Epson GT-10000 Service manual

®

SERVICE MANUAL

SERVICE MANUAL

SERVICE MANUALSERVICE MANUAL

Color Flat Bed Scanner

EPSON GT-10000

SESC99005

Notice:

n

All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means,
electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.

n

The contents of this manual are subject to change without notice.

n

All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON
would greatly appreciate being informed of them.

n

The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences
thereof.

EPSON is a registered trademark of SEIKO EPSON CORPORATION.

General Notice: Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their

respective owners. EPSON disclaims any and all rights in those marks.

Copyright © 1999 SEIKO EPSON CORPORATION. Printed in Japan.

PRECAUTIONS

Precautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment.

DANGER

WARNING

The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.

Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in
performing procedures preceded by DANGER Headings.

Signals a precaution which, if ignored, could result in damage to equipment.

DANGER

1. ALWAYS DISCONNECT THE PRODUCT FROM THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE
OR REPAIR PROCEDURES.

2. NOWORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR
ALL ELECTRONICS TECHNICIANS IN THEIR LINE OF WORK.

3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL
INSTRUCTED TO DO SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON
POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

WARNING

1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN.

2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING
PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT
TO THE POWER SOURCE.

3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR
REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS.

4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-
STATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS.

5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY THE MANUFACTURE; INTRODUCTION OF
SECOND-SOURCE ICs OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON
WARRANTY.

PREFACE

This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of GT-10000. The
instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on
the preceding page. The chapters are organized as follows:

CHAPTER 1. PRODUCT OUTLINE

Provides a general overview and specifications of the product.

CHAPTER 2. OPERATING PRINCIPLES

Describes the theory of electrical and mechanical operations of the product.

CHAPTER 3. TROUBLESHOOTING

Provides the step-by-step procedures for troubleshooting.

CHAPTER 4. DISASSEMBLY & ASSEMBLY

Describes the step-by-step procedures for disassembling and assembling the
product.

CHAPTER 5. ADJUSTMENTS

Provides Epson-approved methods for adjustment.

CHAPTER 6. MAINTENANCE

Provides preventive maintenance procedures and the lists of Epson-approved
lubricants and adhesives required for servicing the product.

CHAPTER 7. APPENDIX

Provides the following additional information for reference:

• Connector Pin Assignment

• Circuit Board Component Layout

• Circuit Board Diagram

• Exploded Diagrams & ASP List

Revision Status

Revision Issued Date Description

A June 14, 1999 First Release

EPSON GT-10000 Revision A

Table of Contents

CHAPTER 1 PRODUCT OUTLINE

Overview ........................................................................................................ 9

Specifications .............................................................................................. 10

Basics ..................................................................................................... 10

Image Handling Specifications .......... ..................................................... 10

Electrical Specifications .................................................... ...................... 11

Safety, EMC, EPA .................................................................................. 11

Resistance to Electric Noi se ................................................................... 11

Environmental Specifications ................................................................. 11

Reliability ................................................................................................ 11

Operating Conditions .............................................................................. 11

Original Document Condition ................................................................. 12

Physical Dimensions and Weight ........................................................... 12

Interface Specifications ............................................................................... 13

SCSI Interface ........................................................................................ 13

Basic Specifications ........................................................................... 13

Functions ............................................................................................ 13

SCSI Electrical Specifications ............................................................ 13

Connectors ... ...................................................................................... 13

Terminator .......................................................................................... 13

SCSI ID Setting .................................................................................. 13

Commands ......................................................................................... 14

Status ................................................................................................. 15

Display Messages .............................................................................. 15

Connector pin arrangement .................... ............................................ 16

IEEE 1394 Serial Bus Interface *Option* ............................................... 16

Control Code ............................................................................................... 17

Operation Specifications .............................................................................. 18

Buttons and Sw itches .............. ............................................................... 18

LED Specifications ................................................................................. 19

Switch Setting ......................................................................................... 19

Error Indication ....................................................................................... 20

Available Scan Area ............................................................................... 20

Transportation Screw ............................................................................. 21

CHAPTER 2 OPERATING PRINCIPLES

General Descript i on .... . .. .. .. . .. .. . .. .. .. . .. .. .. . .. .. .. . .. .. . .. .. .. . .. .. .. . .. .. .. . .. .. . .. .. .. . .. .. .. . .. 23

Mechanical Operation of the Scan ner ..... .. .. . .. .. . .. .. .. . .. .. .. . .. .. .. . .. .. . .. .. .. . .. .. .. . .. 24

Electrical Circuit Operations ........................................................................ 25

Control Circuit Operation ........................................................................ 25

Power Supply Circuit Operation ............................................................. 26

CHAPTER 3 TROUBLESHOOTING

Overview ..................................................................................................... 29

Errors and Causes of Errors .................................................................. 29

Troubleshooting ..................................................................................... 30

Test Points ......................................................................................... 30

Troubleshooting Other Errors ............................................................. 30

Troubleshooti ng Circui t B oard E rrors .......... . .. .... . .. .. .. ... .. .. . .. ... .. .. .. ... .. .. . .. 35

Power S upply B oard (B054 PS H B oard) ..... .. .. . .. .... . .. .. .. ... .. . .. .... . .. .. .. ... 35

Control Circuit Board (B093M AIN Board) ........................................... 35

CHAPTER 4 DISASSEMBLY & ASSEMBLY

Overview ..................................................................................................... 37

Tools ....... .. . .. .. . .. .. .. . .. .. .. . .. .. . .. .. .. . .. .. .. . .. .. .. . .. .. ....... . .. .. .. . .. .. .. . .. .. . .. .. .. . .. .. .. ... 37

Screws ................................................................................................... 38

Disa ss embly P rocedures . .. . .. .. . .. .. .. ....... . .. .. .. . .. .. . .. .. .. . .. .. .. . .. .. .. . .. .. ....... . .. .. .. . .. 40

Document Cover Unit Removal .............................................................. 41

Electrical Circuit Removal ...................................................................... 41

Main Boards Removal ........................................................................ 42

Scanner Body Disassembly ................................................................... 44

Upper Housing Removal .................................................................... 44

Scanner Mechanism Removal ........................................................... 45

Scanner Mechanism Disassembly ......................................................... 46

Panel Board Assembly Removal ........................................................ 46

Sub Board Assembly Removal ........................................................... 47

HP Sensor (CR) Remov al .................................................................. 48

CR Motor Assembly Removal ............................................................ 48

6

EPSON GT-10000 Revision A

Glass Frame Assembly Removal ....................................................... 49

Lamp Assembly and Inverter Board Assembly Removal ................... 52

Option Frame Assembly Removal ...................................................... 54

CHAPTER 5 ADJUSTMENTS

Updating Firmware .............. ........................................................................ 56

Preparations Before Updating ................................................................ 56

Updating Firmware ................................... .............................................. 57

Light Correction ........................................................................................... 61

Necessary Tools ..................................................................................... 61

Light Correction Procedure .................................................................... 61

CHAPTER 6 MAINTENANCE

CHAPTER 7 APPENDIX

Connector Pin Assignment .......................................................................... 67

Connector Pin Assignment ..................................................................... 67

Connector Summary .......................................................... .................... 67

Main Board Circuit Signals ................................................................. 68

Circuit Board Component Layout ...... .......................................................... 72

Circuit Diagram ............................................................................................ 74

Exploded Diagrams & ASP List ................................................................... 76

Exploded Diagrams ................................................................................ 76

ASP List .................................................................................................. 79

7

PRODUCT OUTLINE

CHAPTER

1

EPSON GT-10000 Revision A

1.1 Overview

The EPSON GT-10000 is an business/office A3 size flat-bed type color image
scanner for use wi th Microsoft® Windows®. The main features of the scanner
are:

o

High resolution
Optical resolution is 600 dpi
12 bit in, 8 bit out

o

Wide readable area
Scans up to A3 size originals

o

High-speed scanni ng
A3 portrai t with full color = 4mS/line

o

Option
Auto Document Feeder (same as GT-12000)

o

Network-use software
EPSON TWAIN Pro Network
EPSON Scan Se rver

o

Scan-Navigation button support
The scan button is functional when using the EPSON TWAIN Pro Network

o

Fast SCSI support
Up to 10MB/S in synchronous data transfer mode

o

International Energy Star compliant

o

High-speed seria l interface (planned option for Windows 2000)
IEEE1394 s erial interface standard

o

Quick operation
Xenon-Gas Cold Cathode Fluorescent Lamp does not require warm-up
period (same as GT-12000).

PRODUCT OUTLINE Overview 9

EPSON GT-10000 Revision A

1.2 Specifications

1.2.1 Basics

Type: Wide area, flat-bed color image scanner

Scanning Method: Sub-Scanning mirror movement system

Photoelectric Device: Color CCD Line senso r

Light Source: Xe-Gas Cold Cathode Fluorescent Lamp

Noise level: 50dB or less during operation

Document size: Up to A3

Max. Effective Pixels: 7020 x 10200 (600dpi)

Max. Scan Area: 297 x 432mm (11.7 x 17.0 inches)

Scanning Resolution: 600 (Main) by 1200 (Sub) dpi

Output Resolution: 50 to 4800dpi (1dp i increments)

Zoom: 50~200% (1% i ncrements)

Option: ADF (same unit as GT-12000)

Interfaces: SCSI (50 pi n connector)

IEEE1394 s erial interface (option for Windows 2000)

1.2.2 Image Handling Specifications

GAMMA CORRECTION

Five standard levels, plus one user definable

CRT A & B
Printer A, B, & C

COLOR CORRECTION

Four st andard levels, plus one user definable

Dot Matrix Printer
Thermal Printer
Ink Jet Printer
Color Monitor (CRT)

Scanning Speed: See the table below.

