Epson Perfection4180 Photo User manual

EPSON Perfection4180 Photo
Auto Document Feeder
Color Image Scanner
Service Manual Image
SESC04-005

Notice
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, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.
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.
The contents of this manual are subject to change without notice.
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 © 2004 SEIKO EPSON CORPORATION.
I&I CS/Quality Management & PL Department

PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1) Personal injury and 2) damage to equipment.
DANGER 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.
WARNING Signals a precaution which, if ignored, could result in damage to equipment.
The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.
DANGER
1. ALWAYS DISCONNECT THE PRODUCT FROM THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURES.
2. NO WORK 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.
4. WHEN DISASSEMBLING OR ASSEMBLING A PRODUCT, MAKE SURE TO WEAR GLOVES TO AVOID INJURIER FROM METAL PARTS WITH SHARP EDGES.
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. DO NOT REPLACE IMPERFECTLY FUNCTIONING COMPONENTS WITH COMPONENTS WHICH ARE NOT MANUFACTURED BY EPSON. IF SECOND SOURCE IC OR
OTHER COMPONENTS WHICH HAVE NOT BEEN APPROVED ARE USED, THEY COULD CAUSE DAMAGE TO THE EPSON PRODUCT, OR COULD VOID THE
WARRANTY OFFERED BY EPSON.

About This Manual
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the printer. 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.
Manual Configuration
This manual consists of four chapters and Appendix.
CHAPTER 1.PRODUCT DESCRIPTION
Describes the features and basic specifications of the product.
CHAPTER 2.OPERATING PRINCIPLES
Describes the electrical and mechanical basic operating principles of the
product.
CHAPTER 3.TROUBLESHOOTING
Describes the step-by-step procedures for the troubleshooting.
CHAPTER 4.DISASSEMBLY/ASSEMBLY
Describes the step-by-step procedures for disassembling and assembling
the product.
CHAPTER 5.ADJUSTMENT
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.
APPENDIX Provides the following additional information for reference:
• Connector pin assignments
• Electric circuit boards components layout
• Electrical circuit boards schematics
• Exploded diagram
•PartsList
• Optional part: ADF
Symbols Used in this Manual
Various symbols are used throughout this manual either to provide additional
information on a specific topic or to warn of possible danger present during a
procedure or an action. Be aware of all symbols when they are used, and always read
NOTE, CAUTION, or WARNING messages.
Indicates an operating or maintenance procedure, practice or
condition that is necessary to keep the product’s quality.
Indicates an operating or maintenance procedure, practice, or
condition that, if not strictly observed, could result in damage to,
or destruction of, equipment.
May indicate an operating or maintenance procedure, practice or
condition that is necessary to accomplish a task efficiently. It
may also provide additional information that is related to a
specific subject, or comment on the results achieved through a
previous action.
Indicates an operating or maintenance procedure, practice or
condition that, if not strictly observed, could result in injury or
loss of life.
Indicates a product reassembly procedure, practice or condition
that must be executed in accordance with the specified standards
to keep the product's quality.
A D J U S T M E N T
R E Q U I R E D
C A U T I O N
CHECK
P O I N T
W ARNING

