Epson c87, c88, d88 Diagram
SERVICE MANUAL
Color Inkjet Printer
EPSON Stylus C87/C88/D88
SEIJ05-002
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 © 2005 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. 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.
6. WHEN USING COMPRESSED AIR PRODUCTS; SUCH AS AIR DUSTER, FOR CLEANING DURING REPAIR AND MAINTENANCE, THE USE OF SUCH
PRODUCTS CONTAINING FLAMMABLE GAS IS PROHIBITED.
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 Epsonapproved lubricants and adhesives required for servicing the product.
APPENDIX Provides the following additional information for reference:
• Exploded Diagram
• Parts List
• Circuit Diagrams
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.
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
C H E C K
P O I N T
W A R N I N G
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.
Revision Status
Revision Date of Issue Description
A August 1 , 2005 First Release
EPSON Stylus C87/C88/D88 Revision A
Contents
Chapter 1 PRODUCT DESCRIPTION
1.1 Features.................................................................................................................. 9
1.2 Specifications ...................................................................................................... 10
1.2.1 Physical Specification................................................................................. 10
1.2.2 Printing Specification ................................................................................. 10
1.2.3 Paper Feeding ............................................................................................. 11
1.2.4 Input Data Buffer........................................................................................ 11
1.2.5 Electric Specification.................................................................................. 11
1.2.6 Reliability ................................................................................................... 12
1.2.7 Acoustic Noise............................................................................................ 12
1.2.8 Black Ink Save Mode.................................................................................. 13
1.3 Operator Controls ................................................................................................ 14
1.3.1 Operation Switch ........................................................................................ 14
1.3.2 Panel Functions........................................................................................... 14
1.3.3 Printer Condition and LED Status .............................................................. 15
1.3.4 Duplex Printing........................................................................................... 15
1.3.5 Errors .......................................................................................................... 15
1.4 Paper .................................................................................................................... 16
1.4.1 Paper Support.............................................................................................. 16
1.5 Ink Cartridge........................................................................................................ 21
1.5.1 Ink Cartridge Specification......................................................................... 21
Chapter 2 OPERATING PRINCIPLES
Chapter 3 TROUBLESHOOTING
3.1 Overview ............................................................................................................. 30
3.1.1 Specified Tools ........................................................................................... 30
3.1.2 Preliminary Checks..................................................................................... 30
3.2 Troubleshooting With LED Error Indications.................................................... 31
3.2.1 Fatal Error................................................................................................... 33
3.3 Troubleshooting for Motors and Sensors ............................................................ 35
Chapter 4 DISASSEMBLY/ASSEMBLY
4.1 Overview ............................................................................................................. 37
4.1.1 Precautions.................................................................................................. 37
4.1.2 Tools ........................................................................................................... 37
4.1.3 Screws (T.B.D)........................................................................................... 38
4.1.4 Work Completion Check ............................................................................ 39
4.2 Caution regarding Assembling/Disassembling of the Printer Mechanism,
and How to Ensure of Quality on Re-assembled Product................................... 40
4.3 Dissasembly Procedures...................................................................................... 42
4.3.1 Removing Housings ................................................................................... 44
4.3.2 Removing Boards ....................................................................................... 57
4.3.3 Disassembling Printer Mechanism ............................................................. 62