BRIGHTNESS CONTROL

Seven levels

Table 1-1. Scanning Speed

Setting Time required

Monochrome x2 Approx. 1.4mS/line

256 Grayscale Approx. 4.0mS/line

Full color Approx. 4.0mS/line

Note: Figures taken at 600dpi

Command Codes: ESC/I Command (B7 level)

FS Command

IMAGE PROCESSING

Two output methods: Bi-level = Fixed thres hold

TET (Text Enhancement Technology)

Half-toning: Error diffusion A, B, &C

Ditheri ng A, B, C, & D
User-defined dithering A & B

Focusing: AAS (Auto-Area Segmentation)

PRODUCT OUTLINE Specifications 10

EPSON GT-10000 Revision A

1.2.3 Electrical Specifications

Power supply voltage: Universal pow er

Rated v oltage = AC100 - 120 V (AC ± 10%)
Rated v oltage = AC220 - 240 V (AC ± 10%)

Rated frequency range: 50~ 60 Hz (49.5 - 60.5 Hz)

Power consumpti on: Approximately 50W (wit hout opti o n)

Approximately 55W (wit h option)

Ω

Insulati on resistance: 10M

Dielectric strength: AC1.2kV rms / minute (between AC line and chassis)

or more (DC 500V between AC line and

chassis)

1.2.4 Safety, EMC, EPA

Safety : UL1950 (UL)

CSA C22.2 NO.950 (CSA)

EN60950 (VDE)

IEC950 (ROSTES T, PSB)

EN61000-3-3

EN 50082-1

IEC 801-2

IEC 801-3

IEC 801-4

EPA: Energy Star Program

1.2.5 Resistance to Electric Noise

Static Electricity: Panel = 10kV

Metallic parts = 7kV (150pF/150

Ω)

1.2.6 Environmental Specifications

Temperature: Operating = 5 to 35°C

When not in use =- -25 to 60°C

Humidity: Operating = 10 to 80% (no condensation)

Storage = 10 to 85% (no condensati on)

EMC: FCC Part15 Subpart B C lass B

1.2.7 Reliability

CSA C108.8 Class B

AS/NZS3548 Class B

CISPR Pub22 Class B

CNS13438 Class B

CE Marking:

Low Voltage Directive 73/23/EEC EN60950

EMC Directive 89/336/EEC EN55022 Class B

EN61000-3-2

PRODUCT OUTLINE Specifications 11

Main unit: MCBF: carriage = 100,000 cycles

Hinge = 25,000 turns

1.2.8 Operating Conditions

Dust: Ordinary office or home conditions.

(Should be kept away from extreme dust.)

Illumination: Operation under di rect sunlight or near strong light

source should be avoided.

EPSON GT-10000 Revision A

1.2.9 Original Document Condition

Reflective type: Smooth surface such as a printing and photograph.

1.2.10 Phy s ica l Dimens ion s and Weig h t

Dimensions : 656 (W) x 458 (D) x 176 mm (H)

(See Fig ure 1 -1.)

Weight: Approximately 21 Kg

m
m

8
5
4

Scan but ton

656mm

m
m

6
7
1

m
m

5
4
1

Figure 1-1. External Dimensions of the GT-10000

PRODUCT OUTLINE Specifications 12

EPSON GT-10000 Revision A

1.3 Interface Specifications

This s canner is equipped with two standard SCSI interfaces.

1.3.1 SCSI Interface

1.3.1.1 Basic Specifications

The SCSI interface specifications are described below, any items not included
in the following pages are in conformance with ANSI X3T9.2/375R revision 10L
(SCSI-2).

1.3.1.2 Functions

The following functions are included in ANSI X3T9.2/375R revision 10L
(SCSI-2).

Table 1-2. Functions

Phase/Condition Notes

BUS FREE

ARBITRATION

SELECTION/RESELECTION

• In this setup, LUN (logical Unit Number)

COMMAND

DATA IN

DATA OUT

is fixed at 0

• Command link function is not supported

The Level 1 SCAM target function is available. This is included in ANSI
T10/1142D revis ion 15.

1.3.1.3 SCSI Electrical Specifications

This devi ce conforms to regulations of the Single-ended drivers and receivers
included in ANSI X3T9.2/375R revision 10L (SCSI-2).

NOTE:

The length of the interface cable is limited to three meters when
using FAST SCSI. (Synchronous data transfer)

1.3.1.4 Connectors

Two 50-pin high-density connectors

1.3.1.5 Terminator

Internal terminator, set with the switch on the rear panel

1.3.1.6 SCSI ID Setting

o

ID is s et using the rotary switch on the rear panel, from 0 to 7. Other ID
numbers are reserved.SCSI-ID setting switch

CHECK

PO INT

Be sure to set the scanner to a SCSI ID number that is not
already in use.

Table 1-3. ID Setting

STATUS

MESSAGE IN

MESSAGE OUT

ATTENTION (condition)

RESET (condition)

ID Number Availability Note

0Available

1 Available

2Available

3 Available

Normally assigned to other SCSI
devices such as a hard disk drive

Normally assigned to other SCSI
devices such as a hard disk drive

Scanner default setting

PRODUCT OUTLINE Interface Specifications 13

EPSON GT-10000 Revision A

ID Number Availability Note

4 Available

5 Available

6 Available

7 Available

Blank Not Available

Blank Available

Normally assigned to the SCSI host
adapter.

Not effective / Not used

Used for firmware updates

Table 1-4. Terminator Switch

Setting Note

ON Connects to the terminal resi stor. /Factory default setting
OFF Disconnect s from the terminal resistor.

CHECK

PO INT

Be aware that the terminator switch must be set according
to the sc anner location on the daisy-chain.

1.3.1.7 Commands

This printer uses the following group “0” processor commands.

Table 1-5.

Command Code Description

Test Unit Ready 00h Confirms operation

Request Sense 03h Requires a Sense data

Receive 08h

Send 0Ah

Inquiry 12h

*1: SCSI-2 sense data format available
*2: The inquiry data is shown in the table below.

Table 1-6.

Peripheral Qualifier 000b

When an LUN other than #0 is specified,
this value is set in 011b

Data transmission from Target to
Initiator

Data transmission from Initiator to
Target

Requests information from SCSI

*2

device

*1

Peripheral Device
Type

RMB 00h Non-removable

Devie Type
Modifier

ISO version 00h

ECMA version 00h

ANSI version 02h SCSI-2

AENC 0b

03h

00h

Processor
When an LUN other than #0 is specified,

this value is set in 1fh

Does not support asynchronous event
notification

PRODUCT OUTLINE Interface Specifications 14

EPSON GT-10000 Revision A

TrmIOP 0b

Respo nse Data
Format

Additional length 23h

RelAdr 0b

Wbu s32 0b Does not support 32-bit wide data transfers

Wbus16 0b Does not support 16-bit wide data transfers

Sync 1b Supports synchronous data transfer

Linked 0b

CmdQue 0b

SftRe 0b Har d res et alternative

Vendor ID

Product ID

02h

“EPSON”,

20h, 20h,

20h

“Scanner”,

20h, “******”,

20h

Does not support Terminate I/O Process
messag e

Doe s not support relative addr essing for
this logical unit

Does not support linked commands for this
logical unit

Does not support tagged command
queuing for this logical unit

Note:: ****** = the product name

1.3.1.8 Status

The stat us is determined as follows.

Ta ble 1- 7 . Status Conditions

Status bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0

GOOD R R 0 0 0 0 0 R
CHECK CONDITION R R 00001R
BUSY R R 0 0 1 0 0 R

Note: R = reserved

1.3.1.9 Display Messages

Table 1- 8. Messa ge Summary

Code Message Direction

00h Command complete In -

01h (Extended messages)

02h Save Data Pointer In -

03h Restore Pointer In -

04h Disconnect In -

05h Initiator Detected Error Out Yes

Negate ATN

before last ACK

Product Revision “****” Note:: ****** = the product name

Vendor Specific

00h, 00h,

00h, ffh

06h Abort Out Yes

07h Message Rejection In/Out Yes

08h No Operation Out Yes

09h Message Parity Error Out Yes

0ch Bus Device Reset Out Yes

80h-ffh Identify In/Out No

In = Target to Initiator
Out = Initiator to Target
Yes = Initiator shall negate ATN before last ACK of message
No = Initiator may or may not negate ATN before last ACK of message

PRODUCT OUTLINE Interface Specifications 15

EPSON GT-10000 Revision A

Table 1-9. Extended Message

Code Extended Message Name

01h SYNC HRONOUS DATA TRANSFER REQUEST Ye s

03h WIDE DATA TRANSFER REQUEST Yes

Negate ATN

before last ACK

1.3.1.10 Connector pin arrangement

25

50

Figure 1-2.

Table 1-10. SCSI Connector Functions

Signal In/Out Pin Number Description

GND

NC 13
DB0 I/O 26 Data Bus 0
DB1 I/O 27 Data Bus 1
DB2 I/O 28 Data Bus 2
DB3 I/O 29 Data Bus 3
DB4 I/O 30 Data Bus 4
DB5 I/O 31 Data Bus 5
DB6 I/O 32 Data Bus 6
DB7 I/O 33 Data Bus 7
DBP I/O 34 Data Bus Parity

TERMPWR 38 Terminator Power

ATN I 41 Attention
BSY I/O 43 Busy
ACK I 4 Acknowledge
RST I 45 Reset

1~12, 14~25, 35~37, 39, 40,

42

1

26

Table 1-10.

Signal In/Out Pin Number Description

MSG O 46 Message

SEL I/O 47 Select

C/D O 48 Command / Data

REQ O 49 Request

I/O O 50 Input / Output

(continued)

SCSI Connector Functions

1.3.2 IEEE 1394 Serial Bus Interface *Optio n*

For detai ls see t he sep arate IEE E 1394 S eri al Bus Inte rface serv ice manual.

PRODUCT OUTLINE Interface Specifications 16

EPSON GT-10000 Revision A

1.4 Control Code

The command level for this scanner is ESC/I-B8. The commands supported
are shown in t he table below.

Table 1-11. Control Code Summary

Category Command Code

Iden tity Request ESC I

Status Request ESC F

Exten d ed Status Request ESC f

Param et er Request ESC S

Initiate Scan ESC G

Execute Command

Request Push Button Status ESC !

Request Extended ID FS I

Request Scanner Status FS F

Request Scan Parameters FS S

Initiate New Scan FS G

Set Data Format ESC D i

Set Resolution ESC R n1 n2

Set Zoom ESC H i1 i2

Table 1-11. Control Code Summary (continued)

Category Command Code

Set Digi t al Half toni ng ESC B i

Set Auto Area Se gment at i on ESC s i

Download Dit her Pat te rn ESC b i j d (j^2)

Image Processing

Set Color Corre ction ESC M i

Download Color Corre cti on ESC m d1 d2~d9

Set Threshol d ESC t i

Set Scanning Mode ESC g i

Ini ti a liz e ESC @

Set Line Counter ESC d i

Miscellaneous

Control Opti on ESC e i

Eject Paper FF

Feed Paper PF

Normal Res ponse ACK

Abnormal Response NACK

Control

Stop Scanning CAN

Header STX

Set Data Format

Set Image Correct ion

Set Scan Area ESC A n1 n2 n3 n4

Set Color ESC C i

Set Mirroring ESC K I

Set Scan Parameter FS W

Set Brightness ESC L i

Set Gamma Correction ESC Z i

Download Gamma Tabl e ESC z i d0 d1~d255

Set Sharpness ESC Q i

PRODUCT OUTLINE Control Code 17

EPSON GT-10000 Revision A

1.5 Operation Specifications

1.5.1 Buttons and Switches

This s canner is equipped with 4 buttons/switches. Their functions are
described below:

Figure 1-3. Control Panel Indicators and Buttons

o

OPERATE button

Turns on and off the scanner. When turned on, it initializes the scanner.

o

RESET button

NOTE:

The factory default value for this scanner is 2.

