Epson Stylus Photo RX600 User manual

EPSON StylusPHOTORX600/610,
RX620/630
Scanner •Printer •Copier
SERVICE MANUAL
SEOT03006
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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, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.
The contents of this manual are subject to change without notice.
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 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 © 2003 SEIKO EPSON CORPORATION.
I&I CS Quality Promotion Dept.
(Printer Technical Support Grp.)
Imaging & Information Products Div.
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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.
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 NON-APPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON
WARRANTY.
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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 six chapters and Appendix.
CHAPTER 1.PRODUCT DESCRIPTIONS
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
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 & Parts List
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 that a particular task must be carried out according to a
certain standard after disassembly and before re-assembly,
otherwise the quality of the components in question may be
adversely affected.
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
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Revision Status
Revision Date of Issue Description
ADecember 10, 2003 First release
BFebruary 2, 2004 CHAPTER 3 TROUBLESHOOTING
•3.2 Troubleshooting at Unit Level / Table 3-1 LCD Indication (p.21) is modified.
CHAPTER 4 DISASSEMBLY AND ASSEMBLY
•4.1.5 Stylus PHOTO RX600/610, RX620/630 Disassembly (p.40) is modified.
•4.5 Disassembly and Assembly of Printer Unit (p.50) is modified.
•4.5.3 Printhead (p.54) is added.
•4.5.7 Front Frame Assembly (p.58) is added.
•4.5.8 Front Paper Guide (p.58) is added.
•4.5.9 Waste Liquid Pad (p.59) is added.
CHAPTER 5 ADJUSTMENT
•5.2 Adjustments by Adjustment Program (p.66) is added.
CHAPTER 7 APPENDIX
•7.1 Connectors / 7.1.1 Connector Assignments (p.87) is modified.
• A figure is added to 7.4 Exploded Diagrams (p.96).
• A list is added to 7.5 ASP List (p.103).
CSeptember 15, 2004 Add the Stylus PHOTO RX620/630 description
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EPSON Stylus PHOTO RX600/610, RX620/630 Revision C
6
CONTENTS
Chapter 1 Product Description
1.1 Overview .............................................................................................................. 9
1.1.1 Basic Functions ........................................................................................... 9
1.1.2 Main deference between RX600/610 and RX620/630 ............................. 10
1.2 Common ............................................................................................................ 10
1.2.1 Electrical Specifications ........................................................................... 10
1.2.2 Interface .................................................................................................... 11
1.2.3 Conformance with Safety and EMC Standards ........................................ 11
1.2.4 Environmental Conditions ........................................................................ 11
1.2.5 Reliability ................................................................................................. 11
1.2.6 Acoustic Noise .......................................................................................... 11
1.2.7 Weight and Overall Dimensions ............................................................... 12
1.3 Ink Cartridge .................................................................................................... 12
Chapter 2 Operating Principles
2.1 Overview ............................................................................................................ 14
2.2 Mechanism ........................................................................................................ 14
2.2.1 Printer Mechanism .................................................................................... 14
2.2.1.1 Carriage Motor Specification ............................................................ 15
2.2.1.2 Printerhead Specification .................................................................. 15
2.2.1.3 Paper Feeding Motor Specification ................................................... 15
2.2.1.4 PW Detector Specification ................................................................ 15
2.2.2 Scanner Mechanism .................................................................................. 16
2.3 Electric Circuit .................................................................................................. 17
2.3.1 C543 Main Circuit Board ......................................................................... 18
2.3.1.1 Feature ............................................................................................... 18
Chapter 3 Troubleshooting
3.1 Overview ............................................................................................................ 20
3.1.1 Specified Tools ......................................................................................... 20
3.1.2 Preliminary Checks ................................................................................... 20
3.2 Troubleshooting at Unit Level ......................................................................... 21
3.2.1 Printer / Scanner does not operate at all
even with power turned on ........................................................................ 22
3.2.2 Error is detected ........................................................................................ 23
3.2.3 Trouble related to Print ............................................................................. 23
3.2.4 Paper feeding is not normally carried out ................................................. 24
3.2.5 Operation Panel faulty .............................................................................. 24
3.3 Troubleshooting for Printer ............................................................................ 25
3.4 Troubleshooting for Scanner ........................................................................... 32
3.5 I/F Concerned Troubleshooting ...................................................................... 34
3.6 Troubleshooting for Motors and Sensors ................................................ 35
Chapter 4 Disassembly and Assembly
4.1 Overview ............................................................................................................ 37
4.1.1 Precautions ................................................................................................ 37
4.1.2 Tools ......................................................................................................... 38
4.1.3 Screws ....................................................................................................... 38
4.1.4 Service Dispatch Standard ........................................................................ 39
4.1.5 Stylus PHOTO RX600/610, RX620/630 Disassembly ............................ 40
4.2 Main Unit Removal .......................................................................................... 41
4.2.1 Panel Unit Removal .................................................................................. 41
4.2.2 Scanner Unit Removal .............................................................................. 42
4.2.3 Middle Housing Removal ......................................................................... 43
4.3 Disassembly and Assembly of Panel Unit ....................................................... 45
4.3.1 Panel Circuit Board Removal ................................................................... 45
4.3.2 LCD ASSY Removal ................................................................................ 46
4.3.3 Disassembly and Assembly of LCD ASSY ............................................. 46
4.4 Disassembly and Assembly of Scanner Unit .................................................. 47