Chapter 5 ADJUSTMENT
2.1 Overview ............................................................................................................. 24
2.2 Printer Mechanism............................................................................................... 24
2.2.1 Printhead Specifications ............................................................................. 25
2.2.2 Carriage Mechanism................................................................................... 25
2.2.3 Paper Loading/Feeding Mechanism ........................................................... 26
2.2.4 Ink System Mechanism............................................................................... 27
2.3 Electrical Circuit Operating Principles................................................................ 27
2.3.1 C528 PSH Board......................................................................................... 28
2.3.2 C528 Main Board ....................................................................................... 28
5.1 Adjustment Items and Overview......................................................................... 81
5.1.1 Servicing Adjustment Item List.................................................................. 81
5.1.2 Replacement Part-Based Adjustment Priorities ......................................... 84
5.2 Adjustment by Using Adjustment Program ........................................................ 85
5.2.1 Market ID Setting ....................................................................................... 85
5.2.2 USB ID Input.............................................................................................. 85
5.2.3 Head ID Input ............................................................................................. 85
5.2.4 Head Angular Adjustment.......................................................................... 86
5.2.5 Bi-D Adjustment......................................................................................... 86
6
EPSON Stylus C87/C88/D88 Revision A
5.2.6 PF Adjustment ............................................................................................ 87
5.2.7 PW Sensor adjustment................................................................................ 87
5.2.8 First Dot Adjustment .................................................................................. 88
5.2.9 Top Margin Adjustment ............................................................................. 88
5.2.10 Offset input for CR Motor Calorific Limitation ....................................... 89
5.2.11 A4 Normal Paper print.............................................................................. 89
5.2.12 A4 Photo Quality Inkjet Paper Print........................................................ 90
5.3 Adjustment Except Adjustment Program ............................................................ 91
5.3.1 CR Timing Belt Tension adjustment .......................................................... 91
Chapter 6 MAINTENANCE
6.1 Overview ............................................................................................................. 93
6.1.1 Cleaning...................................................................................................... 93
6.1.2 Service Maintenance................................................................................... 93
6.1.3 Lubrication.................................................................................................. 95
Chapter 7 APPENDIX
7.1 Exploded Diagram............................................................................................... 99
7.2 Parts List............................................................................................................ 105
7.3 Circuit Diagram ................................................................................................. 106
7
PRODUCT DESCRIPTION
CHAPTER
1
EPSON Stylus C87/C88/D88 Revision A
1.1 Features
The major features of EPSON Stylus C87/C88/D88 are:
High color print quality
4-color pigment ink installed
High quality printing on plain papers
2880 (H) x 1440 (V) dpi printing (Max resolution)
Supports two types of I/F
Bidirectional parallel I/F
USB
Windows/Macintosh exclusive
Built-in auto sheet feeder (ASF)
Comes equipped with the ASF that supports from postcard-sized papers to
A4-sized papers
CSIC compatible fully independent ink cartridges
Borderfree printing for all sides
Prevents printing on platen with the optical sensor
Cancel print jobs function
Reduced noise during paper feeding
Figure 1-1. Product Appearance
PRODUCT DESCRIPTION Features 9
EPSON Stylus C87/C88/D88 Revision A
1.2 Specifications
This section covers specifications of the printer.
1.2.1 Physical Specification
Weight: 4.2 kg (without the ink cartridges)
Dimension
Storage: 460 mm (W) x 242 mm (D) x 191.2 mm (H)
Printing: 460 mm (W) x 437 mm (D) x 309 mm (H)
1.2.2 Printing Specification
Print method
On demand ink jet
Nozzle configuration
monochrome: 180 nozzles
color: 59 nozzles x 3 (Cyan, Magenta, Yellow)
Print direction
Bi-direction with logic seeking
Print speed & Printable columns
Table 1-1. Character Mode
Character Quality Character Pitch Printable Columns CR Speed
High quality 10 CPI (Pitch) 80 digits
622.3 mm/s
(245 CPS)
Table 1-2. Raster Graphics Mode
Horizontal
resolution
360 dpi
720 dpi