Figure 1-4. SCSI ID Switch

o

SCSI terminator

Determines the internal terminator setting between
ON - last SCSI device on the daisy chain and
OFF - not the last SCSI device on the daisy chain.

NOTE:

The factory default setting f o r this switch is ON (terminated).

Re-initializes the scanner.

o

SCSI ID (rotary) switch

Sets the SCSI device ID for this scanner when the SCSI interface is used
to connect the scanner with the host computer.

Figure 1-5. SCSI Terminator Switch

PRODUCT OUTLINE Operation Specifications 18

EPSON GT-10000 Revision A

1.5.2 LED Specifications

This s canner has the following 3 LED indicators:

o

OPERATE indicator (Green)

Indicates w hether the scanner is on or off.

o

READY indicator (Green)

On when the scanne r is ready to receive commands. Flashes when data is
sent to/from the host computer.

When an error occurs, indicates the error type in combination with the
ERROR LED indi cator.

o

ERROR indicator (Red )

On when an error occurs.

1.5.3 Switch Setting

Among the switche s equipped with this scanner, SCSI switch and the
terminator s witch, which are used for SCSI interface, have the following
settings:

Table 1-12. SCSI ID Setting

ID No. Availability Note

0O

1 O

2O

Normally assigned to other SCSI devices such
as a hard disk drive

Normally assigned to other SCSI devices such
as a hard disk drive

Scanner default setting

ID No. Availability Note

7 O Reserve

Blank X

Blank O Used for firmware updates

CHECK

PO INT

Do not set the ID number that is already assigned to other
SCSI device.

Table 1-13. Terminator Switch

Setting Note

ON Connects to the terminal resistor. / Factory default setting.

OFF Disconnects from the terminal resistor.

CHECK

PO INT

Be aware that the terminator switch m ust be set according
to the scan ner location on the “daisy-chain”.

3 O Reserve

4 O Reserve

5 O Reserve

6 O Reserve

PRODUCT OUTLINE Operation Specifications 19

EPSON GT-10000 Revision A

1.5.4 Error Indication

If an error occurs, determine the error type referring to the status of the READY
and ERROR LED i ndicators.

Table 1-14. Indicator Status and Corresponding Errors

READY ERROR Error Type

On On Command error
Off Flashing Communication error
Flashin g Flashing Fatal error
Off Off Option error

Note: See Chapter 3 Troubleshooting for details on solving the error.

1.5.5 Available Scan Area

The origi n point for this scanner is marked at the rear left corner o f the
document table when viewed from the front. See Figure 1-6 for the maximum
scan area.

2 ± 1.5mm

297mm

Origin

Front

2 ± 1.5mm

432mm

Figure 1-6. Maximum Scan Area

PRODUCT OUTLINE Operation Specifications 20

EPSON GT-10000 Revision A

1.5.6 Transpo rtat io n Screw

A transporta ti on screw i s attached to th e left side of the scanner view ed from
the front. Fastening the screw fixes the CR to protect the scanner from the
shock while the scanner is transported or moved. Be sure to turn the screw to
the unlocking position (Described in the figure below.) before turning t he
scanner power on.

LOCK

for transportin g

UNLOCK

select during

normal use

Figure 1-7. Transportation Screw

PRODUCT OUTLINE Operation Specifications 21

OPERATING PRINCIPLES

CHAPTER

2

EPSON GT-10000 Revision A

2.1 General Description

The EPSON GT-10000 i s mainly composed of the following uni ts :

o

Scanner mechanism
(Lamp and mirror mechanism and drive unit, lens-CCD sensor unit drive
mechanism)

o

Control Circuit

o

Power supply circuit

The EPSON flat-bed type scanners usually read images by moving the integral
CR unit which consists of the lamp, mirror, and lens-CCD sensor. This
scanner, however, characteristically has the CCD sensor and the lens in the
whole unit attached onto the mechanism as an independent unit. This scanner
is also equipped with the newly designed focusing function which enables the
scanner to focus by adjusting the distance between the lens and the CCD
sensor. Since the separate units in the mechanism such as the lamp and the
mirrors move at their own speed for reading, the incident distance of the
reflected light from the document to the CCD sensor is kept constant.

B093PNL board

Lens

unit

B0931SN

board

(CCD

CN1

CN3

Lamp/mirror unit

CN2

B093SUB

Mirror

unit

CN4

HP sensor

(mirror)

B093SUB-B

board

Motor

(lamp/

mirror)

Drive

wires

CN5

CN6

The control circuit board and the power supply circuit board are stored in the
separate shi eld compartment. Since the only connections from the boards lead
to the connector board in the scanner mechanism, the shield compartment is
easy to remove and the scanner is easy to maintain.

SCSI

interface

B093MAIN

board (control

circuit)

interface

Terminator

ADF

SCSI ID switch

switch

AC in

B054PSH

board (power

supply)

Figure 2-1. Main Mechanism Structure of GT-10000

OPERATI N G PRINC IPLE S Gene ral Des c ript ion 23

EPSON GT-10000 Revision A

2.2 Mechanical Operation of the Scanner

Compared with other E PSON scanners, the main feature of this scanner lies in
its new optical mechanism used for reading images. Instead of the united lamp
& CCD movement system used for other scanners, this scanner scans with the
fix ed CCD sensor and separate lamp and the mirror units.

Since the color CCD line sensor is used for the reading device, only one light
source is equi pped and light is separated through the RGB color filter.

As shown in Figure 2-2, the light source (high luminance cold cat hode xenon
lamp), the first reflection mirror unit, and the second reflection mirror unit move
independently at their own speed. Therefore the length of the i ncident light
reflected from the document to the CCD sensor is kept constant.

Paper

Fixed

x 2

The ve rtical distance between the lamp plus the mirror in the Lamp/mirror unit
and the document surface remain constant. The vertical distance between the
mirrors i n the Mirror unit also remains constant . However, the horizontal
distances between the Lamp/mirror unit (rate = x2) and the Mirror unit (rate =
x1) as w ell as between the Mirror unit and Lens unit are constantly changing.

The stepp ing motor drives both movable units via wires.

The CCD sensor and the lens are united into one unit, which is semi-fixed on
the base frame. The only difference from GT-12000 is that the CCD lense
focus is fixed.

Variable

Glass

x 1

CCD sensor

Lens unit

Lamp/mirror unit

Fixed

Mirror unit

Variable

Figure 2-2. Optical Unit Structure

OPERATING PRINCIPLES Mechanical Ope ration of the Scanner 24

EPSON GT-10000 Revision A

2.3 Electrical Circuit Operations

This section describes the electrical circuitry of the GT-12000.

2.3.1 Control Circuit Operation

The control circuits of this scanner are:

o

B093MAIN board (Main control circuit board)

o

B093ISN board (CCD sensor board located on the CR)

o

B054PSH board

o

B093SUB board (Relay board)

o

B093SUB-B board (Copy button control)

o

B054PNL board (control panel)

Among the various functions controlled by the B093MAIN board as well as the
B093ISN, thes e boards control the scanning process from the CCD sensors to
the image signal processing as described below.

o

B093ISN Board (CCD image sensor)

n

Photoelectric conversion:
Converts light reflected from the document (light energy) into electrical
energy (electrical charge).

n

Amplification

n

A/D conversi on:
Converts the image data produced in the form of analog electrical
signals into 12-bit digital data.

H.P.

+5V,+15V

,+24V

(

HD6412350F20

(128K * 16bit)

PW/RS

SW

LED

x3

IC12
CPU

Flash ROM

IC7

Lamp

Unit

B
o
a

r

d

)

B

CR

0
9

Motor

3
P

N
L

Motor drive
(A3957 SL B )

IC 4/5

B093ISN Board

CCD (ILS123K)

IC7

AFE(VSP3000)

IC10 T-Rex

(E02A31EA)

Image

processing

-Shedding

-Gamma crrctn

-Line crrctn

-Main/sub ave.

-Color matching

-2/4 sizing

-TET

-AAS

B093SUB

Board

B093MAIN

Board

SDRAM

(16M * 8bit)

IC13

SRAM

(256K * 8bit)

IC14

o

B093 MAIN Board (processes image data)
ASIC (IC10) on this board manages most of the following functions:

n

Shading correction:
Performs image data correction on a black and white basis.

n

Processes the image data according to various setting information
provided by the host, such as gamma correction, color correction, and
halftoning correction.

After completing these processes, image data is output to the host.

SRAM

(32K * 8bit)

IC8/9

ID switch

CN3

Figure 2-3. Control Circuit Composition

(SPC7211)
I/F control

CN2

IC16

IC 17

(BH9596)

Trmntr ctrl

Switch

CN1

OPERATING PRINCIPLES Electrical Circuit Operations 25

EPSON GT-10000 Revision A

B093MAIN BOARD

Name Location Description

CPU
HD6412350F20

T-REX
E02A31EA

SPC7211 IC16

A3957SLB IC4/5 Motor drive control

BH9596 IC17 Terminator control

IC12

IC10

The CPU that controls this entire operation
of this board and operates at 20 MHz.
Voltage = 5.0V

The image processor that controls the
functions described below, operates at
48Mhz. Voltage = 3.3V

• CCD control

• Line correction processing

• Buffer memory

• Image processing

The SCSI interface processor operates at
40Mhz. Voltage = 5.0V

B093ISN BOARD

Name Location Description

Color CCD line sensor outline:

• Effective pixel = 7250 pixels x 3 colors

CCD sensor
ILX123K

IC9

• Light shield = 16 pixels x 3 colors

• Bi-D scanning rate = Max. 6 million
pixels/second

• Shutter function

±

10%

± 0.3V

± 10%.

B054PNL BOARD

This board has a power switch (push-lock), RESET switch and LED indicators
(OPERATE, READY, ERROR). (Same board used in GT-12000; compatible.)