Revision Status
Revision Date of Issue Description
A July 30, 2004 First release

EPSON Perfection4180 Photo Revision A
6
Contents
Chapter 1 PRODUCT DESCRIPTION
1.1 Features.................................................................................................................. 9
1.2 Specifications ...................................................................................................... 10
1.3 Supported Environment....................................................................................... 13
1.4 Interface Specifications ....................................................................................... 13
1.5 Exterior Specifications ........................................................................................ 14
1.5.1 Explanation of switches............................................................................ 14
1.5.2 Indicators .................................................................................................. 14
1.5.3 Dimensions ............................................................................................... 15
1.5.4 Scanning Range ........................................................................................ 16
1.6 Control Codes...................................................................................................... 17
1.7 Error Handling..................................................................................................... 18
Chapter 2 OPERATING PRINCIPLES
2.1 Engine Operation Outline.................................................................................... 20
2.1.1 Carriage Unit outline ................................................................................ 20
2.1.2 Carriage Moving Mechanism operation ................................................... 21
2.2 Operation Principle of Electric Circuit................................................................ 22
Chapter 3 TROUBLESHOOTING
3.1 Overview ............................................................................................................. 24
3.1.1 Self-diagnostic Function........................................................................... 24
3.2 Troubleshooting................................................................................................... 25
Chapter 4 DISASSEMBLY/ASSEMBLY
4.1 Overview ............................................................................................................. 30
4.1.1 Precautions................................................................................................ 30
4.1.2 Recommended Tools ................................................................................ 30
4.1.3 The List of Recommended Screws........................................................... 31
4.2 Disassembly Procedure ....................................................................................... 32
4.2.1 Removal of TPU Unit............................................................................... 33
4.2.2 Removal of Housing Upper...................................................................... 34
4.2.3 Removal of Carriage Unit......................................................................... 35
4.2.4 Removal of Panel Board........................................................................... 38
4.2.5 Removal of Main Board ........................................................................... 39
4.2.6 Removal of Power Switch ........................................................................ 41
4.2.7 Removal of Panel FFC ............................................................................. 43
4.2.8 Removal of Driven Pulley, Driven Pulley Spring and
Driven Pulley Holder Assy........................................................................45
4.2.9 Removal of CR Motor Unit, Motor Tension Belt and CR Tension Belt.. 46
4.2.10 Removal of TPU Inverter Board .............................................................. 48
4.2.11 Removal of Hinges ................................................................................... 51
Chapter 5 ADJUSTMENT
5.1 Overview ............................................................................................................. 53
5.1.1 Adjusting jig ............................................................................................. 53
5.1.2 Adjustment item ....................................................................................... 53
5.1.3 Adjustment method................................................................................... 53
Chapter 6 MAINTENANCE
6.1 Overview ............................................................................................................. 55
6.1.1 Cleaning.................................................................................................... 55
6.1.2 Lubrication................................................................................................ 56

EPSON Perfection4180 Photo Revision A
7
Chapter 7 APPENDIX
7.1 Connectors........................................................................................................... 58
7.1.1 Connector configuration ........................................................................... 58
7.1.2 Connector Alignment................................................................................ 58
7.2 Circuit Diagrams ................................................................................................. 59
7.3 Exploded diagram................................................................................................ 65
7.4 Parts List.............................................................................................................. 69
7.5 Optional Part; Auto Document Feeder ................................................................ 70
7.5.1 Overview................................................................................................... 70
7.5.2 Basic specifications .................................................................................. 70
7.5.3 Interface .................................................................................................... 72
7.6 ADF; Disassembly............................................................................................... 73
7.6.1 Removal of B81334 Main Board.............................................................. 73
7.6.2 ASF Part.................................................................................................... 74
7.6.3 Disassembly of ASF and Frame ............................................................... 80
7.6.4 Disassembly of ASF Assembly ................................................................ 82
7.7 ADF; Lubrication ................................................................................................ 88

CHAPTER
1
PRODUCT DESCRIPTION

EPSON Perfection4180 Photo Revision A
PRODUCT DESCRIPTION Features 9
1.1 Features
The main features of the EPSON Perfection4180 Photo are as follows.
High quality
Resolution
4800dpi (Optical resolution by 6 line CCD with 122,400 pixels)
Depth
16bit (16bit-in, 16bit-out)
High Speed
Monochrome (bi-level)
25 sec
Color
33 sec
Operating environment for scanning
A4 600dpi, Reflective, Draft mode
Easy operation
EPSON Smart Panel 3.2
•Scan to PDF
•Achieved easy scanning with 4 buttons
(Scan Start, Easy photo print (Copy), Scan to E-mail, Scan to File)
•Export a image data to applications easily
•PRINT Image Matching 2 capabilities ensure more accurate printout with
PRINT Image Matching EPSON printers
EPSON Scan
• New graphic user interface: Full Auto Mode, Home mode and Professional Mode
•Works not only as a TWAIN driver but also as a stand-alone application to
save image without a graphic application e.g. Photoshop.
•Professional tools are added: Histogram, multiple level un-sharp mask and
descreening, Photoshop like Tone curve editor
•New dust remove function for films
•New photo restoration function
•Full automatic mode for reflective and films
•Thumbnail view support
•Monochrome negative film support
Equip Lid Type TPU
Built-in 2.6" x 9.1" transparency unit included for scanning:
•35 mm x 12 frames Stripfilm
•35 mm x 4 frames Mount film
•Medium format (6 x 12cm) x 1 frame Stripfilm (120/220)
•Medium Format x 1 frame (Negative / Positive) Max 6 x 12 cm
High Performance Interface
Equip USB2.0 interface
Option
ADF unit supporting A4 and Legal size of document