1440 dpi
Printable area
209.8 mm
(8.26 inch)
209.8 mm
(8.26 inch)
209.8 mm
(8.26 inch)
Available
dot
2976
5952
11904
Control Code
ESC/P2 expanded raster graphics code
EPSON Remote command
Character tables
none (ASCII 20H to 7FH code support)
Internal fonts
Alphanumeric characters: Courier 10 CPI
Dot size CR speed
Eco 863.6 mm/s (340 CPS)
VSD1 622.3 mm/s (245 CPS)
VSD2
(Color)
VSD4 571.5 mm/s (225 CPS)
VSD2 622.3 mm/s (245 CPS)
VSD2'
(Black)
VSD3’
(Color)
VSD3
VSD3’
(Black)
622.3 mm/s (245 CPS)
622.3 mm/s (245 CPS)
736.6 mm/s (190 CPS)
736.6 mm/s (190 CPS)
736.6 mm/s (190 CPS)
PRODUCT DESCRIPTION Specifications 10
EPSON Stylus C87/C88/D88 Revision A
1.2.3 Paper Feeding
Paper feeding method
Friction feed with ASF
PF interval
Programmable in 0.0175 mm (1/1440 inch)
Paper loading method
Friction feed
Feed speed
196.39 mm/sec (19.05 mm (0.75 inch) feed) (T.B.D)
352.8 mm/sec (High speed /Continuous feed) (T.B.D)
1.2.4 Input Data Buffer
Input buffer size: 128 KB
1.2.5 Electric Specification
Rated voltage: AC100 V - 240 V
Input voltage range: AC90 - 264 V
Safety approvals
UPS version:
Safety standards : UL1950
CSA C22.2 No.950
: EN 60950(VDE)
EMI : FCC part15 subpart B class B
CSA C108.8 class B
: EN 55022(CISPR Pub.22) class B
: AS/NZS 3548 class B
CE Marking
UPS version:
Low Voltage Directive 73/23/EEC : EN60950
EMC Directive 89/336/EEC : EN55022 Class B
EN61000-3-2
EN61000-3-3
EN55024
Rated frequency range: 50 - 60 Hz
Input frequency range: 49.5 - 60.5 Hz
Rated current: 0.4 A - 0.2 A
Power consumption: ISO10561 Letter Pattern: 19W
Sleep Mode: 4.5 W
Power Off Mode: 0.8 W
Dielectric resistance: 10 MΩ or more
(between AC line and chassis at DC 500 V)
Dielectric strength: AC 1500 V rms. 1 second
(between AC line and chassis)
PRODUCT DESCRIPTION Specifications 11
EPSON Stylus C87/C88/D88 Revision A
Environmental Condition
Table 1-3. Environmental Condition
Operating Non-operating
Temperature
Humidity (should be no
condensation)
Resistance to shock
(X, Y, and Z directions)
Resistance to vibration
(X, Y, and Z directions)
Note *1: One month at 40°C and 120 hours at 60°C
*2: Packed in the shipment container
*3: Under the following conditions
*1
Humidity(%)
10~35 °C
20~80 % RH 5~85 % RH ---
1 G, within 1 ms 2 G, within 2 ms ---
90
80
70
60
50
40
30
20
*3
0.15 G 0.50 G ---
-20~60 °C
*2
1 month at 40 °C
120 hours at 60 °C
C A U T I O N
Remarks
1.2.6 Reliability
Total print volume: 50,000 pages (A4, Letter) or five years,
Print Head Life: Three billion shots (per nozzle) or five years,
1.2.7 Acoustic Noise
Level: Approx. 42 db (A)
Printhead must be capped during storage.
When transporting the printer, make sure that the printhead is
capped and the ink cartridges are installed in the printer.
If the printhead is not capped when the printer is turned off,
turn the printer on with the ink cartridges installed, cap the
printhead, and turn the power off.
Ink inside the ink cartridges freezes if it is left to stand at
temperature of -4°C or less. If this is the case, allow the ink to
stand for about three hours at 25°C temperature.
whichever comes first.
whichever comes first.
27
10
20
35
30
40
Temperature (°C)
Figure 1-2. Temperature/Humidity Range
PRODUCT DESCRIPTION Specifications 12
EPSON Stylus C87/C88/D88 Revision A
1.2.8 Black Ink Save Mode
“Black ink save mode” allows you to print images with color ink only when the
remaining amount of black ink is low. This mode can be selected when the remaining
amount of color ink is sufficient since black areas of the images are printed with a
mixture of other colors.
Supported OS: Windows NT4.0, 95, 98, ME, 2000, XP
Printing mode: Plain Paper & Text Mode (360 dpi)
Operating procedure
1. User carries out printing from an application.
2. The printer driver checks both the printing mode and the amount of remaining ink,
and displays the specific window if the conditions described below are all
satisfied.
Selected printing mode supports black ink save mode.
Remaining amount of black ink is less than 5 %, or the status of the black ink
is “ink low”.
Remaining amount of all the color ink is more than 10 %, or the status of all
the color ink is NOT “ink low”.
Starts printing in black ink save mode.
Starts printing in a
normal manner.
Starts printing in a
normal manner.
This window will not be
displayed until the black
ink cartridges is replaced.
Figure 1-3. Black Ink Save Mode Window
PRODUCT DESCRIPTION Specifications 13
EPSON Stylus C87/C88/D88 Revision A
1.3 Operator Controls
1.3.1 Operation Switch
Operation switch is located on top center of the main unit.
1.3.1.1 Switches
There are three non-lock type push switches and three LEDs.
Ink switch
Ink LED
Paper switch
Paper LED
Power switch
Power LED
1.3.2 Panel Functions
Table 1-4. Panel Functions
Switch Function
Paper
Ink
Ink
(Holding down for three seconds)
Table 1-5. Panel functions with power on
Switch Pressing with Power On function
Paper + Power Starts status printings.
• Loads or ejects paper.
• Restarts when paper jam occurred.
• In the condition of printing, cancel the print job.
• Starts the ink cartridge change sequence. Moves the
carriage to cartridge change position.
• In the condition of ‘Ink Low’, ‘Ink Out’ or ‘No Ink
Cartridge’, moves the carriage to the ink check
position.
• When the carriage is on the ink check position, moves
carriage to next ink check position or cartridge change
position.