2.3.2 Power Supply Circuit Operation

Since the power supply circuit board B054PSH for this scanner meets the
universal specification requirements, it can be used with rated voltage from
100V to 240V AC.

The electrical circuit for the AC input part is designed on the basis of
200V li ne. In case the input voltage is 200V line level, the ordinary full wave
rectifying system is used. With this system, the voltage is rectified by the diode
bridge DB1 and then smoothed by th e seri a l smoothing capacit ors C11 and
C32 to produce approximately 250 VDC.

On the other hand, if the input voltage is 100V line level, the double-voltage
rectifying system is used instead. With this system, the input AC current is
separated into the following 2 flows; the positive half cycles of the current flow
through the control IC (IC2) (from Pin 2 to Pin 3) via the diode bridge (DB1) and
the smoothing capacitor C11, and the negative half cycles of the current flow
through the smoothing capacitor (C32) and DB1 via IC2 (from Pin 3 to Pin 2).
Through these flows, the positive and negati ve AC current are separat ely
charged in the s moothing capacitors C11 and C32, respectively. The final
VDC (approximately 250 VDC) is equivalent to the output voltage produced by
the 200V line. At power-on, the control circuit (IC2) is activated by the full wave
rectifying system. Then, if the input voltage is the 100 VDC line level, the
system automatically switches to the double-voltage rectifying system after a
certain period set by the circuit.

ADC
VSP3000

IC2

A/D converter processing IC
Resolution = 12 bit

B093SUB BOARD

This relay board connects the B093MAIN board (which is located on a metal,
shielded tray) w ith the B093ISN and B054PNL boards.

OPERATING PRINCIPLES Electrical Circuit Operations 26

EPSON GT-10000 Revision A

Except for the full wave rectifier circuit/voltage doubler rectifier circuit at the AC
input part , the normal RCC (Ringing Choke Converter) regulator circuit is used
for the rest part of the power supply circuit, and the different levels of VDC are
distributed to corresponding mechanisms, as shown in Table 2-1:

Table 2-1. DC Output Power

Output VDC Application

+5 V Logic power lines

+24 V

+15 V

• Motor drive power source

• Power source for the lamp (inverter)
+12 V production

(Drives the cooling fan for the metal, shielded tray that contains
the B093MAIN and B054PSH boards.)

Positive

Voltage
input

DB1

C11

Voltage

Negative

output

C32

IC2

AC input
100V = on
200V = off

Figure 2-4. Double-voltage Rectifier Circuit Operation

OPERATING PRINCIPLES Electrical Circuit Operations 27

TROUBLESHOOTING

CHAPTER

3

EPSON GT-10000 Revision A

3.1 Overview

This chapter describes troubleshooting techniques to help you solve any
scanner problems you may encounter. First see the next section to determine
what kind or error ha s occurred, and then see the appropriate explanation in
the following pages to determine the correct solution.

3.1.1 Errors and Causes of Errors

The self-diagnostic function equipped with this scanner automatically detects
the operating st atus of all major parts. The scanner communicates any
detected error and the cause of the error using a combination of the indicator
lights as described below.

COMMAND ERROR

Table 3-1.

LED Status Cause Operation/Condition

Ignores the wrong command
/parameter (no change made to
the current settings), and
returns NACK to wait for the
next command/ parameter.

Remedy

READY

ERROR

Received
undefined
command or illegal
parameter.

The error is cleared when a legal command or
parameter is received.

COMMUNICATION ERROR

Table 3-2.

LED Status Cause Operation/Condition

• Wrong communicati on
procedure or opera ti on

READY

ERROR

(flashing)

Remedy

detecte d.

• For SCSI I/F, if the error
occurred in any phase ex ce pt
“bus free ”, communica ti on
and operations stop for over
30 seconds.

• Turn the scanner off and back on or press the RESET button.

• For SCSI, se nd “RESET” signal.

The lamp goes off and the
scanner s tops oper at i ng.

FATAL ERROR

Table 3-3.

LED Status Cause Operation/Condition

• The lamp goes off and the
scanner s tops oper at i ng.

• Sets the sta tus bit to bit
“7”.

Remedy

READY

ERROR

(both

flashing)

Hardware error, such as

• The lam p does not li ght.

• Scanner turned on wit h the
CR unlocked.

• Other defects in the scanner.

• Turn the scanner off a nd back on or press the “ RESET”
switch.

• Send ini ti lia ze command *ESC @”.

• Send SCSI “bus device reset”

• For SCSI, se nd “RESET” signal.

TROUBLESHOOTING Overview 29

EPSON GT-10000 Revision A

OPTION ERROR

Table 3-4.

LED Status Cause Operation/Condition

Option error, such as

REA DY

ERROR

Remedy Solve the error.

CHECK

PO INT

• The scanner cover is open.

• Paper out

• Other similar error

Sets the status bit to bit “7”.

An [Op tio n Error] can be detec ted on ly wh en the
optio n is pro pe rly ins talled .

3.1.2 Troubleshooting

This sect ion provides test points for each major unit and check points for each
abnormal phenomenon.

3.1.2.1 Test Points

Test poi nts for the motors and sensors are shown in the tables below .

MOTORS

Condition: Test the motor without any cables connected.

Table 3-5. Motor Check Points

Motor Test Point Signal Level

SENSORS

Condition: Test the sensors with the power on.

T able 3-6 . Sensor Check Points

Motor Te st Point Signal Level

• High when the mirror unit is
in the home position.

• Low when it is outside of its
home position.

HP sensor (Mirror)

CAUTION

Be careful no t to sho rt-c ircu it the signals while

<B093SUB board>
CN4: Pin 1 (Signal)
Pin 2 (GND)

checking them.

3.1.2.2 Troubleshooting Other Errors

See the table below for miscellaneous errors not covered in the previous
sections.

Table 3-7. In case of abnormal performance

Phenomenon Description Refer to Flowchart

The scanner doesn’t
operate at power on.

“Fatal Error” is indicated
and does not clear after the
scanner is turned off and
back on

“Communication Error” is
indicated

“OPERATE” LED d oes
not light.

CR does not move. Figure 3-1

Abnormal movement
of CR, such as
crashing into the
frame.

Lamp does not light. Figure 3-4

SCSI not set properly
or defective

Figure 3-1

Figure 3-3

Figure 3-5

Motor (for driving
the mirror)

<Cable connector>
Between Pins 1 and 3
Between Pins 2 and 4

15.0

Ω

The scanner does not scan
images properly.

Black lines, White
banding, and so on

Figure 3-6

TROUBLESHOOTING Overview 30

EPSON GT-10000 Revision A

Flowchar t 3- 1. COperate light does not light up

Start

CN1 on B093SUB

not grounded

properly?

No

Has the fuse F1/F2
(B054SUB) blown?

No

Disconnect cables from
CN2/4/5/6 on B093SUB, and
then with power on test CN5
for the following voltages.

Bet ween Pin s:
1 and 4: +24V DC
7 and 4: +5V DC
9 and 10: +15V DC

Yes

Connect properly

Yes

Disconnect cables

from CN2/4/5/6 on
B093SUB, and replace
the fuse. Then turn on.

Did the fuse burn

out again?

Replace B054PSH

Yes

No

A

Check the resistance of
the mirror drive motor
coil: 15.0

A

Ω

Is it correct?

Yes

Replace

B093MAIN

No

Check the motor driver

IC on B093MAIN.

For Mirror motor
resistance between Pin
15/22 of IC4/5 and GND =
infinite

Yes

Is it correct?

No

Replace

B093MAIN

Are they correct?

No

Replace B054PSH

Replace the

motor

Yes

A

TROUBLESHOOTING Overview 31

EPSON GT-10000 Revision A

Flowchar t 3- 2. CR (Mirror/ l amp) does not move

Star t

Transportation

screw set to locked

position?

No

Turn off the scanner and

manually move the carriage.

Does it move smoothly?

Yes

With power on, test CN5 on
B093MAIN.

Between Pin 1 and 4: +24V DC

Yes

No

Unlock the screw

Th e mech anism

is defective.

Replace it

A

Check the resistance
of the mirror motor
coil: 15.0

Ω

Is it correct?

Yes

Replace

B093MAIN

Replace the

motor

No

Check the motor driver

IC on B093MAIN.

For the mirror motor,
resistance between Pin
15/22 of IC4/5 and GND
= infinite

Yes

Is it correct?

No

Is it correct?

No

Replace

B054PSH

Yes

A

Replace

B093MAIN

TROUBLESHOOTING Overview 32

EPSON GT-10000 Revision A

Flowchar t 3- 3 . CR moves abnormally (crashes into frame) Flowchart 3-4.

Start

Transportation

screw set to locked

position?

No

Test CN4 on B093MAIN for the HP

signal level.

Is the signal “High” when

CR is in home position?

Yes

Yes

Replace the lamp on the

Unlock the

screw

Does the lamp operate

Replace the inverter board on the

Replace

B093MAIN

Start

carriage.

normally?

No

carriage.

Lamp does not light

Yes

Old lamp was

defective.

No

Replace the HP

sensor (for mirror)

Does the lamp operate

normally?

No

Replace

B093MAI N

Yes

Old inver ter

was defective.

TROUBLESHOOTING Overview 33

EPSON GT-10000 Revision A

Flowchart 3-5. SCSI I/F communication error occurs Flowchart 3-6. Scanned image is abnormal

Start

Make sure only the last SCSI
device in Daisy Chain is terminated

Make sure there are no SCSI ID
conflicts.

Are the settings correct?

Yes

Try another SCSI cable.

Does the scanner

operate properly?

No

Yes

Set them

correctly.

Old cable was

defective.

Replace.

Start

Stains or foreign

material on glass?

No

Stains or forei gn

material on mi rror ?

No

Replace B093M AI N an d perfo rm a

test scan.

Does the scanner

operate normally?

No

Yes

Yes

Yes

Clean the

glass

Clean the

mirro r

Old B093MAIN

was defective

No

Replace

B093MAIN

Replace the
mechans im

TROUBLESHOOTING Overview 34

EPSON GT-10000 Revision A

3.1.3 Troubleshooting Circuit Board Errors

This s ection describes the check points for the electrical circuit boards.

3.1.3.1 Power Supply Board (B054PSH Board)

Tabl e 3- 8. B054PSH Board T r ouble sh ooti ng

Phenomenon Check Points

<Abnormal voltage>
+5VDC is not output.

<Abnormal voltage>
+24 VDC is not output.

<Abnormal voltage>
+15 VDC in not output.

