXIT
SENSOR ROLLERS CIS MODULE DIVERTER
(lightpipe) ELEVATOR UDDS FEED BACKGROUND
DOWN SENSOR TRANSPORT
TX MOTOR ASSY MOTOR
SEPARATION
ROLLERS
C101_0029HC

The TRANSPORT SYSTEM moves documents through the Scanner.

Component Description
INPUT TRAY The INPUT TRAY:
• holds documents to be scanned
• holds up to 300 sheets of 20-lb / 75 g/m2 bond paper
• can be adjusted for variations in the size of documents to be scanned
The operator can scan one document at a time or set the SCANNER to automatically scan up to
300 documents.
OUTPUT The OUTPUT TRAY holds the documents after they are scanned. The OUTPUT TRAY can be
TRAY adjusted for variations in paper size.
UPPER Includes NORMAL FORCE ROLLERS (NFRs) that press the documents onto the TAKEAWAY and
TRANSPORT DRIVER ROLLERS in the LOWER TRANSPORT to provide the friction necessary to move the
documents through the TRANSPORT SYSTEM.
DIVERTER • The DIVERTER:
– allows exception documents to exit at the back of the SCANNER via the optional REAR
EXIT
– is enabled by pressing a lever located on the back of the SCANNER
– is disabled manually so documents exit normally to the OUTPUT TRAY

TG8850-1 – 05OCT20 11
Document Transport, Monitoring, and Control

Component Description
LOWER Includes:
TRANSPORT • SEPARATION ROLLERS that hold the bottom documents in position and allow only the top
document in the INPUT TRAY to enter the TRANSPORT SYSTEM
• TAKEAWAY ROLLERS that move faster than the FEED ROLLERS to keep tension on
documents
• DRIVE ROLLERS that keep the documents flat and moving at a continual speed across the
Imaging System
• CIS MODULE
• BACKGROUND ASSY
FEED Includes URGING ROLLERS and FEED ROLLERS that move documents from the INPUT TRAY
MODULE to the TAKEAWAY ROLLERS. The ROLLERS are controlled by the FEEDER CLUTCH.
MOTORS The CONTROLLER BOARD uses operational data from the SCANNER to control the operation of
the MOTORS:
• energizing and de-energizing
• “ramp-up” speed
• running speed
• torque
The CONTROLLER BOARD increases the power to the MOTORS.

Note
The MOTORS have DRIVERS with internal thermal protection circuits that can cause the MOTOR
to stop immediately. For example, if a mechanical bind or electrical short circuit occurs in the drive
system, the DRIVER can run hot and stop operation of the SCANNER.
• Transport and Feeder MOTORS are energized during:
– normal scanning
– image, UDDS, and mechanical calibrations
– diagnostics for the TRANSPORT MOTOR
– “count-only” mode
– diagnostics for the PRINTER ACCESSORY
• Transport and Feeder MOTORS are de-energized if:
– the INPUT TRAY is empty
– the operator stops the scanning operation
– there is a paper jam
– the operator disabled the “count-only” mode or diagnostics for the TRANSPORT MOTOR
or PRINTER
– the Interlock Switch is open
– more than one document is detected in the TRANSPORT SYSTEM, and the system is set
to stop operation when this condition occurs

12 05OCT20 – TG8850-1
 Document Transport, Monitoring, and Control

Feeder System

FEEDER
FEED MODULE CLUTCH

MICRO- MACHINE PRE-SEPARATION UDDS / IDP

CONTROL PAD RX
PROCESSOR
FPGA

CONTROLLER BOARD
UDDS
SEPARATION TX
ROLLERS TAKEAWAY
ROLLERS
FEEDER
C101_0032BC
MOTOR

The FEED MODULE feeds individual documents into the SCANNER from the INPUT TRAY to the ROLLERS in the
LOWER TRANSPORT.

Component Description
FEED MODULE The FEED MODULE includes four FEED ROLLERS that move documents from the
INPUT TRAY into the ROLLERS of the LOWER TRANSPORT.
FEEDER CLUTCH The FEEDER CLUTCH engages a GEAR that allows the FEEDER MOTOR to drive
the four FEED ROLLERS of the FEED MODULE.