EPSON Stylus PHOTO RX600/610, RX620/630 Revision C
7
4.4.1 Upper Housing Assembly Removal ......................................................... 48
4.4.2 CCD Module ............................................................................................. 49
4.4.3 Motor Assembly ...................................................................................... 49
4.4.4 HP Sensor Circuit Board .......................................................................... 49
4.5 Disassembly and Assembly of Printer Unit .................................................... 50
4.5.1 CR Scale ................................................................................................... 51
4.5.2 Carriage Unit ............................................................................................ 52
4.5.3 Printhead ................................................................................................... 54
4.5.4 ASF Unit Removal ................................................................................... 55
4.5.5 Disassembly of ASF Unit ......................................................................... 56
4.5.6 Power Unit ................................................................................................ 57
4.5.7 Front Frame Assembly ............................................................................. 58
4.5.8 Front Paper Guide ..................................................................................... 58
4.5.9 Waste Liquid Pad ...................................................................................... 59
4.6 Disassembly and Assembly of Other Parts .................................................... 60
4.6.1 Damper Assembly .................................................................................... 60
4.6.2 Stacker ...................................................................................................... 60
4.6.3 Main Board Unit ....................................................................................... 61
Chapter 5 Adjustment
5.1 Overview ............................................................................................................ 64
5.1.1 Adjustment Items for Individual Units and Components ......................... 65
5.2 Adjustments by Adjustment Program ............................................................ 66
5.2.1 Overview ................................................................................................... 66
5.2.1.1 Installing the Adjustment Program .................................................... 66
5.2.1.2 Starting the Adjustment Program ...................................................... 66
5.2.2 Adjustment ................................................................................................ 67
5.2.2.1 Market Setting (EEPROM initialization) .......................................... 67
5.2.2.2 USB ID .............................................................................................. 68
5.2.2.3 Head ID ............................................................................................. 69
5.2.2.4 Head Angular Adjustment ................................................................. 69
5.2.2.5 1st Dot Position Adjustment .............................................................. 70
5.2.2.6 Bi-D Adjustment ............................................................................... 71
5.2.2.7 PW Adjustment ................................................................................. 72
5.2.2.8 Calorific Limitation Input ................................................................. 73
5.2.3 Maintenance .............................................................................................. 74
5.2.3.1 Head cleaning .................................................................................... 74
5.2.3.2 Ink charge .......................................................................................... 74
5.2.3.3 Refurbishment For DOA ................................................................... 75
5.2.3.4 Waste ink pad counter ....................................................................... 75
5.2.3.5 EEPROM data copy .......................................................................... 76
5.2.4 Check Pattern print ................................................................................... 77
5.2.4.1 Normal Paper Pattern ........................................................................ 77
5.2.4.2 Photo Quality Paper Pattern .............................................................. 77
5.2.4.3 Nozzle check pattern ......................................................................... 77
5.2.5 Appendix .................................................................................................. 78
5.2.5.1 Save all of EEPROM data ................................................................. 78
5.3 Firmware Uploading ........................................................................................ 79
5.3.1 Firmware Program File ............................................................................. 79
5.3.2 Firmware Update Procedure ..................................................................... 79
5.3.3 Update Error List ...................................................................................... 79
Chapter 6 Maintenance
6.1 Overview ............................................................................................................ 81
6.1.1 Maintenance of the Printer ....................................................................... 81
6.2 Cleaning ............................................................................................................. 81
6.3 Lubrication ........................................................................................................ 82
6.3.1 Designated Lubricant ................................................................................ 82
6.3.2 Lubrication Points of the Scanner ............................................................ 82
6.3.3 Lubrication Points of the Printer .............................................................. 83
Chapter 7 Appendix
7.1 Connectors ........................................................................................................ 87
7.1.1 Connector Assignments ............................................................................ 87
7.2 Circuit Board Component Layout .................................................................. 88
7.3 Electric Circuit Diagrams ................................................................................ 89
7.4 Exploded Diagrams .......................................................................................... 96
7.5 ASP List ........................................................................................................... 103