• When carriage is on the ink change position, returns
carriage from ink cartridge change position.
• Starts the cleaning of head.
• In the condition of 'Ink Low', 'Ink Out' or 'No Ink
Cartridge', starts the ink cartridge change sequence.
*
Figure 1-4. Control Panel
1.3.1.2 Indicators
Power LED [Green]
Lights when the power switch is “ON” and AC power is supplied.
Flashes when data is processed or ink system is operating.
Note *: Holding down the [Paper] switch, press [Power].
Table 1-6. Panel functions with power off
Switch Pressing with Power Off function
Ink + Power
Note *: Holding down the [Power] switch, press [Ink] for about seven seconds.
*
Compulsory power off.
*
Paper LED [Red]
Lights during the paper out/multi-feed condition, and flashes during the paper jam
condition.
Ink LED [Red]
Lights during no ink condition, and flashes during ink low condition.
PRODUCT DESCRIPTION Operator Controls 14
EPSON Stylus C87/C88/D88 Revision A
1.3.3 Printer Condition and LED Status
Table 1-7. Printer Condition and LED Status
Printer status
Power on On -- -- 11
Ink level low -- -- Flashes 10
Data processing Flashes -- -- 9
No ink cartridge or ink end -- -- On 8
CSIC Error -- -- On 8
Ink sequence Flashes -- -- 7
Ink cartridge change mode Flashes -- -- 6
Paper out -- On -- 5
Multi-feed --- On --- 5
Paper jam condition -- Flashes -- 4
Maintenance request
(Waste ink counter overflow)
Fatal error Off Flashes on
Power off Flashes on
Reset request On On On --
Note *: “---” indicates that the indicator status varies according to the printer condition at
that time.
Power LED Paper LED Ink LED
Off
high speed
Indicators
Flashes
alternately
high speed
Off Off 1
Flashes
alternately
Flashes on
high speed
Priority
3
2
1.3.5 Errors
Errors that may occur with this printer are described below.
Table 1-8. Error Status
Error Description
Ink out The predetermined level of ink is used.
Paper out The printer fails to load a sheet.
Occurs under the following conditions:
• Papers could not be ejected after the specified number of times
Paper jam
Multi-feed Multiple papers are fed to the printer.
No ink-cartridge /
Cartridge Error
Maintenance request Total quantity of waste ink has reached the specified level.
Fatal errors Non-recoverable error such as carriage control error.
of paper feed operation.
• Papers could not be ejected by FF command or pressing the
Paper switch.
Occurs under the following conditions:
• Ink cartridge is not installed or removed.
• CSIC information could not be read/written normally.
1.3.4 Duplex Printing
Select the duplex printing mode from the printer driver, and follow the steps below to
perform the duplex printing.
1. Print all the odd pages.
2. Turn over the ejected pages on the paper eject tray, and load them on the ASF.
3. Print all the even pages.
PRODUCT DESCRIPTION Operator Controls 15
EPSON Stylus C87/C88/D88 Revision A
1.4 Paper
1.4.1 Paper Support
Cut sheets
Dimensions
Paper size
A4 210 297
A5 148 210
A6 105 148
Half Letter
B5 182 257
Letter
Legal
User
defined
C A U T I O N
Width
(mm)
139.7
(5.5”)
215.9
(8.5”)
215.9
(8.5”)
50.8-329
It is necessary that there is no winkle, nap, tear, fold and so on
in the form.
The curve of form must be five mm or below.
The printer only accepts A4-sized papers for borderfree
printing.
Table 1-9. Cut sheets
Length
(mm)
215.9
(8.5”)
279.4
(11”)
355.6
(14”)
127-
1117.6
Thickness
(mm)
0.08-0.11
Weight
2
(g/m
)
64-90
(17-24(lb))
Quality
Common paper
Recycled paper
Envelopes
Table 1-10. Envelopes
Paper type
*2
#10
*2
DL
*2
C6
Note *1: Borderfree printing is not supported for envelops.
*2: There is flap in the long side part, and it is fold down.
C A U T I O N
Use paper under normal conditions.
Dimensions (mm)
Width Length
104.8 241.3
110 220
(20-24 (lb))
114 162
• Temperature 15 to 25°C (59 to 77°F)
• Humidity 40 to 60% RH
It is necessary that there is no winkle, nap, tear, fold and so on
in the form.
The curve and swell of the form must be three mm or below.
Don't use the adhesive envelope.
Don't use sleeve insert envelope and cellophane window
envelope.
As for double-flap envelope, if the envelope is damaged or bent
during printing, load the envelope with its flap facing in the
opposite direction. (Feeding direction should be changed as well
from the printer driver.)