3.1.3.2 Control Circuit Board (B093MAIN Board)

Table 3-9. B093MAIN Board Troubleshooting

Phenomenon Check Points

<No operation at all>
Reset IC is defective.

Test the signal waveform output between Pins 8
and 11 (chopping waveform) for IC51 (TL494)

Test the drain waveform at the Switching FET/Q1

Test the signal waveform output from Pin 1 for
IC52 (78M15)

Check the reset IC (IC11) for the signal
waveforms output from the following
pins:

Pin 7 (for +5V input)
Pin 5 (for PWRS output)

Table 3-9. B093MAIN Board Troubleshooting (continued)

Phenomenon Check Points

<”Fatal Error”>
Carriage does not stop at the home

position.

<”Fatal Error”>
Lamp does not light.

<”Fatal Error”>
White standard level is not read

properly.

<”Communication Error”>
Bi-directional I/F and SCSI I/F

<Image is read abnormally>

Check if the signal waveform input to Pin
110 of the CPU (IC12) changes in
accordance with the CR position.

Check the output from Pin 95 of ASIC
(IC12)

Check the signal output waveform for
ASIC (IC12) Pin 202:

Main cause: ASIC (IC16) is defective.
(Replace IC16 or B093MAIN board.)

Main cause: ASIC (IC10) is defective.
(Replace IC10 or B093MAIN board.)

Check the CPU (IC12) for the ROM

<No operation at all>
EPROM access error

<No operation at all>
CPU is defective.

<”Fatal Error”>
Motor (for mirror) drive circuit is

defective.

access signal waveforms output from the
following pins:

Pin 2 (for CS0 signal)
Pin 91 (for RD signal)

Check the clock signal waveform input to
the following pin:

Pin 85 (for XTAL input)

Check the Driver IC (IC 4/5) Phase drive
signal waveform output from Pin 15/22

TROUBLESHOOTING Overview 35

DISASSEMBLY & ASSEMBLY

CHAPTER

4

GT-10000 Revision A

4.1 Overview

This chapter describes how to disassemble this scanner. Unless ot herwise
specifi ed, assembly can be accomplished by following disassembly procedures
in reverse order.

n

W ARNING

CAUTION

Be sure to disconnect the power cable from the AC power
socket prior to servicing.

n

Since this scanner weighs h eavy (approximately 20 kg), it
must be carried b y two people.

n

Never disassemble any scanner parts unless specified to
do so, because th is scanner mechanism needs precise
assembly and adj ustment to maintain accurate control
system at its satisfactory level.

n

Secure yourself enough roo m for servicing, considering
the size o f the scanner.

n

Since this scanner weighs as heavy as approximately 20
kg, be sure to perform servicing on a heavy-duty, level
table.

n

Make sure that the “CR fixing knob” is set to the locking
position to fix the CR by the rear before packing the
scanner for transportati on.

4.1.1 Tools

Tools used for servicing are as listed in the table below:

Table 4-1. Tool List

Description Availability SE Parts Code Reference

(+) Screw Driver (No. 2)

(+) Screw Driver (No. 1)

Box Driver (Diagonal: 6mm)

Box Driver (Diagonal: 5mm)

Tweezers

Leveling Tools (3 stages and 1
adjuster as 1 set)

Mechanism Lift Handle

Light Correcting Panel

White Standa rd Char t

¤
¤
¤
¤
¤

¢

¢

¢

¢

- Versatile

- ditto

- ditto

- ditto

- ditto

1039140

1040176 ditto

1050003

1050004

Same as

GT-12000

Exclusively

desi gned for GT-

10000.

Exclusively
designed for GT-

10000.
(Must be attached

to the Light
Correcting Panel
before use.)

¤

Commercially available.

¢

Not commercially available.

DISASSEMBLY & ASSEMBLY Overview 37

GT-10000 Revision A

4.1.2 Screws

Screws used in this scanner are listed in the table below. However, the list
does not include the screws which are used for servicing not specified in this
manual. Be sure to use the correct types and numbers of screws for each part
when assembling the scanner.

Table 4-2. Screw List

No.

1 CPFS M3x8 Black

2 CB M3x6 Gold

3 CP M2.5x8 Silver

Screw Type /
Specification

Appearance Color

Table 4-2. Screw List (continued)

No.

6 CPS M4x12 Silver

7 CB M4x10 Gold

8 CPS M4x18 Gold

Screw Type /

Specification

Appearance Color

9 CR; B Damper Shaft Gold

4

5

Screw Lock Screw
(Diagonal: 5 mm)

Brass Spacer (Hexagon)
(Diagonal: 6mm)

Silver

10 CB M3x3 Gold

Silver

DISASSEMBLY & ASSEMBLY Overview 38

GT-10000 Revision A

Table 4-2. Screw List (continued)

No.

11 CB M3x12 Black

12 CB M4x6 Gold

13 CPFS M3x8 Gold

Screw Type /
Specification

Appearance Color

DISASSEMBLY & ASSEMBLY Overview 39

GT-10000 Revision A

4.2 Disassembly Procedu res

Document Cover

This section describes disas se mbling and removing procedures for each major
unit of the scanner.

Removal

(Section 4.2.1)

See the flowchart in F i gure 4-1. The jobs in the yellow box i nvolve use of the
adjusting tools exclusi vely designed for this scanner. Therefore, make sure that
you read the i ns tructions in each secti o n carefully t o figure out the procedures
before servi ci ng.

Electrical Circuit

Removal

(Section 4.2.2)

Scanner Body

Disassembly

(Section 4.2.3)

Scanner Mechanism

Disassembly

(Section 4.2.4)

Main Boards Removal

(Section 4.2.2.1)

Upper Housing Removal

(Section 4.2.3.1)

Mechanism Removal

(Section 4.2.3.2)

Panel Board Assembly Removal

(Section 4.2.4.1)

Sub Board Assembly Removal

(Section 4.2.4.2)

HP Sensor (CR) Removal

(Section 4.2.4.3)

Motor (CR) Assembly Removal

(Section 4.2.4.4)

Glass Frame Assembly Removal

(Section 4.2.4.5)

Lamp/Inverter Board Assembly

Removal (Section 4.2.4.6)

Option Frame Assembly Removal

(Section 4.2.4.7)

Figure 4-1. Disassembly Procedure for GT-10000

DISASSEMBLY & ASSEMBLY Disassembly Procedures 40

GT-10000 Revision A

4.2. 1 Docum ent Cover Unit Removal

4.2.2 Electrical Circuit Removal

The major electrical circuit boards (B093MAIN and B054PSH) of this scanner
are all stored in one independent shield compartment. Therefore, they can be
removed in one unit (board unit) from the scanner with ease.

1. Disconnect the AC power cable from the scanner.

2. Remove 3 screws (No.1) securing the shield compartment which contains
the electrical circuit boards at the back of the scanner. Then take out the
compartment from the scanner.

Figure 4- 3. Shiel d Compar t me nt Remov a l

CHECK

PO INT

For easy removal, pull the translucent card spacers located
at both sides of the shield compartment.

Figure 4-2. Document Cover Unit Removal

DISASSEMBLY & ASSEMBLY Disassembly Procedures 41

GT-10000 Revision A

4.2.2.1 Main Boards Removal

Main boards stored in the shield compartment should be removed in the
following procedure:

1. Remove the shield compartment. (See 4.2.2.)

2. Remove 18 screws (No.2) securing the top shield and the top shield cover,
and remove both units together.

Figure 4- 4. Removal of Top Shiel d and Shield Cove r

3. Main Boar d Assembly Rem o val

Disconnect the connector cables from connectors CN5 and CN7 on the main
board assembly.

4. Remove the following s crews securing the main board assembly, and a
brass spacer securi ng the top shield, and remove the main board:

n

6 screws: No. 2, securing the board along the edges.

n

6 screws: No. 3 = 4 screws securing the SCS II I/F connector; No. 4 = 2
screws securing the ADF OPTION connector.

DISASSEMBLY & ASSEMBLY Disassembly Procedures 42

GT-10000 Revision A

5. Power Supply Board Assembly Removal

Connector CN7

Connector CN5

Fixing Screws (No.2)

Brass Spacer (Hexagon)

n

Remove the connector cables from connector CN1 on the power
supply board ass embly and connector CN5 on the main board
assembly.

6. Remove 6 screws (No.2) securing the power supply board assembly and

remove the power s upply board.

Power Supply Connector CN1

Figure 4-5. Main Board Assembly Removal (a)

Power Sup ply Board Fixing
Screws (No.2)

Main Board

Connector CN5

Figure 4-7. Power Supply Board Assembly Removal

SCSI I/F Fixing Screws

ADF Option I/F

Fixing Screws

Figure 4-6. Main Board Assembly Removal (b)

DISASSEMBLY & ASSEMBLY Disassembly Procedures 43

GT-10000 Revision A

4.2.3 Scanner Body Disassembly

This s ection describes procedures for disassembling the major units of the
scanner.

4.2.3.1 Upper Housing Removal

CAUTIO N

1. Remove the document cover (See Figure 4.2).

2. Usi ng tw e ezers, remove t he CR fixi ng knob at tached to the left si de of the
scanner.

3. Remove 4 screw s (2 for each of No.6 and No.7) securing the upper
housing to the chass i s on the s canner. Note that the 2 front screw s are
covered w i th the screw caps. Pinch them out wit h tw eezers pri or to
removing the screws.

4. Lift up th e upper hous ing to remov e i t.

CHECK

PO INT

When removing the CR fixing knob or screw caps, take
cautions not to damage the upper housing.

When reinstalling the upper housing, make sure that the
optical plate is installed on the specified position.

Screw

6

(No.6)

CR Fixing Knob

Screw

Cap

Screw
(No.7)

Screw Cap

Figure 4-8. Upper Housing Removal

Remove the cap by lifting it up
while pushing it toward the other
side of the cutout.

Cross-section

Screw Cap

Be careful not to damage
the upper housing.

Figure 4-9. Screw Caps Removal

DISASSEMBLY & ASSEMBLY Disassembly Procedures 44

GT-10000 Revision A

Optical Plate

Figure 4-10. Optical Plate Installation

Inner Side of the
Upper Housing

CHECK

PO INT

Note the following when installing the scanner mechanism:

n

Remove key tops for the power switch and reset
switches from the lo wer housing.

n

Install the sca nner mechanism to the lower housing.

n

Reinstall the key tops.

Place the removed mechanism on flat stable surface.

4.2.3.2 Scanner Mechanism Removal

The scanner mechanism can be removed from the lower housing in the
following procedure:

1. Remove the upper housing (See 4.2.3.1).

2. Remove 4 screws (No.8) securing the scanner mechanism to the lower
housing. Then remove the mechanism from the lower housing.