CHAPTER
1
PRODUCTDESCRIPTION
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EPSON Stylus PHOTO RX600/610, RX620/630 Revision C
Product Description Overview 9
1.1 Overview
This section describes the specifications for the SPC (Scanner, Printer, Copier)
machine “Stylus PHOTO RX600/610, RX620/630”.
1.1.1 Basic Functions
The functions of EPSON Stylus PHOTO RX600/610, RX620/630 are as described
below:
Printer function
High quality and high speed printing, improved durability against lights, water,
gas and rubbing on regular copy paper due to introduction of new dye ink, and has
following features:
Maximum printing resolution: 2880 (H) x 1440 (V) dpi
Six color independent ink cartridge EPSON Stylus PHOTO RX600/610,
RX620/630
BorderFree print on Epson special paper
Low noise
Alarms to prevent paper jam when stacker (output tray) is closed
Print head
Black Ink : 90 nozzles
Color Ink : 90 nozzles x 5 colors (C, M, Y, LC, LM)
Scanner function
The image can be easily acquired in the PC. Other features are as follows:
The maximum optical resolution :2400 x 4800dpi
Reading gradations :48bit (Input/Output)
Standalone Copier function
The latest six color dye type printer engine allows to make photo quality copies on
the Epson special coated paper.
Other features are as follows:
Print Function with Memory Card
Stylus PHOTO RX600/610, RX620/630 is equipped with built-in memory card
slot, and print function with memory card at standalone.
Other features are as follows:
Supports index sheet print that allows you to simply select images by marking
on index sheet. Simplifies image selection by scanning or checking the
marking sheet.
Basic Print which prints only 4x6 / 10x15.
The custom print function which can perform edit printing as follows:
•The select print function in which the number of copies can be set for every
ID
•The function which can print all ID
•The function which can print the range
Equipped with the “ZOOM print” function which carries out zoom of the
favorite picture and prints it.
CHECK
P O I N T
Ink cartridge is not compatible to previous model, Stylus CX3100/
3200.
Refer to “ 1.3 Ink Cartridge (p12)”.
Copy Mode Margin Feature
Standard copy 3mm Normal copy
BorderFree copy N/A Full copy with no margin
Small margin copy 1.5mm Margins are 1.5 mm in four sides
Repeat copy -Copies original size on multiple places in the media
(4/8/16).
Poster copy -Divides the original image into 4/8/16, and produces
poster size copy (A4 and Letter size only).
2-up/4 up copy -Reduces 2 pages/4 pages of the original image to
single page.
Mirror copy - Flips over the original left to right.
Copy Photo (EMC) /
Multi-Photo(EAI) -This copy layout makes "photo reprint" type copies of photo originals in 4x6/10x15 print sizes.
Wallet Photo Copy - Print images are arranged and printed as wallet-size (3.5" x 2.5") images in a grid on A4 or Letter paper.
This mode is available for the EAI region only.