If the printed images are skewed or misaligned from the proper
position, fold four sides of the envelope tightly.
If multi-feed occurs, press the [Paper] switch to feed the
envelope before starting printing again.
*1
Weight
(g/m
75-90
2
)
Quality
Bond paper
PPC paper
PRODUCT DESCRIPTION Paper 16
EPSON Stylus C87/C88/D88 Revision A
Exclusive papers
Quality: EPSON Exclusive paper
Table 1-11. Exclusive papers
Dimensions
Item
Premium Ink Jet Plain Paper A4 210 297 0.11 80
Bright White Ink Jet Paper A4 210 297 0.13 92.5
Photo Paper
Premium Glossy Photo Paper
Premium Semigloss Photo Paper
Matte Paper-Heavyweight
Double-sided Matte Paper
Economy Photo Paper A4 210 297 0.23 188
Photo Quality Ink Jet paper
Glossy Photo Paper
Premium Glossy Photo Paper (RC-X) 4" x 6" 101.6 152.4 0.25 238
Ultra Glossy Photo Paper
Ultra Premium Glossy Photo Paper
*1
*2
Size
A4 210 297
4" x 6" 101.6 152.4
Letter 215.9 279.4
A4 210 297
8" x 10" 203.2 254
5" x 7" 127 178
4" x 6" 101.6 152.4
3R 89 127
Letter 215.9 279.4
4" x 6" 101.6 152.4
Letter 215.9 279.4
A4 210 297
Letter 215.9 279.4
A4 210 297
Letter 215.9 279.4
A4 210 297
Letter 215.9 279.4
4" x 6" 101.6 152.4
Letter 215.9 279.4
A4 210 297
8" x 10" 203.2 254
*3
5" x 7" 127 178
4" x 6" 101.6 152.4
Width
(mm)
Length
(mm)
Note *1: Borderfree printing is not supported for Photo Quality Ink Jet Paper.
*2: For Stylus C87/D88 only.
*3: For Stylus C88 only.
Thickness
(mm)
0.23 194
0.27 255
0.27 250A4 210 297
0.23 167
0.25 178
0.12 102
0.23 188
0.29 290
Weight
2
(g/m
C A U T I O N
Use paper under normal conditions.
• Temperature 15 to 25°C (59 to 77°F)
• Humidity 40 to 60% RH
It is necessary that there is no winkle, nap, tear, fold and so on
)
in the form.
The curve of form must be five mm or below.
PRODUCT DESCRIPTION Paper 17
EPSON Stylus C87/C88/D88 Revision A
1.4.1.1 Printable Area
Cut sheet (standard printing)
Printable area
For paper width (PW) and paper length (PL), refer to 1.4.1 Paper Support
(p16).
Table 1-12. Applicable Paper/Printing Area
Paper type LM RM TM BM
A4
A5
A6
B5
Letter
Cut Sheet
Legal
User defined
Premium Inkjet Plain Paper
Bright White Ink Jet Paper
Photo Paper
Premium Glossy Photo Paper
Premium Semigloss Photo Paper
Matte Paper-Heavyweight
Double-sided Matte Paper
Economy Photo Paper
Photo Quality Ink Jet Paper
Exclusive papers
Glossy Photo Paper
Premium Glossy Photo Paper (RC-X)
Ultra Glossy Photo Paper
Ultra Premium Glossy Photo Paper
3 mm 3 mm 3 mm
12.5 mm/
*1
3 mm
PW
LM
Printable area
Paper Feed Direction
Figure 1-5. Printable Area for Cut Sheet (Standard Printing)
RM
TM
PL
BM
Note *: It is possible to set the margins for all sides to zero under the special conditions.
Note *1: Bottom margin is expanded to 3 mm when paper dimension is defined by using
command (ESC (S and Remote “SN”), otherwise it is not expanded (12.5 mm).
From a form lower end 3 mm as for 12.5 mm area a printing may scramble.
PRODUCT DESCRIPTION Paper 18
EPSON Stylus C87/C88/D88 Revision A
Envelopes
Printable area
For paper width (PW) and paper length (PL), refer to 1.4.1 Paper Support
(p16).
Table 1-13. Applicable Paper/Printing Area
Paper type LM RM TM BM
#10
3 mm 3 mm 3 mm 20 mmDL
C6
PW
LM
RM
TM
Printable area
PL
Paper Feed Direction
BM
Figure 1-6. Printable Area for Envelopes
PRODUCT DESCRIPTION Paper 19
EPSON Stylus C87/C88/D88 Revision A
Cut sheet (border-free printing)
Printable area
For paper width (PW) and paper length (PL), refer to 1.4.1 Paper Support
(p16).