EPSON Perfection4180 Photo Revision A
PRODUCT DESCRIPTION Specifications 10
1.2 Specifications
BASIC SPECIFICATIONS
Product Type
Flatbed color image scanner
Scanning method
Fixed documents and moving carriage
Optical Sensor
Alternative 6 lines color CCD with Micro-lens
Max Scan Area
8.5" x 11.7" (216mm x 297mm)
Document Size
A4, US letter
Max effective Picture Element
40800 x 56160 pixels (4800 dpi)
Scanning Resolution
Main 4800 dpi (Optical resolution by 6 line CCD with 122400 pixels)
Sub 9600 dpi with Micro Step
Output Resolution
50 to 6400 dpi (1dpi step), 9600, 12800 dpi
Pixel depth
16 bits/pixel (Input 16 bits/pixel, Output 16 bits/pixel)
Scanning Speed
4800 dpi Reflective
•Color 16.896 msec/line
•Monochrome (bi-level) 16.896 msec/line
600 dpi Reflective
•Color 4.096 msec/line
•Monochrome (bi-level) 4.096 msec/line
Interface
USB2.0
Light Source
White Cold cathode Fluorescent Lamp
Start Button
4 Push Buttons: Ease of use with EPSON Smart Panel 3.2
ELECTRICAL SPECIFICATIONS
Electric characteristic of Main Unit
Rated Voltage 24VDC
Input Voltage DC24 to 26.4V
Power Consumption
•Operating : 25W
•Standby Mode : 19.5W
•Sleep Mode : 4.5W
Rated Current 1.4A
Electrical specification of AC adapter
Rated Voltage AC100-120V (100V system)
AC220-240V (200V system)
Input Voltage AC100-120V± 10% (100V)
AC220-240V ± 10% (200V)
Rated Input Current 0.8A (AC 100V system)
0.4A (AC 200V system)
Rated Input Frequency Range 50 to 60Hz
Input Frequency Range 50 to 60Hz ± 0.5Hz
Output Voltage DC24 to 26.4V
Rated Output Current 1.4A
Insulation Resistance For DC500, Above 100MΩ
(AC input terminal & DC output terminal)

EPSON Perfection4180 Photo Revision A
PRODUCT DESCRIPTION Specifications 11
Withstand Voltage
•AC3.0KV, 1min. (AC input terminal & DC output terminal): 100V system
•AC3.0KV, 1min. (AC input terminal & DC output terminal): 200V system
Electric Current Leakage
•AC100V, Below 1500Ω0.25mA : 100V system
•AC240V, Below 1500Ω2.5mA : 200V system
(AC line & metal part of strip)
Initial Rush in current MAX 50A (100V), 40A (200V)
Electrical specification of TPU
Rated Voltage 24 VDC
Input Voltage DC24 to 26.4V
Input Current 0.5A
Electrical specification of ADF
Rated Voltage DC24V, DC5V
Input Voltage DC24 to 26.4, DC5V±5%
Input Current 0.8A (24V)
0.2A (5V)
COMPATIBLE SPECIFICATIONS
Safety Standard (Safety and EMC)
Scanner
•100V FCC15B Class B (USA)
CSA108.8 Class B (Canada) (FCC represents)
•200V EN55022 (CISPR Pub22) Class B
EN61000-3-2
EN61000-3-3
EN55024
AS/NZS3548 Class B (Australia)
Korea EMC
Russia consumer protection law
CCC (China)
AC Adaptor
•100V UL1950/CSA C22.2 No.950 (North American,
UL/CSA Obtain by each other)
UL1310/CSA C22.2 No.223 (As above)
NOM (Mexico)
•200V IEC60950 (Get CB report)
GS (German)
AS/NZS3260 (Australia)
GOST (Russia)
Singapore safety standard (Singapore)
Russia consumer protection law
Korea safety regulation (Korea)
Polish safety (Poland)
Argentina safety (Argentina)
SASO (Saudi Arabia)
CCC (China)
Environmental Protection
International Energy Star Program
ELECTRICAL NOISE RESISTANCE
Static electricity
Contact Discharge 4.5kV
Air discharge 8.5kV
ENVIRONMENTAL CONDITIONS
Temperature
Operating 5°C to 35°C (Scanning with ADF: 10°C to 32°C)
Storage -25°C to 60°C
Humidity
Operating 10 to 80%, no condensation
(Scanning with ADF: 20 to 80%)
Storage 10 to 85%, no condensation