EPSON Stylus PHOTO RX600/610, RX620/630 Revision C
Product Description Common 10
Compatible to various memory cards.
Note “*”: Adapterrequired
1.1.2 Main deference between RX600/610 and RX620/630
Operation panel design
High quality LCD
1.2 Common
The specifications described below are common to the scanner and printer.
1.2.1 Electrical Specifications
Note 1: The product is Energy Star compliant.
2: The holding current to the motors is reduced when the printer has stayed in non-
operation status for 5 minutes.
3: The Scanner lamp is turned off when the Scanner has stayed in nonoperation status for
15 minutes.
Compact Flash / Microdrive
Smart Media / xD-Picture Card
Memory Stick / MagicGate Memory Stick / Memory Stick PRO /
Memory Stick Duo* / SD Memory Card / miniSD Card* /MultiMediaCard Table 1-1. AC Input
100V model 120V model 220-240V model
Rated voltage (ACV) 100 120 220-240
Input voltage (ACV) 90-110 108-132 198-264
Rated current (A) 0.8A 0.8A 0.4A
Rated frequency range
(Hz) 50 ~ 60
Input frequency range
(Hz) 49.5 ~ 60.5
Power consumption
(W)
Approx. 23 W
(Standalone copying, ISO10561
Letter Patter, Plain Paper - Text)
Approx. 24 W
(Standalone copying, ISO10561
Letter Patter, Plain Paper - Text)
Approx. 6 W (Sleep Mode) Approx. 6.5 W (Sleep Mode)
Approx. 0.3 W
(Powered Off
Mode)
Approx. 0.4 W
(Powered Off
Mode)
Approx. 0.5 W
(Powered Off Mode)

EPSON Stylus PHOTO RX600/610, RX620/630 Revision C
Product Description Common 11
1.2.2 Interface
USB 2.0 compatible. See Table 1-2. for details.
1.2.3 Conformance with Safety and EMC Standards
Conformance with EMC standard
1.2.4 Environmental Conditions
Note “*1”: 1 month at 40 °C or 120 hours at 60 °C
“*2”: 1 month at 40 °C
“*3”: In the shipment container.
1.2.5 Reliability
5 years or following printable media volume whichever comes first:
Total print volume
Black Ink : 50,000 pages (A4)§
Color Ink : 20,000 pages (A4)§
Print head life
30 million dots/nozzle
Scan head
MCBF 30,000 cycles
1.2.6 Acoustic Noise
Level
Max 45 dB (approx.) (according to ISO7779 when for copying)
Table 1-2.
Item Descriptions
Standard “Universal Serial Bus Specifications Revision 2.0”
“Universal Serial Bus Device Class Definition for Printing Devices
Version 1.1” (printer unit)
“Universal Serial Bus Mass Storage Class Bulk-Only Transport
Revision 1.0”(storage unit)
Data transfer speed 480Mbps (High Speed Device)
Data format NRZI
Conforming connecter USB Series B
Table 1-3.
120 V version 220-240 V version
Safety • UL60950
• CSA22.2 No.60950 • EN 60950
EMI • FCC part15 subpart B class B
• CSA C108.8 class B • EN 55022(CISPR Pub.22) class B • AS/NZS 3548 class B
Table 1-4.
Operating Storage Transporting*3
Temperature 10 ~ 35 °C*1 - 20°C ~ 40°C*2 -20°C ~ 60 °C*1
Humidity (no condensation) 20 ~ 80%, RH 20 ~ 85% 5 ~ 85%, RH
Resistance to physical shock 1 G, 1 x 10-3 second 2 G, 2 x 10-3 second
Resistance to physical
vibration 0.15G 0.50G