The FEEDER CLUTCH is:

• engaged
– during scanning
– during calibrations
– when diagnostics are running
• disengaged
– after a small distance / time after the leading edge is detected by the UDDS
Sensors
– if the operator stops the scanning operation
UDDS / IDP RX and The UDDS SENSORS provide information necessary to feed each document at the
UDDS TX SENSORS correct time. When the leading edge of the document moves between the
TRANSMITTER and RECEIVER, the SENSORS become blocked causing the
FEEDER CLUTCH to disengage.
PRE-SEPARATION PAD The PRE-SEPARATION PAD has a rubber surface to keep the documents separated
to allow only one document at a time to move into the FEED ROLLERS.
SEPARATION ROLLERS Two SEPARATION ROLLERS hold the bottom documents in position and allow only
one document to enter the FEED ROLLERS.
FEED MOTOR The FEED MOTOR drives the FEED MODULE.
TAKEAWAY ROLLERS The TAKEAWAY ROLLERS ensure that one sheet is fed at a time.

TG8850-1 – 05OCT20 13
Document Transport, Monitoring, and Control

Sensors
Overview
OUTPUT TRAY

NORMAL FORCE
ROLLERS

PAPER
PRESENT SENSOR
EMITTER / STACK-UP BOARD DRIVE
DETECTOR SENSOR ROLLERS
FEED UDDS /
MODULE IDP RX
BACKGROUND
INPUT TRAY CIS MODULE ASSY

PAPER
REAR
PRESENT TAKEAWAY
EXIT
SENSOR ROLLERS CIS MODULE DIVERTER
(lightpipe) ELEVATOR UDDS FEED BACKGROUND
DOWN SENSOR TRANSPORT
TX MOTOR ASSY MOTOR
SEPARATION
ROLLERS
C101_0029HC

The SENSORS detect if a document is in the INPUT TRAY or TRANSPORT SYSTEM. The SENSORS provide this
information to the Controller Board which controls the actions of the ELEVATOR and FEEDER SYSTEMS. The
UDDS Sensors provide timing information to the Imaging System.

Component Description
PAPER The PAPER PRESENT SENSOR (lightpipe) is located in the INPUT TRAY and reflects infrared
PRESENT light. This SENSOR is part of the PAPER PRESENT SENSOR System.
SENSOR
(lightpipe)
ELEVATOR The ELEVATOR DOWN (“HOME”) SENSOR is a slotted infrared SENSOR located on the right
DOWN side of the INPUT TRAY. It detects when the INPUT TRAY is in the down position.
(“HOME”) When the INPUT TRAY is in the HOME position, a FLAG blocks light from the detector and
SENSOR provides a logic high signal to the CONTROLLER BOARD. The Sensor Circuit sends a signal to
the CONTROLLER BOARD to stop the ELEVATOR MOTOR and provides information about the
position of the INPUT TRAY.
PAPER When one or more documents are placed in the INPUT TRAY, the infrared light from the PAPER
PRESENT PRESENT EMITTER is blocked from the PAPER PRESENT SENSOR (lightpipe) and does not
EMITTER / reach the DETECTOR. The SENSOR BOARD sends a signal to the CONTROLLER BOARD
DETECTOR indicating that there are documents in the INPUT TRAY. The CONTROLLER BOARD starts the
operation of the FEED MODULE.