EPSON Perfection4180 Photo Revision A
PRODUCT DESCRIPTION Specifications 12
RELIABILITY
Carriage back and forth MCBF 36000 cycles
OPERATING CONDITIONS
Dust
Ordinary office or home conditions.
Extreme dust should be avoided.
Illumination
Operation under direct sunlight or near strong light source is not guaranteed and
should be avoided.
DOCUMENT
Reflective type
Documents that have a smooth surface such as a printing and photograph.
Transparent documents
35 mm x 12 frames Strip film (Negative / Positive)
35 mm x 4 frames Mount film (Negative / Positive)
Medium format (6 x 12cm) x 1 frame Strip film (120/220)
ADF
Fine quality paper, Bond paper, Check paper, Recycled paper

EPSON Perfection4180 Photo Revision A
PRODUCT DESCRIPTION Supported Environment 13
1.3 Supported Environment
The scanner supports the following environment.
FIRMWARE AND SOFTWARE
Command Level
ESC/I (D2)
Gamma Correction
User defined 1 level
Color Correction
User defined
Line Art
Fixed threshold
Operating System
1.4 Interface Specifications
The interfaces of this scanner are shown below.
Figure 1-1. Interface
USB 2.0
Universal Serial Bus Specification Revision 2.0
Vendor ID 04B8h
Product ID 0118h
Connectors (Resident)
USB2.0 (Type-B standard Connector) x 1pce
USB Hosts
All of USB ports work correctly. (The functionality of the USB port(s) must be
ensured by the vendor of the Host.)
Number of Hub
This device must be in the Tier 1 or 2 with recommend USB cable.
(Tier 1: Host-this device, Tier 2: Host-Hub-this device)
Interface Operating System
USB 1.1 I/F • Microsoft Windows XP Home/Professional
• Microsoft Windows 2000 Professional
• Microsoft Windows 98/Me
• Mac OS 9.1 or later, Mac OS X 10.2 or later
USB 2.0 I/F • Microsoft Windows 2000 Professional
• Microsoft Windows XP Home/Professional
(USB 2.0 I/F is supported by Pre-Install PC or upgrade PC from Windows
2000 Professional model. With Windows 2000 Professional, USB 2.0 I/F is
supported with Microsoft Driver)
• Mac OSX 10.2.7 or later
(USB 2.0 I/F is a standard equipped by PC)
TPU Unit Connector
AC Input
USB2.0

EPSON Perfection4180 Photo Revision A
PRODUCT DESCRIPTION Exterior Specifications 14
1.5 Exterior Specifications
1.5.1 Explanation of switches
Start Button
Starts the EPSON Smart Panel.
Copy Button
With a single touch of the button, print photos and makes prints from films.
Scan to E-mail Button
With a single touch of the button, sends the scanned image by an e-mail.
Scan and Save Button
One-touch operation from scanning to storing.
1.5.2 Indicators
The Status LED indicates the scanner's status by lighting and its color.
Status LED
Location Located inside start button
Colors Green + Red
Note *1: Warm up, scanning, initializing, etc.
*2: Some errors may not be indicated. (Option error, Command error)
Figure 1-2. Switches and LEDs
Status lamp (LED) Status
Green on Ready
blinking (long time interval: Green) Busy*1
blinking (short time interval: Red) ERROR*2
LED off Operate off
Start ButtonScan to E-mail Button
Scan and Save Button Copy Button Status LED