EPSON Stylus PHOTO RX600/610, RX620/630 Revision C
Product Description Ink Cartridge 12
1.2.7 Weight and Overall Dimensions
Weight:
10.0 kg (Excluding ink cartridge)
Overall Dimensions (mm):
455.9 x 439.1 x 256.0 (Width x Depth x Height)
NOTE:
Neither the rubber feet nor the paper tray is included.
Figure 1-1. External Appearance for RX600/610
1.3 Ink Cartridge
Type: Special ink cartridge
Suggested effective period: Period described on the product package,
or six months after opening.
Storage temperature
Storage: -20°C ~ 40°C (Within a month at 40°C)
Packing storage: -30°C ~ 40°C (Within a month at 40°C)
Transit: -30°C ~ 50°C (Within 120 hours at 60°C and
within a month at 40°C)
Other
Note “*1”: 400pages/A4 (360dpi,5%duty each color)
“*2”: This value reflects continuous print *3 after replacing the ink cartridge. Depending
on numbers of cleaning, this value become smaller. The first ink cartridge installed
in this product will be used to bring it to printable condition.
“*3”: Continuous print: Continuous printing without stopping action due to power ON/
OFF or head cleaning.
Note : Ink in the cartridge freezes if it is left in the temperature below -16°C. Once ink
is frozen, it takes approx. 3 hours to return to be usable condition if ink is in -
20°C and moved to in 25°C.
Table 1-5.
Color Model Number Dimensions (mm)
(W x D x H) Life*1
Europe,
EAI Asia/Latin
Black Ink Cartridge T0481 T0491
12.7 x 73.46 x 55.25
*2
Color Ink
Cartridge
Cyan T0482 T0492 *2
Magenta T0483 T0493 *2
Yellow T0484 T0494 *2
Light Cyan T0485 T0495 *2
Light Magenta T0486 T0496 *2

CHAPTER
2
OPERATINGPRINCIPLES
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EPSON Stylus PHOTO RX600/610, RX620/630 Revision C
Operating Principles Overview 14
2.1 Overview
This Chapter describes the operating principles of the mechanism and electric circuits
of EPSON Stylus PHOTO RX600/610, RX620/630.
Stylus PHOTO RX600/610, RX620/630 mainly, basically consists of a printer and a
scanner. The mechanism can be divided into the printer and the scanner. The electric
circuit includes the Main Board circuit, Power Supply Board circuit, scanner carriage
circuit and control panel circuit.
2.2 Mechanism
2.2.1 Printer Mechanism
The printer mechanism comprises the Carriage carrying the print head, the CR Motor
for driving the carriage in the lateral direction in the printing range, the Capping Unit
for preventing the print head from drying, the PF Motor for transporting the paper, the
ASF Unit for loading paper by the driving force from the PF motor, and the Paper Eject
Unit for ejecting the paper after printing.
Figure 2-1. Outline of Printer Mechanism
PF Motor
ASF Mechanism
CR Motor
Paper Eject Unit
Print Head
Capping Unit