14 05OCT20 – TG8850-1
 Document Transport, Monitoring, and Control

Component Description
STACK-UP The STACK-UP SENSOR is a “slotted” infrared SENSOR located immediately above the FEED
SENSOR MODULE. It detects when the FEED MODULE is in the up position.
When the INPUT TRAY is in the up position, the top document in the TRAY rotates the FEED
MODULE and a FLAG moves to allow light to reach the detector. The detector provides a logic
high signal to the Controller Board. The Sensor Circuit sends a signal to the Control FPGA to stop
the ELEVATOR MOTOR from moving the INPUT TRAY up.
When documents are feeding into the SCANNER, the FEED MODULE rotates downward until it
blocks the STACK-UP SENSOR. The SENSOR provides a logic low signal to the Controller
Board, and the Sensor Circuit sends a signal to the Control FPGA to drive the ELEVATOR
MOTOR to move the INPUT TRAY up to keep the top document in the feed position.
UDDS / IDP The UDDS SENSORS detect if one or more documents move into the SCANNER at the same
RX and time, and provide information that is necessary for the timing of scanning operations. Information
UDDS TX from the UDDS SENSORS is also used to determine if a paper jam has occurred
SENSORS The UDDS SENSORS provide information about the position of the document in the
TRANSPORT SYSTEM. When the leading edge of the document moves between the
TRANSMITTER and RECEIVER, the SENSORS become blocked causing the FEEDER
CLUTCH to disengage.
The UDDS SENSOR has an
• ultrasonic transmitter with operation similar to a speaker located in the LOWER
TRANSPORT
• ultrasonic receiver with operation similar to a microphone located in the UPPER
TRANSPORT
Information about the status of the UDDS SENSORS is sent to the CONTROLLER BOARD to
control the actions of the FEEDER CLUTCH.

TG8850-1 – 05OCT20 15
Document Transport, Monitoring, and Control

Multifeed Detection
Multifeed detection ignores the first 2.54 cm / 1.00 in. from the top (leading edge) and last 2.86 cm / 1.125 in. from
the bottom (trailing edge) of each document. For example, if you feed a 10.16 cm / 4.00 in. document, the opportunity
for a “multifeed” detect is 4.76 cm / 1.875 in.
There are approximately 60 samples taken per inch. A multifeed will be identified under these conditions:
• 20 consecutive samples
• 30 samples within a 60-sample window or 50 percent of samples
A multifeed is detected by the amplitude and phase of the UDDS receiver signal. Detection levels are established by
low, medium, and high settings in SVT. When a sample from a 60-sample window crosses the detection level for
amplitude, phase, or both, a multifeed double is declared. The doubles are counted to determine if a multifeed
occurred. This equates to 20 consecutive double samples or 30 double samples within a 60-sample window for a
multifeed to be identified.
The three settings for multifeed detection are:
• Low
• Medium
• High
When scanning documents that are difficult to detect (e.g., thin documents), the high setting might be used so that
multifeeds are not missed. It is possible that using the high setting could produce more false multifeeds. When
scanning thick, heavyweight documents (e.g., 110 lb), the low setting might be used to reduce false multifeed issues.
It is possible that using the low setting could cause some actual multifeeds to be undetected.

Imaging System
Overview
The imaging system includes the CIS Modules with integrated LEDs and Imaging Guides, and flippable Background
Assemblies. For more information, see Image Capture and Processing.

LEDs
The LED Arrays have two conditions:
• Illuminated - during calibration, diagnostics, and scanning
• Not illuminated - when the scanner is de-energized

16 05OCT20 – TG8850-1
 Document Transport, Monitoring, and Control

Printer Accessory
The SCANNER uses an optional PRINTER ACCESSORY to print a line of alphanumeric characters on the back side
of documents after they are scanned.
Operators can configure the driver setting to:
• enable or disable the PRINTER
• define the information to print on the document
• set up and test the PRINTER
Sequence of operation:
1. The Host Computer sends the information to be printed to the microprocessor on the CONTROLLER BOARD.
2. The microprocessor makes a bit map matrix pattern in its memory for the font and information to print.
3. When the document is in position for printing, the CONTROLLER BOARD starts high-speed transfer of the dot
matrix information to the Print Head.
4. The Print Head prints the information on the document.

TG8850-1 – 05OCT20 17
Image Capture and Processing

Section 4: Image Capture and Processing

Overview
Sequence of operation:
1. The CIS MODULES capture an image of each document in color. The CIS MODULES change the light reflected
from the document to analog electrical signals and then to digital data.
2. The CIS MODULES send the digital color data to the Controller Board. The Controller Board creates the
grayscale and bitonal images from the color data.
3. The Image Processing Subsystems apply calibration corrections, color enhancements, and operator-selected
processing, and compress the image data.
4. The SCANNER provides the following types of images from the compressed image data:
• color
• grayscale
• bitonal
5. The SCANNER processes each image using the settings selected by the operator.
All image processing occurs in the SCANNER. The operator uses the customer application to select image
processing features that the SCANNER executes and the directory to use to store the image files on the Host
Computer after processing.