Table 1-14. Applicable Paper/Printing Area
Paper type Size LO RO TO BO
Photo Paper
Premium Glossy Photo Paper
Premium Semigloss Photo Paper
Matte Paper-Heavyweight
Exclusive papers
Double-sided Matte Paper
Economy Photo Paper A4 2.54 2.54 2.96 4.02
Glossy Photo Paper Letter 2.54 2.54 2.96 4.02
Premium Glossy Photo Paper (RC-X) 4” x 6” 2.54 2.54 1.34 2.54
Ultra Premium Glossy Photo Paper
Ultra Glossy Photo Paper
A4 2.54 2.54 2.96 4.02
4” x 6” 2.54 2.54 1.34 2.54
Letter 2.54 2.54 2.96 4.02
A4 2.54 2.54 2.96 4.02
8” x 10” 2.54 2.54 2.96 4.02
5” x 7” 2.54 2.54 2.96 4.02
4” x 6” 2.54 2.54 1.34 2.54
3R 2.54 2.54 1.34 2.54
Letter 2.54 2.54 2.96 4.02
A4 2.54 2.54 2.96 4.02
4” x 6” 2.54 2.54 1.34 2.54
Letter 2.54 2.54 2.96 4.02
A4 2.54 2.54 2.96 4.02
Letter 2.54 2.54 2.96 4.02
A4 2.54 2.54 2.96 4.02
Letter 2.54 2.54 2.96 4.02
A4 2.54 2.54 2.96 4.02
8” x 10” 2.54 2.54 2.96 4.02
5” x 7” 2.54 2.54 2.96 4.02
4” x 6” 2.54 2.54 1.34 2.54
LO ROPW
Paper size
Paper Feed Direction
Printable area
Figure 1-7. Printable Area for Cut Sheet (Border-free Printing)
TO
PL
BO
PRODUCT DESCRIPTION Paper 20
EPSON Stylus C87/C88/D88 Revision A
1.5 Ink Cartridge
1.5.1 Ink Cartridge Specification
Type/Color: Separate ink cartridges for each color
Table 1-15. Ink Cartridge
Color Size EAI
Black
Cyan
Magenta
Yellow
Ink life:
Black ink cartridge
Print capacity
SS Size --- T0631 T0611
S Size T0601 T0621 T0641
SS Size --- T0632 T0612
S Size T0602 --- ---
SS Size --- T0633 T0613
S Size T0603 --- ---
SS Size --- T0634 T0614
S Size T0604 --- ---
S size: 430 pages /A4 (360 dpi, 5% duty each color)
SS size: 250 pages /A4 (360 dpi, 5% duty each color)
Latin/Asia/
Pac
EUR
Storage temperature
Table 1-16. Storage Temperature
Situation
When transported in individual boxes -30°C ~ 50°C Within 10 days at 50°C
When stored in individual boxes -30°C ~ 40°C Within 1 month at 40°C
When installed in main unit -20°C ~ 40°C Within 1 month at 40°C
Storage
temperature
Limit
Temperature difference
should be less than 45°C
in this period.
Color ink cartridge
Print capacity
S size: 470 pages /A4 (360 dpi, 5% duty each color)
SS size: 280 pages /A4 (360 dpi, 5% duty each color)
Expiration date: Two years
(include both the time interval that the ink cartridge is
unopened and the period after it is unpacked)
PRODUCT DESCRIPTION Ink Cartridge 21
EPSON Stylus C87/C88/D88 Revision A
Dimension: 12.7 mm (W) x 73.46 mm (D) x 55.25 mm (H)
12.7mm
Base View
73.46mm
Figure 1-8. Ink Cartridge
C A U T I O N
Ink cartridge can not re-fill, only ink cartridge is prepared for
article of consumption.
Do not use the ink cartridge which has expired.
Ink will be frozen under -16 °C environment, however it will be
usable after placing it more than three hours at room
temperature.
PRODUCT DESCRIPTION Ink Cartridge 22
OPERATING PRINCIPLES
CHAPTER
2
EPSON Stylus C87/C88/D88 Revision A
2.1 Overview
This section describes the operating principles of the printer mechanism and electrical
circuit boards.
2.2 Printer Mechanism
Printer mechanism of Stylus C87/C88/D88 consists of printhead, carriage mechanism,
paper loading mechanism, paper feeding mechanism, and ink system.