EPSON Stylus PHOTO RX600/610, RX620/630 Revision C
Operating Principles Mechanism 15
2.2.1.1 Carriage Motor Specification
2.2.1.2 Printerhead Specification
Black Ink : 90 nozzles
Color Ink : 90 nozzles x 5 colors (C, M, Y, LC, LM)
2.2.1.3 Paper Feeding Motor Specification
2.2.1.4 PW Detector Specification
Stylus PHOTO RX600/610, RX620/630 has newly employed a PW (Paper Width)
sensor that is described in detail below.
Purpose of Detection
•To prevent printing with no characters on cut sheet.
Detector Specification
Switching Mode
Note: Paper head signals shall be converted by means of 8-bit A/D conversion.
PW Detector Control
There are two controlling methods using PW detector as follows:
Control of preventing print with no characters
Before start of print (immediately after paper head feed is complete) or during
print, this control detects the existence of paper with PW detector, driving CR
and PF motors and prevents print with no characters on paper sent to paper
guide, which applies to only right and left edges of paper.
Control of restriction to run-off
This control detect paper edges with PW detector at the time of printing with
no margin, and restrict the printing run-off quantity. It detects 4 edges when
no margins are set for 4 sides of paper. For each mode, run-off area thin-out
control is set that further compensates for run-off mask area at the time of
printing with no characters.
Table 2-1. CR Motor Specification
Item Specifications
Type DC Motor with brush
Voltage + 42V (DC) ±5% (printable voltage to the driver)
Resistance 22.65 Ω±10%
Inductance 17.3 mH ±25%
Drive PWM system, rated current chopping system
Drive IC A6615
Table 2-2. PF Motor Specification
Item Specifications
Type 4-phase 200-pole HB stepping motor
Voltage + 42V (DC) ±5% (printable voltage to the driver)
Resistance 30 Ω±10%
Inductance 3.5 mH ±20%
Drive Bipolar driving
Drive IC A6615
Item Specification
Detecting method Photoelectric conversion method (reflection type)
(SHARP GP2S40V)
Open-collector
electric characteristic
Collector withstand-voltage: not more than 30V
Sinc current : not more than 0.2mA
Driving voltage : 3.3 ± 5%
Detected State Switching Mode Detector Output
Paper existent Open Voltage low
Paper non-existent Close Voltage high

EPSON Stylus PHOTO RX600/610, RX620/630 Revision C
Operating Principles Mechanism 16
Controlling of each detection
Figure 2-2. PW Detector Installing Position
2.2.2 Scanner Mechanism
The scanner consists of the Scanner Carriage Unit comprising the CCD for capturing
images and the light source for illuminating the document, the Scanner Motor and
Timing Belt for moving the scanner carriage unit along the document surface, and the
Scan HP Detector for detecting the position of the scanner carriage unit.
Figure 2-3. Scanner Mechanism
Table 2-3.
Detection Type Detection
Direction CR Drive at Time of Detection PF Drive at Time of Detection Detection Timing
• Control of
preventing print
with no characters
• Control of
restriction to run-
off
CR
direction
Interrupt control
(PID/loadpositioning
control)
At stop or during
drive
• After paper head
feed or during
print
• Acquisition of
position with
factory
command at
time of
adjustment
PF
direction Stop At time of interrupt
control (PID or BS
control)
PW detector
Printhead
(Carriage bottom face)
Scanner Carriage Unit
Scanner Motor
Scanner HP Detector
Document

EPSON Stylus PHOTO RX600/610, RX620/630 Revision C
Operating Principles Electric Circuit 17
2.3 Electric Circuit
The electric circuit boards of Stylus PHOTO RX600/610, RX620/630 are as follows:
C543MAIN Board (main circuit board)
C543PSB Board / C543PSE Board (power supply circuit board)
CCD circuit board (Scanner circuit board)
Panel circuit board
Figure 2-4. Electric Circuit Block