DISASSEMBLY & ASSEMBLY Disassembly Procedures 45

GT-10000 Revision A

4.2.4 Scanner Mechanism Disassembly

The rest of the chapter describes procedures for removing the major parts/
units in the scanner mechanism.

CAUTIO N

Note that producing this scanner requires precise assembly
and adjustment to ensure ac curate control system.
Therefore, n ever disassemble any scanner parts unless
specified to do so.

4.2.4.1 Panel Board Assembly Removal

1. Remove the scanner mechanism (See 4.2.3.2).

2. Turn the mechanism over and place it on a flat surface.

3. Disconnect the white cable from CN1 and the black cable from CN2 of the
panel board as sembly.

4. Remove 2 screws (No.2) securing the panel board assembly, and remove
the assembly.

CHECK

PO INT

Unit arrangement at the bottom of the mechanism is as
shown on the following page.

Figure 4-11. Scanner Mechanism Removal

DISASSEMBLY & ASSEMBLY Disassembly Procedures 46

GT-10000 Revision A

4.2.4.2 Sub Board Assembly Removal

CR Motor Assembly

Figure 4- 12 . Unit Arrangement

CR HP Sensor

Sub Board Assembly

CN1CN2

Panel Board Assembly

1. Remove the scanner mechanism (See 4.2.3.2).

2. Turn the mechanism over and place it on a flat surface.

3. Disconnect all connector cables from the sub board assembly (B093SUB).

4. Remove 4 screws (No.3) securing the board to the bracket, and remove
the board.

CHECK

PO INT

CN6 CN2

When placing the scanner up side down, lay a clean soft
cloth under the scanner to protect the glass surface.

CN5

CN4

CN3

Panel Board Assy

Screws (No.2)

Screws (No.2)

Figure 4- 14 . Sub Board Assembl y Remov al

Figure 4-13. Panel Board Assembly Removal

DISASSEMBLY & ASSEMBLY Disassembly Procedures 47

GT-10000 Revision A

4.2.4.3 HP Sensor (CR) Removal

This section describes procedure for removing the HP sensor which detects
reference position of the carriage mirror assembly.

1. Remove the scanner mechanism (See 4.2.3.2).

2. Unlock the carriage fixing screws, and move the carriage mirror assembly
away from the HP.

3. Turn the mechanism over and place it on a flat surface.

4. Release the hook fixing the HP sensor at the bottom of the mechanism and
remove the HP sensor unit. Then disconnect the connector cable from the
removed HP sensor.

CR Motor Assembly

CR HP Sensor

Panel Board Assembly

4.2.4.4 CR Motor Assembly Removal

This section describes procedure for removing the motor unit which drives the
carriage mechanism (mirror/lamp).

1. Remove the scanner mechanism (See 4.2.3.2).

2. Turn the mechanism over and place it on a flat surface.

3. Unhook the torsion spring from the tension lever assembly, then remove 1
screw (No.13) and the bush to remove the tension lever assembly.

4. Disconnect the cable for the motor from the relay connector and remove 4
CR; B damper shafts (No.9), and then remove the motor.

CHECK

PO INT

When assembling, hook the spring to the tension lever
assembly first, and fasten the screws.

Sub Board Assembly

Figure 4-15. HP Sensor (CR) Removal

DISASSEMBLY & ASSEMBLY Disassembly Procedures 48

GT-10000 Revision A

4.2.4.5 Glass Frame Assembly Removal

CR; B Damper Shafts

Top of the Scanner

Screw (No.13)

Figure 4-16. CR Motor Assembly Remova l

Since the glass frame assembly (document glass) is one of the reinforcing
parts of the mechanism, the whole scanner mechanism may be deformed if it is
removed. Be sure to follow the instruction provided in this section during any
servicin g whic h involves rem oving the gla ss frame assembly.

.

n

CAUTIO N

When removing the document glass, m ake sure to set the
scanner on the ad justing tools exclusively designed for
this scanner.

n

Be sure to fit all the rubber feet of the scanner in the top
indents of the stages and the adjuster (Any of the feed
should not be placed over the top surface of the tools).

n

Set the scanner on a stable and level table.

n

Make sure that the scanner mechanism is installed in the
lower housing when removing the glass frame assembly.

Turning Table
(with 4 divisions)

Base
(with 1 groove)

Stage

(3 pieces)

Adjuster

Figure 4- 17 . Adjusting T ools

DISASSEMBLY & ASSEMBLY Disassembly Procedures 49

GT-10000 Revision A

n

Turn the t able manually [2 quarters], which can be measured by 4
divis ions on the table and the groove on the base, to push the table up
from the posi tion where the table was moved up to by the spin.

n

After adjusting, make sure that each corner of the scanner is securely
in contact with the corresponding tool.

3. Remove 9 screws (No.10) and remove the glass frame assembly. The
screws to be removed and their locations are shown on the following page.

Stage
(Set in the front left,
rear right and rear
left corners.)

Adjuster
(Set in the front
right corner.)

Turn the turning table to
move the table up and
down to adjust height.

Figure 4-18. Tool Position and Adjusting Method

1. Remove the upper housing (See 4.2.3.1).

2. Referring to Figure 4-18, set the scanner on the adjusting tools (leveling
tools) and level the scanner according to the following procedure:

n

Set the scanner on 3 stages, placing each of the specified rubber feet
on the corresponding stage.

n

Set the adjuster under the rubber foot in the front right corner of the
scanner bottom, aligning the center of the adjuster with the foot. Make
sure that you can see the groove on the base of the adjuster when it is
set.

CAUTIO N

When reinstalling the glass frame assembly, refer to
Section 4.2.3.5 .1 to confirm the correct installation position.
Misplacing of the glass frame assembly will cause the CR to
scan the document from a wrong position.

n

Hold the bas e of the adjuster with a hand and spin the table until i t
reaches the bottom of the scanner by its own force.

DISASSEMBLY & ASSEMBLY Disassembly Procedures 50

GT-10000 Revision A

n

Push the whole glass frame assembly from the front against the frange

Screws (No.10)

Screws

(No.10)

Screws
(No.10)

shaft stoppers until the glass edge is in contact with the bus hes.

n

Keeping the glas s frame assembly in contact with the stoppers, move
the assembly toward left and push it against the positioning bump
located on t he top surface of the left side frame.

n

When the glass frame assembly is in the correct position, fix it with 9
screws.

Screws

(No.10)

Front of the Scanner

Figure 4-19. Glass Frame Assembly Removal

4.2.4.5.1 Glass Frame Assembly Installation

After the glass frame assembly has been removed for any purpose, it must be
reinstalled in the following procedure.

1. Place the glass frame assembly on the specified position in the scanner
mechanism.

2. While referring to Figure 4-20, determine the installation position according
to the following procedure:

CHECK

PO INT

Positioning Bump

When installing the glass frame assembly, ensure that
glass fixing plates (one for each of the front and rear) are
properly positioned (See Figure 4-19).

Frange Shaft Stoppers

Figure 4-20. Determining the Glass Frame Assembly Position

n

Install the frange shaft stoppers at the 2 bumps located in the rear
frame.

DISASSEMBLY & ASSEMBLY Disassembly Procedures 51

GT-10000 Revision A

4.2.4.6 Lamp Assembly and Inverter Board Assembly

Removal

This section describes how to remove the lamp assembly and the inverter
board assembly from the carriage.

1. Remove the glass frame assembly (See 4.2.3.5).

2. Move the CR to the position indicated in Figure 4-22 (the position where
the front and rear frames are indented).

3. Remove 2 screws (No.2) securing the carriage mirror cover, and slide the
cover toward the rear side of the scanner to release the engagement with
the hook on the carriage. Then lift up the cover and remove it.

Screw (No.2)

4. Disconnect the connector cable for the lamp from the connector (CN2,
white) on the inverter board assembly. Then remove the lamp from the
carriage.

5. Disconnect the cable (black) from the connector (CN1) on the inverter
board ass embly. Then remove the bracket (silver) fixing t he ferrite core.

6. Remove 2 screws (No.2 ) securing the inverter board assembly.

7. Slide the inv erter board assembly toward the front side of the scanner to
release the engagement with the hook on the carriage. Then remove the
inverter board.

Figure 4-21. Carriage Mirror Cover Removal

DISASSEMBLY & ASSEMBLY Disassembly Procedures 52

GT-10000 Revision A

Lift up to remove.

p
m

a
L

CN2

Cut Part of the Board

Screws (No.2)

CHECK

PO INT

When assembling , make sure that the cover is securely
engaged with the hook on the carriage.

Hook

Rear

Cover

Carriage Base

Front

CN1

Figure 4-22. Lamp Assembly and Inverter Board Assembly

Removal

DISASSEMBLY & ASSEMBLY Disassembly Procedures 53

GT-10000 Revision A

4.2.4.7 Option Frame Assembly Removal

This s ection describes how to remove the option frame assembly attached to
the back of this scanner.

1. Remove the upper housing (See 4.2.3.1).)

2. Remove 8 screws securing the option frame assembly to the back of the
scanner and remove it. The types and locations of the screws to be
removed are as follows:

n

No.11: Locat ed in the upper right corner of the option frame assembly
(when view ed from the back of the scanner).

n

No.12: Rest of the positions are indicated in Figure 4-23 Option Frame
Assembly Removal below.

Screw (No.11)

Screws (No.12)

Figure 4-23. Option Frame Assembly Removal

DISASSEMBLY & ASSEMBLY Disassembly Procedures 54

ADJUSTMENTS

CHAPTER

5

EPSON GT-10000 Revision A

Confirm the installation folder, and click “OK”. The program will be

5.1 Upd ating Firmware

To update the firmware, the following are necessary:

o

Update Program (K90E02V)

o

SCSI Cable

o

automatically installed (data file of the firmware will be placed in the same
installation folder), and the following program group will be created on the
PC.

5.1.1 Preparations Before Updating

1. Select non-synchronized connection for SCSI on the PC (See manual for
each SCSI board). However, since the selection of non-synchronized or
synchronized setting cannot be made for the SCSI board which is not
equipped with BIOS, it is necessary to check each SCSI board beforehand.

2. Install the Update Program for the firmware according to the procedure
shown below.

o

Double-click the program “K90E02V.exe” located in the “Firmware” folder,
and the following screen will appear.

Figure 5-2.