As in the case of conventional models, Stylus C87/C88/D88 has two DC motors; one is
for paper loading/feeding mechanism and the pump mechanism, and the other is for
carriage mechanism.
Papers are fed from the backside and ejected from the front side of the printer.
Paper feeding mechanism, which is also similar to conventional models, feeds papers
using the LD roller and the retard roller.
PF timing belt
PF motor
Star wheel
rollers
PW sensor
Carriage unit
Paper eject
roller
Change lever
Cap unit
PF roller
CR timing belt
CR encoder
sensor
Retard roller
Compression
spring
LD roller
PE sensor
Cam, large
Cam, small
Clutch
Pump unit
CR motor
Figure 2-1. Printer Mechanism Outline
OPERATING PRINCIPLES Overview 24
EPSON Stylus C87/C88/D88 Revision A
2.2.1 Printhead Specifications
This printer employs P-Match type printhead, which enables the product to perform
both the variable dot printing and the economy dot printing.
Nozzle configuration
Monochrome: 180 nozzles
Color: 59 nozzles x 3 rows/color (Cyan, Magenta, Yellow)
The following shows the arrangement of the nozzles and the color arrangement of each
nozzle line when viewed the printhead from behind.
2.258mm
(32/360 inch)
C#60K#180
K#179
Paper Loading Direction
C#59
Cyan: 59nozzles
C#1
M#60
M#59
Magenta: 59nozzles
2.2.2 Carriage Mechanism
Main components of the carriage mechanism are carriage unit (including printhead,
CR encoder sensor, PW sensor), CR motor, timing belt, and CR scale.
2.2.2.1 CR Motor Specifications
Table 2-1. CR Motor Specifications
Item
Type Motor with DC brush
Drive voltage +42 V ± 5% (applied voltage to the driver)
Electric resistance 22.65 Ω ± 10%
Inductance 17.3 mH ± 25%
Drive method PWM, constant-current chopping
Drive IC A6615
Specification
M#1
Color
Y#60
Y#59
Y#3
Y#2
Y#1
Yellow: 59nozzles
0.1411mm
(1/180 inch)
Black
K#3
K#2
K#1
Carriage Moving Direction
Figure 2-2. Nozzle Rear View
NOTE: #60 nozzles of each color are not used for printing, but for flushing.
OPERATING PRINCIPLES Printer Mechanism 25
EPSON Stylus C87/C88/D88 Revision A
2.2.3 Paper Loading/Feeding Mechanism
Paper loading/feeding mechanism consist of switching lever inside the ink system,
holder shaft unit (including clutch mechanism), and ASF unit.
Switching lever and clutch mechanism play an important role in paper loading
mechanism. Refer to 2.2.3.2 Drive Process (p26) for details.
2.2.3.1 PF Motor Specifications (For both ASF and Pump motor)
Table 2-2. PF Motor Specification
Item Specification
Type 4-phase, 200-pole HB stepping motor
Drive voltage +42 V ± 5 % (applied voltage to the driver)
Wire wound
resistance
Inductance 3.5 mH ± 20% (1KH, 1Vrms)
Drive method
Drive IC A6628
2-2 phase, 1-2 phase, W1-2, 2W1-2, 4W1-2 phase constant-current drive
3.0 Ω ± 10% (per one phase at 25 °C)
Bipolar drive
2.2.3.2 Drive Process
1. Drive of the PF motor is transmitted to the paper eject roller and the PF roller via
the PF timing belt, however, it is not transmitted to the LD roller and the retard
roller owing to the clutch of the holder shaft unit.
2. The carriage unit moves to the ASF trigger position once the paper loading
command is received.
3. PF motor is rotated counter clockwise, and the clutch is released by the change
lever.
4. After the clutch is released, the PF motor rotates clockwise. Drive is transmitted to
the LD roller and the paper loading operation begins.
5. During paper loading operation, papers are fed from the ASF unit to inside the
printer by the rotating movement of the two cams of the LD roller.
Cam, large: releases hopper
Cam, small: releases paper back lever
6. Once a sheet of paper is fed, the hopper and the paper back lever bring back rest of
the papers to the position in readiness by the rotating movement of the two cams
mentioned above.
7. When the LD roller is turned a full circle, the change lever release the clutch and
the drive to the LD roller is interfered.
OPERATING PRINCIPLES Printer Mechanism 26
EPSON Stylus C87/C88/D88 Revision A
2.2.4 Ink System Mechanism
The Ink system mechanism consists of pump mechanism and capping mechanism with
wiper mechanism.
2.2.4.1 Pump Unit Mechanism
The PF motor is a source of power to activate the pump unit.