CIS Modules

CIS MODULE
(scanner base)

CIS MODULE
(scanner base)
BACKGROUND
ASSY
Top View Bottom View

Note
The image above shows the CIS MODULE and BACKGROUND ASSY for the SCANNER BASE. The same
components are used in the SCANNER POD.
The CIS MODULES:
• illuminate the document
• receive the light image
• change the light image to analog data
• change the analog data to digital data
• send the digital data to the CONTROLLER BOARD
The upper CIS MODULE scans the top of the document and the lower CIS MODULE scans the bottom of the
document.

18 05OCT20 – TG8850-1
 Image Capture and Processing

Component Description
LEDs Illuminate each document as it moves through the TRANSPORT SYSTEM.
CONTACT IMAGE Receives the light image and routes it to the LENS.
SENSOR (CIS)
MODULES
LENS Focuses the light image.
CIS MODULE BOARD • Receives clock and timing signals from the CONTROLLER BOARD.
• Receives the light from the LENS.
• CIS Imagers convert light to RGB analog signals; the CIS MODULES convert
analog data to digital data and sends it to the CONTROLLER BOARD.

Image Processing Subsystems

The CONTROLLER BOARD receives the digital pixel data from the CIS MODULES. The CONTROLLER BOARD
applies calibration, color correction(s), and other image processing to images. Images are then compressed and
stored briefly in the IMAGE BUFFER before they are sent to the Host Computer via USB or Ethernet.

Memory Image Buffer

The Memory Image Buffer on the CONTROLLER BOARD stores the digital images before the images are sent to the
Host Computer. The Memory Image Buffer allows the image processing on the Scanner to occur at a different rate
than the rate at which the SCANNER DRIVER on the Host Computer pulls the images from the Image Buffer. The
Scanner stores images in the Memory Image Buffer until the Host Computer is ready to retrieve and receive them.

Component Description
Image Buffer Control When the SCANNER is energized, the control microprocessor provides program
data to the Image Buffer Control. The ARM PROCESSOR manages the Image
Buffer.
Memory Image Buffer The Memory Image Buffer receives and stores compressed images from the Image
Processing Subsystems on the CONTROLLER BOARD.

TG8850-1 – 05OCT20 19
Image Capture and Processing

Calibration
Calibration includes image, mechanical, and UDDS procedures for the ADF.

Calibration Type Description

Image Image calibration is required for all Scanners. Each imager consists of 16 individual
scan chips; each chip has its own output characteristics. There is also variability due to
the selfoc lenslets and illumination variability across the width of the scan.

Image calibration uses the white 30.5 x 30.5 cm / 12 x 12 in. Calibration Target (part
number 7B7858).

Calibration procedure:
1. The TARGET is scanned at 300 dpi.
2. The LED illumination is adjusted so the video signals are in the proper range.
3. The dark offsets are calculated for each pixel.
4. A “normalization table” gain is calculated for each pixel.
5. Steps 1-4 are repeated for scanning at 600 dpi.
Mechanical Adjusts for physical variations between the CIS MODULES in the SCANNER.
Mechanical calibration determines the X and Y positions of the document that indicate
the cropping lines.

Mechanical calibration uses the white 30.5 x 30.5 cm / 12 x 12 in. Calibration Target
(part number 7B7858).
Ultrasonic Document Adjusts the baseline level for detecting a single document and determines threshold
Detection System settings for detecting multiple documents. UDDS calibration uses an A4-size sheet of
(UDDS) 75-80 g/m2 bond paper or letter-size sheet of 20-lb bond paper.

20 05OCT20 – TG8850-1
 Boards

Section 5: Boards
There are four boards that control the operation of the SCANNER.

Controller Board
The CONTROLLER BOARD contains the main processor and FPGA that control all Scanner functions including
• the complete image processing chain; image capture, image processing, and buffering
• all motor and sensor operations
• all other subsystem controls: Printer, UDDS / IDP RX, OCP, Secure Boot
• sending image data to the Host Computer via USB or Ethernet
The Controller Board is capable of executing the following image processing functions.