EPSON Perfection4180 Photo Revision A
PRODUCT DESCRIPTION Exterior Specifications 15
1.5.3 Dimensions
Dimensions and Weight
Dimensions 276 (W) x 458 (D) x 117 (H)mm
Weight Approx. 3.9Kg
Overview
Figure 1-3. Perfection4180Photo Overview
Unit: mm
276
117
77
458

EPSON Perfection4180 Photo Revision A
PRODUCT DESCRIPTION Exterior Specifications 16
1.5.4 Scanning Range
SCANNING RANGE FOR REFLECTIVE DOCUMENT
Size 216 x 297mm (horizontal x vertical)
Figure 1-4. Scanning range for reflective document
TRANSPARENT DOCUMENT
Size 66.04 x 231.1mm (horizontal x vertical)
Figure 1-5. Transparent document
216 1 ± 0.5
1.6
± 0.5
297
Unit: mm
Origin point
Front Unit: mm
Origin point
66.04
69.43
± 1.5
21.0
± 1.5
231.1
Front

EPSON Perfection4180 Photo Revision A
PRODUCT DESCRIPTION Control Codes 17
1.6 Control Codes
Following table is the list of control codes of the scanner.
Category Command Name Code
Command ID request ESC I
Status request ESC F
Extended status request ESC f
Request command parameters ESC S
Start scanning ESC G
Push button status request ESC !
Request extended ID status FS I
Request scanner status FS F
Request command parameter FS S
Start scanning FS G
Set data form Set data format ESC D i
Set resolution ESC R n1 n2
Set scanning area ESC A n1 n2 n3 n4
Set color ESC C i
Set scanning parameter FS W
Correction Set gamma correction ESC Z i
Down load gamma table ESC z i d [256]
Image disposition Set threshold ESC t I
Support and others Set scanning mode ESC g i
Initialize ESC @
Set line counter ESC d i
Option control ESC e i
Set film type ESC N i
Eject paper FF
Feed paper PF
Cancel warm up ESC w
Control Normal response ACK
Abnormal response NACK
Stop scanning CAN
Header STX
Category Command Name Code

EPSON Perfection4180 Photo Revision A
PRODUCT DESCRIPTION Error Handling 18
1.7 Error Handling
Table 1-1. Error Definition and Remedy List
Error type Indicator Cause Disposition Remedy
Command error Nothing especially Unidentifed command is detected. • The scanner (interpreter) ignores the wrong
command or parameter. (Therefore, the
current settings or the default value remain
effective.)
• Scanner (interpreter) sends NACK, and
waits next command or parameter.
The error condition is cleared when the scanner
(interpreter) received a correct command.
Fatal error Red LED blinking
(short interval)
The scanner is malfunction due to for example
lamp is or Carridge cannot return home
• The lamp goes off and the scanner stops
operation.
• The bit 7 of the status byte is set.
Turn the scanner off and then back on.
Fail to download Firmware

CHAPTER
2
OPERATING PRINCIPLES

EPSON Perfection4180 Photo Revision A
OPERATING PRINCIPLES Engine Operation Outline 20
2.1 Engine Operation Outline
This section explains the functions and operating principles of the Perfection4180
Photo Engine. The Engine is roughly divided into the Carriage Unit and Carriage
Moving Mechanism.
2.1.1 Carriage Unit outline
The Carriage Unit can be divided into the CCD Sensor Board, Inverter Board, Lamps
(light source), and Mirror/Lens Mechanism. (Refer to Figures 2-1, 2-2.)
Figure 2-1. Carriage Unit Configuration
CCD Sensor Board Forms an alternative six-lines color CCD (R, G, B
independent) and its control and drive circuits.
Inverter Board Boosts +24VDC and converts DC to AC to generate
the voltage for driving the Lamps (white cool cathode
fluorescent lamps).
Lamps White cool cathode fluorescent lamps are used as a
light source. When the amount of light is not stable, the
Panel LED flashes and enter the standby mode until it
becomes stable.
Mirror/Lens Mechanism The beam applied to the scanned document is reflected,
passes through the Mirror/Lens Mechanism in the
Carriage Unit for correction of the beam axis, and then
reaches the CCD Sensor. The light components R, G, B
are extracted by the Color CCD Sensor itself, not by
switching between R, G and B of the light source as
previously.
Figure 2-2. Mirror/Lens Mechanism