Figure 5-1. Installation of Firmware Program

ADJUSTMENTS Updating Firmware 56

EPSON GT-10000 Revision A

5.1.2 Updating Firmware

1. Connect the scanner to the PC v ia SCSI.

2. Turn on the PC and Windows.

3. Bring up EFlash, and the EFlash start screen shown in Figure 5-3 will
appear.

4. Click “About” button to display information on the program and the required
environment as shown in Figure 5-4.

Figure 5-4. Firmware Update Requirements and Environment

5. Double-click anywhere in the above screen other than “OK” button to

Figure 5-3. Firmware Update Start Screen

display “Option” screen (shown in Figure 5-5 on the following page), and
select light correction value setting for the firmware update at “Light
Correction Value”. If the light correction is necessary after updating the
firmware, select “[Production] Perform Light Correction after EFlash”. If
firmware updat e only is desired, select “[User Update] Save and Restore
the current value”. To specify the light v alue, select “[Special] Force t o
wri te the specified value” and enter the light value.

ADJUSTMENTS Updating Firmware 57

EPSON GT-10000 Revision A

10. 1). In Figure 5-6, confirm the version of writing firmware. Name of the
scanner and the current version of ROM are shown at “Target Scanner”,
and the latest version of firmware data is shown right below.

Figure 5-6.

2). Click “Next” button for Flash Reservation.

Figure 5-5. Option Window

6. Click “OK” button in Fi gure 5-5 to go back to Figure 5-4.

7. Click “OK” button in Fi gure 5-4 to go back to Figure 5-3.

8. Make sure that the scanner is ready (green lamp is on).

9. In Figure 5-3, click “Next” button and upload the firmware according to the
following procedure:

ADJUSTMENTS Updating Firmware 58

EPSON GT-10000 Revision A

3). When the Flash Reservation is complete, “REBOOT SCANNER!”
message box will appear (Figure 5-5).

Figure 5-7.

4). Reboot the scanner. You cannot proceed to the next step without
rebooting the scanner. Make sure that “Ready” lamp is on.

5). Click “O K” to start writing the firmware. Writi ng status is indicated by
the progress bar as shown in Figure 5-8 below. When writi ng process is
complete, “REBOOT SCANNER!” message will appear on the screen
again.

Figure 5-8.

ADJUSTMENTS Updating Firmware 59

EPSON GT-10000 Revision A

6). Reboot the scanne r and click “OK”. The reboot message box will be
closed and Figure 5-9 will appear on the screen.

Figure 5-10.

Figure 5-9.

7). Make sure that the scanner is ready, and click “Next”. Figure 5-10 will
appear and the scanner version information “Before EFlash” and “After
EFlash” wi ll be displayed. Compare the version before and after EF lash to
confirm that the firmware has been properly written.

8). Click “Next” to go b a ck to the EFlash Start Screen.

9). Click “Cancel” to complete the firmware updating procedure.

ADJUSTMENTS Updating Firmware 60

EPSON GT-10000 Revision A

5.2 Light Correction

GT-10000 requires the light correction after the disassembly and assembly
procedures described in Chapter 4. Since the Firmware Update Program has
“Light Correction Value” setting as shown in 5.1 Updating Firmware, it is
recommended that the light correction be conducted together with the firmware
update.

5.2.1 Necessary Tools

No. Tool Name Function Remark

Light Correcting

1

Plate

White Standard

2

Chart

Decides position of the
White Standard Chart
and works as a weight.

Functions as white
standard for the light
correction.

Two pieces must
be used as one
set.

Must be attached
to the Light
Correcting Plate
before use.

SEC Parts

Code

1050003

1050004

5.2.2 Light Correction Procedure

This section describes the procedure for conducting the light correction.

1. Turn off the scanner.

2. Select the SCSI ID 9 with the rotary switch as shown in Figure 5-8 (factory
default is 2). ID 9 is not indicat ed on the switch panel; however, when
turning the switch counterclockwise from 0, the next ID is 9.

Figure 5- 11 . SCSI ID for Light Correction

ADJUSTMENTS Light Correction 61

EPSON GT-10000 Revision A

3. Remove the Document Unit Cover, and place the light correction tools
(Light Correcting Plates att ached w i th the Whi te S tan dard Chart) on the
glass as shown i n Figure 5-12.

CAUTIO N

4. While pressing the push button, turn on the scanner. Keep pressing the
push button until the lamp turns on.

5. The scanner will automatically correct the light value.

6. Turn off the scanner, and set t he SCSI ID rotary switch back to No. 2. The
light correct ion process is now complete.

n

To ensure the accurate light correction value, the White
Standard Chart which has flaws or smudges on its surface
must be replaced.

n

Replacement procedure for the White Standard Chart is as
follows:

- Peel off the double-face ta pe attached to the White Standard
Chart.

- Attach the White Standard Chart to the Light Correcting
Plates al ong the two lines engraved on the plate surface.

CAUTIO N

If the corrected light value does not meet the standard
values, error lamp on the front control panel flashes to
indicate an error. In such a case, it is necessary to conduct
the light correctio n again.

Figure 5-12. Light Correcting Plates Setting

CHECK

PO INT

White Standard Chart must be tightly attached to the glass
surface.

n

Use two Ligh t Correcting Plates as one set.

CHECK

PO INT

The corrected light value cannot be confirmed until the next
time the light correction is conducted (See Figure 5-13).

n

ADJUSTMENTS Light Correction 62

EPSON GT-1000

0

A

S

n

3

Figure 5-13. Light Value of t he Scanner

Revision

ADJUSTMENT

Light Correctio

6

MAINTENANCE

CHAPTER

6

EPSON GT-10000 Revision A

Maintenance procedures for GT-10000 are the same as those of GT-12000.

MAINTENANCE 65

APPENDIX

CHAPTER

7

EPSON GT-10000 Revision A

7.1 Connector Pin A ss ig nm ent

7.1.1 Connector Pin Assignment

Scanner Mechanism

B054PNL

Board

CN3

B0931SN

Board

CN2

CN1

CN4

Motor

(Mirror)

CN4

B093SUB Board

HP Sensor

(Mirror)

CN5

B054PSH Board

Scan

Navigation

Button

6
N
C

7.1.2 Connector Summary

Connectors used on the electrical circuit boards are summarized in the table
below.

Table 7-1. Connector Summary

Board

B093MAIN

B054PSH

CN

No.

CN1 For connection with SCSI I/F 7.1.2.1 Table 7-4

CN2 For connection with SCSI I/F 7.1.2.1 Table 7-4

CN3 For connection with ADF/TPU Option 7.1.2.1 Table 7-6

CN4 For connection with B093SUB Board 7.1.2.1 Table 7-2

CN5 Power supply line from B054PSH Board 7.1.2.1 Table 7-3

CN1 For connection with AC inlet –

CN2 Power supply line for B093MAIN Board

CN1 For connection to B093MAIN Board 7.1.2.1 Table 7-2

CN2 For connection to B093ISN Board –

CN3 For connection to B054PNL Board

Function Ref.

GT-12000 Service
Manual 7-3

GT-12000 Service
Manual 7-4

GT-12000 Service
Manual 7-5

GT-12000 Service
Manual 7-5

–

CN2

SCSI

I/F

B093MAIN Board

CN1SW

SCSI

I/F

SWD1

CN3

ADF/TPU

I/F

B093SUB

5
N
C

2
N
C

CN1

CN4 For connection to the motor

CN5 For connection to HP sensor (mirror)

CN6

For connection to Scan Navigation Button
Board

AC Input

APPENDIX Connector Pin Assignment 67

EPSON GT-10000 Revision A

7.1.2.1 Main Board Circuit Signals

B093MAIN – RELAY CONNECTOR (CN4)

Table 7-2.

PIN No. Signal Name Function

1 GND GND

2 GND GND

3 GND GND

4 ADCLK AD clock

5 CLP Not used.

6 GND GND

7 STB Shutte r (bl ue ) for CCD

8 STR Shutter (red) for CCD

9 RS Reset signal for CCD

10 GND GND

11 CLKA Cl ock si gnal for CCD

12 GND GND

13 AD1 Image data (1) af te r AD conversion

14 AD3 Image data (3) af te r AD conversion

15 AD5 Image data (5) af te r AD conversion

16 AD7 Image data (7) af te r AD conversion

17 AD9 Image data (9) af te r AD conversion

18 AD11 I ma ge data (11) aft e r AD conve rs i on

19 SLOAD Serial light signal for ADC

20 SCK1 Serial clock signal for ADC

21 OPSW Powe r swi tch (s econdar y side )

Table 7-2.

PIN No. Signal Name Function

22 LEDP LED (POWER)

23 LEDR LED (ERROR)

24 GND GND

25 GND GND

26 +24V Power supply (+24V)

27 +24V Power supply (+24V)

28 HMMP Home sensor power supply

29 MMB Motor (Phase B)

30 MMBX Motor (Phase /B)

31 +12V Power supply (+12V)

32 +12V Power supply (+12V)

33 LCMP Clamp signal for ADC, Start signal

34 GND GND

35 CDS2 Data sampling signal for ADC

36 CDS1 Reference sampling signal for ADC

37 STG Shutter (green) for CCD

38 GND GND

39 CLKC LH signal for CCD

40 CLKB Not used.

41 SHFT Shift signal for CCD

42 AD0 Image data (0) after AD conversion

43 AD2 Image data (2) after AD conversion

44 AD4 Image data (4) after AD conversion

45 AD6 Image data (6) after AD conversion

46 AD8 Image data (8) after AD conversion

APPENDIX Connector Pin Assignment 68

EPSON GT-10000 Revision A

Table 7-2.

PIN No. Signal Name Function

47 AD10 Image data (10) after AD conversion

48 GND GND

49 SDAT1 Serial data signal for ADC

50 PUSHB Push button si gnal

51 RSSW Reset switch

52 LEDR LED (READY)

53 +5V Power supply (+5V)

54 GND GND

55 LMP Lamp signal

56 +24V Powe r supply (+24V)

57 HMM Home se ns or signal

58 MMA Motor (Phase A)

59 MMAX Motor (Phase /A)

60 GND GND

Table 7-3.

PIN No. Signal Name Function

7 +5V Power supply (for logic line)

8 +5V Power supply (for logic line)

9 +15V Power supply (for generating +12V)

10 GND GND

11 TEMP Output from the thermistor

12 OPSW Power switch (secondary side) control signal

B093MAIN - POWER SUPPLY CONNECTOR (CN5)

Table 7-3.