Image Processing
Function Description
Color and Grayscale Image Output

JPEG compression Provides the following levels of compression quality:

• Draft
• Good
• Better
• Best
• Superior
• None - no compression, output is an image file in TIFF format
ACD processing Automatic Color Detection (ACD) - by counting the number of colorful pixels in the
image data and comparing it to the threshold values provided by the Driver (TWAIN or
ISIS), this process determines if a color or bitonal image should be returned to the
Host Computer.
Auto-cropping, normal Detects the edges of the document and removes the edges. This feature might leave a
mode black edge on documents up to 1.58 cm / 0.0625 in. wide. This feature keeps
information near the edge of the document from being removed.
Auto-cropping, Automatically determines the minimum edge width on a document to make a
aggressive mode rectangular document with no black edge.
Fixed cropping Removes the edges of documents as determined by user-defined settings.
Relative cropping Removes all parts of a scanned image indicated by the user. This feature allows users
to determine a given part of a scanned image to keep.
Skew detection Detects the angle of a document in the Transport System.
Deskew Uses the skew angle detected by the Scanner and adjusts the electronic image to
provide a straight image.
Color dropout Removes selected Pantone colors of red, blue, and green from the electronic image of
the scanned document.
Overscan Extends the scanning area in length and width to provide scanning of the entire
document.
Orthogonal rotation Rotates the scanned Image 90, 180, 270 degrees from the direction that the document
entered the Transport System.
Color correction tables Allows the user to select the color table to use in the scanned images. The color table
selected determines the color quality of the image.
Bitonal Image Output
Compression Provides the following options for compression - G4 or none

TG8850-1 – 05OCT20 21
Boards

Image Processing
Function Description
Auto-cropping, normal Detects the edges of the document and removes the edges. This feature might leave a
mode black edge on documents up to 1.5875 mm / 0.0625 in. wide. This feature keeps
information near the edge of the document from being removed.
Auto-cropping, Automatically determines the minimum edge width on a document to remove to make
aggressive mode a rectangular document with no black edge.
Fixed cropping Removes the edges of documents as determined by user-defined settings.
Relative cropping Removes all parts of a scanned Image indicated by the user. This feature allows users
to determine a given part of a scanned Image to keep.
Threshold Changes a grayscale image to a bitonal image.
Fixed thresholding Determines the threshold at which a grayscale or color pixel is determined to be black
or white for bitonal image output.
ATP (Adaptive Uses given contrast and threshold settings to determine the quality of bitonal images
Threshold made from grayscale image data. ATP separates the foreground information in the
Processing) Image from the background information.
iThresholding Automatic ATP. The Scanner automatically determines the correct contrast and
threshold settings to apply to the scanned Image.
Overscan Extends the scanning area in length and width to provide scanning of the entire
document.
Orthogonal rotation Rotates the scanned Image 90, 180, 270 degrees from the direction the document
entered the Transport System.
Error diffusion Provides a FILTER for a photographic area of a document to simulate gray levels and
also makes the edges of letters sharper in the bitonal image output.
Dithering Simulates gray levels in bitonal image output.
Skew detection Detects the angle of a document in the Transport System.
Deskew Determines the skew angle of a document when it moves through the Transport
System and then applies a rotation formula to remove the skew of the document.
Noise filter Removes small marks from bitonal image output.
Image filter Improves the bitonal image output for documents with dot matrix letters or shaded or
colored backgrounds with halftone screens.
Contrast Adjusts the difference between black and white values, making bitonal image output
sharper or softer.
Color/Grayscale, and Bitonal Image Output
Dual stream output Provides a color or grayscale and a bitonal version of an image at the same time.

Sensor I/F Board

The Sensor Board is responsible for:
• providing the status and sending signals from the following to the CONTROLLER BOARD: STACK-UP SENSOR
and PAPER PRESENT EMITTER / DETECTOR
• providing a passthrough for the
– FEEDER CLUTCH
– upper BACKGROUND ASSY
– OCP signals
• receiving the UDDS / IDP RX signal and preliminary signal processing
• filtering and amplifying the UDDS and IDP signals from the UDDS RX
• the on-board microprocessor that controls the operation of the PAPER PRESENT SENSOR (lightpipe)
• the STACK-UP SENSOR for the ELEVATOR

22 05OCT20 – TG8850-1
 Operator Control Panel (OCP)