Table 2-3. PF Motor Rotational Direction & Ink System Mechanism
Directions
Counterclockwise
Clockwise
Note *: The PF Motor rotational direction = seen from the left side of the printer.
2.2.4.2 Capping Mechanism
The Capping mechanism covers the printhead with the cap to prevent the nozzle from
increasing viscosity when the printer is in stand-by state or when the printer is off.
*
• Absorbs the ink by the Pump Unit
• Release pump.
Functions
2.3 Electrical Circuit Operating Principles
The electric circuit of the Stylus C87/C88/D88 consists of the following boards.
Main board: C528 MAIN Board
Power supply board: C528 PSB/PSB board
Panel board: C528 PNL board
This section provides block diagram of both C528 MAIN Board and C528 PSB/PSE
Board,C528 PNL board.
C528 PNL Board
Printer Mechanism
CR Motor
PF Motor
C528 Main Board
Head Driver Board
Sensors
CSIC Unit
+42V
C528 PSB/C528 PSE Board
Figure 2-3. Electrical Circuit Block Diagram
PowerOFF
OPERATING PRINCIPLES Electrical Circuit Operating Principles 27
EPSON Stylus C87/C88/D88 Revision A
2.3.1 C528 PSH Board
PSH board of Stylus C87/C88/D88 employs ZC-RRC circuit method, and supplies +42
VDC/+5VDC to the drive line.
AC voltage input from AC inlet first goes through filter circuit that removes high
frequency components and is then converted to DC voltage via the rectifier circuit and
the smoothing circuit.
2.3.2 C528 Main Board
The logic circuit of the C528 Main Board is composed of the following;
Logic line (CPU-ASIC 4 in 1, DRAM and so on)
Motor control/drive circuit (CR Motor, PF Motor)
Head control/drive circuit
Parallel interface control circuit
Sensor circuit
Reset circuit
EEPROM circuit
Table 2-4. C528 MAIN Board Major Components and Primary Functions
IC Location Function
Parallel I/F
Controller
Reset Regulator IC1
DRAM IC8
EEPROM IC4 Makes back up of default setting values and parameters.
Motor Driver IC6
Head Driver IC7 Generates trapezoidal waveform, drives 42 V.
ASIC IC10
Transceiver for centronics IF that responds to IEEE1284 and ECP
IC2
or more, data transfer, and 3.3 V drive.
Reset signal is generated under the following conditions.
• Pressure reduction from 42 V line to 35.8 V.
• Pressure reduction from 5 V line to 4.2 V line.
16 Mbit DRAM with 2 CAS-type page access function.
3.3 V drive.
Drives CR/PF motors, controls PWM by the program timer, drives
42 V.
Drives CPU (H8S/2323 base), internal 8 K bit RAM, internal
MASK ROM, 24 Mhz, 3.3 V drive.
Figure 2-4. C528 Main Board Block Diagram
OPERATING PRINCIPLES Electrical Circuit Operating Principles 28
TROUBLESHOOTING
ICHAPTER
3
EPSON Stylus C87/C88/D88 Revision A
3.1 Overview
This chapter describes how to solve problems.
W A R N I N G
C H E C K
P O I N T
Be careful to avoid electric shocks when checking the electrical
circuit boards (C528 MAIN and C528 PSE boards) while the
power is turned on.
Touching an FET, transistor or heat sink with one hand while
touching a metal part of the mechanism with the other hand
could result in an electric shock, so carefully avoid this.
After initial filling of ink has been repeated several times,
immediate moving or tilting of the printer could result in
leaking of ink that has not been completely absorbed by the
Waste Ink Pad. When initial filling of ink has been repeated
several times, check the ink remaining in the tip of the Waste
Ink Tube and the waste ink not absorbed by the Waste Ink Pad
before moving the printer.
Disassembly and reassembly of parts is often required when
identifying the causes of problems. The parts should be
disassembled and re-assembled correctly while referring to
Chapter 4 “DISASSEMBLY/ASSEMBLY” (p.36) so that the
operation and status of each check item can be correctly
verified.
Some individual part and units may require adjustment once
they are removed or replaced. If removing or replacing parts
which have specific instructions for adjustment included in
Chapter 4 “DISASSEMBLY/ASSEMBLY” (p.36), be sure to
make these adjustments after repairing the problem location.
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 code must be free from damage, short circuit or breakage, or miswiring
in the power code.
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 five 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.
3.1.1 Specified Tools
This printer does not require any specified tools for troubleshooting.
Clean the inside of the printer and the rubber rolls.
TROUBLESHOOTING Overview 30
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