PIN No. Signal Name Function

1 +24V Powe r s upply (for motor dri ve, la m p)

2 +24V Power supply (for motor drive, lamp)

3 +24V Power supply (for motor drive, lamp)

4 GND GND

5 GND GND

6 GND GND

APPENDIX Connector Pin Assignment 69

EPSON GT-10000 Revision A

B093MAIN – SCSI I/F CONNECTOR (CN1, CN2)

Table 7-4.

PIN No. Signal Name

1GND

2 GND

3GND

4 GND

5GND

6 GND

7GND

8 GND

9GND

10 GND

11 GND

12 GND

13 -------------(NC)

Table 7-4. (continued)

PIN No. Signal Name

24 GND

25 GND

26 SD0

27 SD1

28 SD2

29 SD3

30 SD4

31 SD5

32 SD6

33 SD7

34 SDP

35 GND

36 GND

37 GND

38 TERM PWR

14 GND

15 GND

16 GND

17 GND

18 GND

19 GND

20 GND

21 GND

22 GND

23 GND

39 GND

40 GND

41 /ATN

42 GND

43 /BSY

44 /ACK

45 /RST

46 /MSG

47 /SEL

APPENDIX Connector Pin Assignment 70

EPSON GT-10000 Revision A

Table 7-4. (continued)

PIN No. Signal Name

48 /CD

49 /REG

50 /IO

B093MAIN – FAN CONNECTOR (CN2)

Table 7-5.

PIN No. Signal Name

1+12

2 GND

B093MAIN - OPTION CONNECTOR (CN3)

Table 7-6.

PIN No. Signal Name Function

1 IN1 Not used (TPU[HOME]/Select)

2 IN1 Not used (TPU[COVER]/Select)

Table 7-6.

PIN No. Signal Name Function

12 SEL Not used (Select signal for TPU)

13 +5 Power supply (+5V)

14 GND GND

15 +24 Power supply (+24V)

16 +24 Power supply (+24V)

17 GND GND

18 +5 Power supply (+5V)

19 +5 Power supply (+5V)

20 +24 Power supply (+24V)

21 RXD RXD for ADF

22 /RXD /RXD for ADF

23 /TXD /TXD for ADF

24 TXD TXD for ADF

25 DSR DSR for ADF

26 DTR DTR for ADF

3IN1

4 OU5 Not used (Lamp control signal)

5In1

6 +5 Power supply (+5V)

7 GND GND

8 +24 Power supply (+24V)

9 SDAT Not used (Motor drive serial data for TPU)

10 SCK Not used (Transfer CLK for TPU)

11 LOD Not used (Latch pulse LOD for TPU)

APPENDIX Connector Pin Assignment 71

EPSON GT-10000 Revision A

7.2 Circuit Board Component Layout

Figure 7-1. Component Layout - B093MAIN Board

APPENDIX Circuit Board Component Layout 72

EPSON GT-10000 Revision A

Component layout of th e Power Supply Board Assembly is the same as that of
GT-12000 (B054PSH Board). Refer to the corresponding section of the GT-
12000 Service Manual.

APPENDIX Circuit Board Component Layout 73

EPSON GT-10000 Revision A

7.3 Circuit Diagram

Circuit diagram of the main board is shown on the following page.

APPENDIX Circuit Diagram 74

EPSON GT-10000 Revision A

7.4 Exploded Diagrams & A SP List

7.4.1 Exploded Diagrams

Exploded diagrams of this scanner are shown on the following pages.

o

GT-10000 No.01

o

GT-10000 No.02

APPENDIX Exploded Diagrams & ASP List 76

The parts to which no reference number
is assigned will not be available as
after-sale service parts.

102

104

106

192

134

107

192

134

192

133

191

176

189

121

174

175

117

109

103

C

117

117

124

101

109

109

124

117

115

117

125

109

118

136

B

137

A

401

110

111

192
108

100

117

113

112

134

116

199

400

114

113

G

177

188
191

194

122

191

F

198

191

191 191

JP2

JP3

181

191

105

D

120

118
136

197

331

E

191

123

197

131

191

191

191

E

134

300

G

130

F

191
133

176

191

119

191

191

200

191

181

194

194

191

GT-10000 NO.01 Rev.01 10109

The parts to which no reference number
is assigned will not be available as
after-sale service parts.

548 510

519

503

B

547

514

515

504

505

517

547

191

J

547

191

535

526

535

539

547

502

560

536

536

549

533

191

536

547

535

530

531

547

549

535

547

532

A

534

549

549

547

547 505

505

511

537

H

538

509

557

191

555

556

539

512

539
505

547

543

521

541

501

522

539

514

517

551

516

516

518

546

550

K

553

541

520

540

192

545

527

513

D

191
525

I

525

192

191

558

506

552

506

527

450

K

192

506

192

192

525

C

523

547

H

192

542

508

192

551

554

I

J

507

141

140

192

GT-10000 NO.02 Rev.01 10109

EPSON GT-10000 Revision A

7.4.2 ASP List

ÈÈ

Table 7-7.

Drawing No. Parts Code Name

100 1045003 HOUSING, UPPER

101 1036233 HOUSING, LOWER

102 1045030 COVER, DOCUMENT

103 1045007 MAT, COVER, DOCUMENT

104 1045031 COVER, DOCUMENT; B

105 1038165 SHEET, INSULATION

106 1045013 FRAME ASSY., GLASS; B

107 1036636 MOUNT PLATE,GLASS,REAR

108 1036244 MOUNT PLATE, GLASS, FRONT

109 1036595 FOOT

110 1047927 LOGO PLATE; C

111 1036236 KEYTOP, RESET SWITCH

112 1036235 KEYTOP, POWER SWITCH

113 1036238 PLATE, MAGNET

114 1036241 OPTOCAL PLATE

115 1036263 KNOB, FASTEN, CR

116 1036886 SUPORT, SWITCH

117 1036246 SHEET, CASE

118 1036592 CAP, SCREW

119 1044992 SHIELD, TOP

120 1044994 INSULATOR, POWER SUPPLY, UPPER

121 1045020 COVER, SHELD, TOP

122 1044991 SHIELD, MAIN

Table 7-7.

Drawing No. Parts Code Name

123 1044993 I MSULATOR, POWER SUPPLY, LOWER

124 1036245 CAP, LOCATE

125 1045006 KEY TOP, START SWITCH

130 2030331 FAN ASSEMBLY

131 1006805 HEXAGON NUT M3,F/ZN

133 1045269 C.C.SCREW,3X6,F/ZB

134 1036880 C.B.P-TITE SCWER 4X12 F/NI

136 B010304611 C.B.SCREW M4X10

137 1016009 C.B.P-TITE SCWER 3X8 F/ZN

140 2031635 SCSI BARD

141 1047905 SCALE,SUB

174 1045023 GASKET,SHIELD

175 1045024 GASKET,SHIELD;B

176 1045025 GASKET,SHIELD;C

177 1045026 GASKET,SHIELD;D

181 1036624 SCREW LOCK

188 1045120 BSB SPACER

189 1045027 GRIP,COVER,SHIELD

191 B300204211 C.B.S. SCREW M3X6

192 B010350511 C.B.SCREW M3X3

194 1045289 C.

197 B300204311 C.B.S. SCREW M3X8

198 1003978 C.B.SCREW M3X20

199 B045800115 C.B.(O) SCREW M4X8 F/ZG

200 2030038 BOARD ASSY,MAIN

APPENDIX Exploded Diagrams & ASP List 79

EPSON GT-10000 Revision A

Table 7-7.

Drawing No. Parts Code Name

300 2025122 BOARD ASSY.,PS

331 2025126 HARNESS

400 2002364 POWER CABLE,(VD31303SA-10A)

401 2031709 INTERFACE CABLE

450 2025234 BOARD ASSY., PNL

500 2032531 MECHA UNIT,ASP

501 1036327 COVER,CARRIAGE,MIRROR

502 1045000 COVER,HOLDER,LENS

503 1036261 FASTENING PLATE,CR

504 1036264 SPRING,FASTEN,CR

505 1036331 STOPPER,CR

506 1036314 SPRING,GROUND

507 1044988 GROUNDING PLATE,FRAME

508 1044987 SUPPORT PLATE,BOARD,CONNECTOR

509 1036979 LEVER ASSY.,TENSION

Table 7-7.

Drawing No. Parts Code Name

520 2025158 HARNESS,MORTOR,CR

521 2025177 BOARD ASSY.,INVERTER

522 1036326 INSULATION PLATE,INVERTER

523 1036332 GROUNDING PLATE,LAMP,FFC

525 1044989 GROUNDING PLATE,BARD,SUPPORT PLATE

526 1047906 FLANGE,SHAFT,STOPPER

527 X510060030 SNAP BAND

530 1044985 FRAME,OPTION

531 1043766 MOUNT PLATE,L

532 1043767 MOUNT PLATE,R

533 1036321 HOLDER,L

534 1036322 HOLDER,R

535 1036884

536 1038310 C.F.S.SCREW,4X10,F/ZN

537 1014853 C.P.F.S-TITE,3X8,F/ZN

510 1025473 ROLLER,TENSION

511 1050062 TORSION SPRING, 100.9

512 2025176 LAMP ASSY.

513 2030042 BOARD ASSEMBLY.,SUB

514 1017596 SHAFT,DAMPER,CR;B

515 2030332 MOTOR ASSEMBLY,CR

516 1012618 DAMPER,CR

517 1008492 PLAIN WASHER

518 1047010 FERRITE CORE

519 1036262 SHAFT,FASTEN,CR

538 1050061 SPACER,3*1.6

539 1038311 C.B.P-TITE SCREW,4X18,F/ZN

540 2025173 FERITECORE

541 1036598 DOUBLE SIDE TAPE,12.5X17

542 1036313 MOUNT PLATE,FERRITE CORE,PANEL

543 2025172 FERITECORE

545 2021833 DETECTOR,HP;C

546 2025156 HARNESS,HP,CR

547 B010303311 C.B.SCREW M3X6

548 B150300611 RETAINING RING

APPENDIX Exploded Diagrams & ASP List 80

EPSON GT-10000 Revision A

Table 7-7.

Drawing No. Parts Code Name

549 B010304411 C.B.SCREW M4X6

550 1047790 FORM,SHIELD;C

551 1047791 FORM,SHIELD;D

552 2030340 CABLE,INVERTOR

553 2030179

554 2030180

555 2030182 BOARD ASSY.,SUB

556 1044990 HOLDER,BOARD,SWITCH

557 2030181

558 1038167 SHEET,FFC

560 B010303618 C.B.SCREW M3X12

APPENDIX Exploded Diagrams & ASP List 81