Operator Control Panel (OCP) Board

The OCP Board is responsible for:
• the interface to the LCD including providing the backlight power and touchscreen control
• push button interface communication
• sensor communication for POD open

On / Off Board
The On / Off Board is responsible for:
• On / Off Button communication
• LED status for the Scanner

Section 6: Operator Control Panel (OCP)

Overview
The screens of the OCP and illumination of the POWER
BUTTON provide a quick visual of the operational
status of the SCANNER.
The OCP has screens and messages to communicate
the following operational states; see the User Guide for
more information.
• Ready
• Scanning
• Pause
• Waiting
You will also use the OCP and buttons to view and
change the Scanner Settings.

The Power Button illuminates, blinks, or is off to indicate the Scanner status.

Status of Power Button Status of Scanner

On (steady) The Scanner is ready or scanning
Blinking – fast The Scanner is initializing or has an error or alert condition. A
message displays on the OCP
Blinking – slow; OCP is blank The Scanner is in low-power mode
Off The Scanner power is off

TG8850-1 – 05OCT20 23
Host Computer

Section 7: Host Computer

Host Computer Software

Network or USB Host Adapters with Smart Touch or Customer Application

Smart Customer
or Operator Interface
Touch Application

WIA TWAIN ISIS Application Program Interface

Operating
System
(DLL) Operating System

DRIVER

HOST NETWORK USB

ADAPTER HOST ADAPTER

Hardware Interface

ETHERNET USB
SCANNER SCANNER
INTERFACE INTERFACE
C101_0030HC

The Host Computer includes:

• Operator Interface
• Application Program Interface

Operator Interface

Software Description
Customer Customers can provide an application interface to control the operation of the SCANNER and
Application image output.
Smart Touch Customers can use the Smart Touch Application to:
Application • Automatically attach scanned documents to an email
• Create “Image only” or searchable PDF files
• Scan documents to PDF, MICROSOFT Word, or image file formats
• Output to a folder or cloud destinations in various formats (e.g., TIFF, JPEG, BMP, PDF, etc)
• Print documents on a local or networked printer
• Send to common destinations such as email, MICROSOFT Office, Adobe Acrobat,
MICROSOFT SharePoint, Nuance PaperPort, Nuance OmniPage, or other third-party
applications

24 05OCT20 – TG8850-1
 Host Computer

Application Program Interface

Driver Description
TWAINDSMa Standard drivers bundled with WINDOWS Software that work with the customer application or
TWAIN SVT2 (TWAINDSM, TWAIN, and ISIS Drivers only)
ISIS
WIA
a. Alaris recommends using TWAINDSM.

Network Host Adapters with a Customer Web Application

Customer Web
Application Operator Interface

HTTP /
Application Program Interface
HTTPS

HOST
NETWORK Hardware Interface
ADAPTER

ETHERNET
SCANNER
INTERFACE

Web API
A RESTful Web API integrated with network-enabled scanners allows customers to develop custom applications that
can initiate scanning without the need for a scanner driver.

TG8850-1 – 05OCT20 25
 Logs

Section 8: Logs
The SCANNER records information in the logs listed below. The CONTROLLER BOARD stores the logs.

Log Contents
Operator Provides a list of messages that the operator can view. The User's Guide contains a table with the
Code Number, Operator Log Message, and Description/Action for the error. The operator can use
this information to resolve issues before calling for service.
Activity Displays the date and time an event occurred in the SCANNER.
Service Provides a list of all errors detected in the SCANNER.
Version Displays the firmware version installed on the CONTROLLER BOARD.
Meter Displays information for all the meters.

• The operator uses the Info tab in the TWAIN Driver to view the Operator Log. The Operator Log is the only log
that the operator can view.
• To view the Activity, Service, Firmware Version, and Trace Logs, service personnel use SVT2 with a special
license key. The Info tab of the TWAIN Driver displays a a menu with the list of logs.

Section 9: Publication History

Publication Date Publication No. Changed Pages Notes

05OCT20 TG8850-1 – New

TM/MC/MR: Alaris. Licensed from Eastman Kodak Company: Kodak

Kodak Alaris Inc.
336 Initiative Dr., Rochester, NY 14624

©2020 Kodak Alaris Inc.