EPSON Stylus PHOTO RX600/610, RX620/630 Revision C
Operating Principles Electric Circuit 18
2.3.1 C543 Main Circuit Board
2.3.1.1 Feature
USB 2.0 with multi-end points allows high speed SPC without HUB
SOC with printer control, scanner control, PT control, CPU SuperMacro
1CPU (NA85E2C by NEC) controls printer, scanner and PT unit
256Mbit*16 SDRAM (2 units)
A6615 drives DC x 2 and DC x 2 with 1Chip to motor driver
SOC obtains wider band ranges by setting action frequency of local SDRAM
to 96MHz
Copy function allows faster process with SOC to scan, and to generate 2-
values, microwave, image buffer instead of going through CPU bus.
Equipped with a color LCD (2.5-inch DTFD liquid crystal display) as
standard.
Low current allows LCD to reduce power consumption in low power mode as
follows:
•Lowering power supply voltage
•Shutting off optical current for optical sensor
•SLEEP mode for motor drive
•Saving the power for printer with no exciting motor
•Saving the power for scanner by turning off the lamp
•Equipped with printer tray open sensor
Table 2-4.
Main Element location Function
Built-in CPU core
SOC
(E01A49B*) IC6
• Built-in NA85E2C core
• Built-in iLB RAM 12Kbyte, Built-in dLB RAM 4Kbyte
Built-in iCACHE 8Kbyte, Built-in dCACHE 8Kbyte
• Action frequency
CPU core :192MHz(SSCG)
NPB macro (UART, TimerC/D, Prescaler) :48MHz
User logic (scanner/photo print) :48MHz (SSCG)
User logic (printer) :48MHz
Local SDRAM :96MHz(SSCG)
External bus clock :64MHz(SSCG)
• Power supply voltage : internal 1.5 V, external 3.3 V
FLASH ROM
(MBM29PL64LM) IC2 •Firmware
• 64MB, 16bit bus, 48pin, 3.3V drive
SDRAM
(K4S561632) • System Memory (for CPU) • 256 Mbit, 16 bit bus, 54pin, 133MHz (CL=2) minimum
SDRAM
(K4S561632) • Work memory for copy function (image processing)
• 256 Mbit, 16 bit bus, 54pin, 133MHz (CL=2) minimum
Card ASIC
(E09A49B*) IC14 • Bus clock : 64MHz , internal clock : 48MHz
• 3.3V Single power supply
CF Socket Power
Controller
(TPS2041A) IC15 • 8 pin PSOP
• Power control 1CH with current limit
RTC circuit
(RTC9822) IC1
Multiple IC
• EEPROM ( Default value, store various parameters)
• RESET
•TIMER
Motor drive circuit
(A6615) IC12 • CR motor, PF motor, scanner motor drive circuit
• Drive motor: 42V ±5%
Head drive circuit
(E09A41RA) IC11 • Head drive control (control port for SOC)

CHAPTER
3
TROUBLESHOOTING
Download Service Manual And Resetter Printer at http://printer1.blogspot.com

EPSON Stylus PHOTO RX600/610, RX620/630 Revision C
Troubleshooting Overview 20
3.1 Overview
With this printer, almost all troubles can be coped with by using “EPSON Status
Monitor 3” installed on the host personal computer.
Once an error occurs, the “EPSON Status Monitor 3” will appear as a pop-up window
on the screen of the host PC. It will show details of how to cope with the trouble. In
almost all cases, the user can recover the printer from the error, provided that the user
follows the instructions indicated on the pop-up window.
In addition, the User's Manual for EPSON Stylus PHOTO RX600/610, RX620/630
describes detailed steps to be taken for recovery from typical errors.
3.1.1 Specified Tools
This printer does not require any specified tools for troubleshooting.
3.1.2 Preliminary Checks
Before starting troubleshooting, be sure to verify that the following conditions are all
met:
The power supply voltage must be within the specification limits. (Measure the
voltage at the wall socket.)
The POWER CORD must be free from damage, short circuit or breakage, or
miswiring in the POWER CORD.
The printer must be grounded properly.
The printer should not be located in a place where it can be exposed to too high or
low temperature, too high or low humidity, or abrupt temperature change.
The printer should not be located near waterworks, near humidifiers, near heaters
or near flames, in a dusty atmosphere or in a place where the printer can be
exposed to blast from an air conditioner.
The printer should not be located in a place where volatile or inflammable gases
are produced.
The printer should not be located in a place where it can be exposed to direct rays
of the sun.
The printer must be located in a well-ventilated place.
The printer must be placed on a strong and steady level table (without an
inclination larger than 5 degrees).
The paper used must conform to the specification.
There is no error in handling of the printer.
Check the inside of the printer, and remove foreign matters, if any, such as paper
clips, staples, bits of paper, paper dust or toner.
Clean the inside of the printer and the rubber rolls.