Epson Stylus C41, Stylus C42 series, Stylus C43, Stylus C44, Stylus C41 series Service Manual

®

SERVICE MANUAL

Color Inkjet Printer

Stylus C41/42/43/44 series

SEIJ01011

Notice

V All rights reserved. No p art of t his manual may be reprod uced, stored i n a ret rieval sy stem, or t ransmit ted in any form or by a ny means el ectroni c,

mechanical, photocopying, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.

V 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.

V The contents of this manual are subject to change witho ut notice.
V 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 identif ic ation purp ose only and may be trademarks or registe red tr ademarks of thei r respec-

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

Copyright © 2001 SEIKO EPSON CORPORAT ION.
Imaging & Information Product Division

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.

TPCS Quality Assurance Department

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.DISASSEMBLY / ASSEMBLY

Describes the step-by-step procedures fo r disassembling
and assembling the product.

CHAPTER 3.ADJUSTMENT

Provides Epson-approved methods for adjustment.

CHAPTER 4.MAINTENANCE

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

CHAPTER 5.APPENDIX

Provides the following additional information for
reference:

• 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.

ADJUSTMENT

REQUIRED

CAUTION

CHECK

PO INT

Indicates an operating or maintenance procedure, practice
or condition that is necessary to keep the product’s quality.

Indicates an operating or maintenan ce pr ocedure, practi ce,
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 necessar y to accomplish a task
efficiently. It may also provid e additional information that is
related to a specific subject, or comment on the results
achieved through a previous action.

W ARNING

I.ndicates 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 Issued Date Description

A March 29. 2002 First Release
B January 20. 2003 The model name (Stylus C43/C44 series) is added.

CONTENTS

Chapter 1 PRODUCT DESCRIPTION

1.1 FEATURES ......................................................................................................... 9

1.1.1 Model ......................................................................................................... 10

1.1.2 Differences bet ween the Stylus C41/C42 series and the Stylus C40/C20 . 10

1.2 OPERATOR CONTROLS .............................................................................. 11

1.2.1 Operate Switch ........................................................................................... 11

1.2.2 Control Panel ............................................................................................. 11

1.2.3 Panel Functions .......................................................................................... 11

1.2.4 Printer Condition and Panel Status ............................................................ 11

1.2.5 Errors ......................................................................................................... 12

Chapter 2 Disassembly and Assembly

2.1 Overview ............................................................................................................ 14

2.1.1 Precautions ................................................................................................. 14

2.1.2 Tools .......................................................................................................... 15

2.1.3 Screws ........................................................................................................ 16

2.1.4 Work Completion Check ........................................................................... 17

2.2 Disassembly ....................................................................................................... 18

2.2.1 Upper housing removal .............................................................................. 18

2.2.2 ASF unit removal ....................................................................................... 20

2.2.3 Waste ink pad removal .............................................................................. 21

2.2.4 PS unit removal .......................................................................................... 22

2.2.5 Paper eject roller removal .......................................................................... 23

2.2.6 Paper Guide Upper/Left removal ............................................................... 25

2.2.7 MAIN board removal ................................................................................ 27

2.2.8 Printhead unit removal ............................................................................... 29

2.2.9 LD unit removal ......................................................................................... 32

3.1.1 Required Adjustment ................................................................................. 34

3.1.2 Adjustment Program Initial Setting menu ................................................. 35

3.1.3 Adjustment Program feature ...................................................................... 36

3.1.4 EEPROM initial setting ............................................................................. 38

3.1.5 Head ID ...................................................................................................... 39

3.1.6 Bi-D ........................................................................................................... 40

3.1.7 USB ID ...................................................................................................... 42

3.1.8 First Dot Position ....................................................................................... 44

3.1.9 Top margin ................................................................................................ 45

3.1.10 Head cleaning .......................................................................................... 46

3.1.11 Initial ink charge ...................................................................................... 46

3.1.12 Refurbishment for DOA .......................................................................... 47

3.1.13 Protection counter check ......................................................................... 48

3.1.14 EEPRON check ....................................................................................... 50

3.1.15 EEPROM back up data ............................................................................ 51

3.1.16 A4 pattern will print ................................................................................ 52

Chapter 4 Maintenance

4.1 Overview ............................. ...... ...... ....................................... ............................ 55

4.1.1 Cleaning ..................................................................................................... 55

4.1.2 Service Maintenance .................................................................................. 55

4.1.3 Lubrication ................................................................................................. 56

Chapter 5 Appendix

5.1 Electrical Circuits ............................................................................................. 59

Chapter 3 Adjustment

3.1 Overview ............................................................................................................ 34

PRODUCT DESCRIPTION

CHAPTER

Stylus C41/42/43/44 series Revision B

1.1 FEATURES

The main feature of this printer is described in the following table;

Table 1-1. Feature - 1

Item Description

Printhead

Maximum resolution 1440 x 720 DPI

Through put

Color printing 4 colors

Interface*1

Applicable OS Windows98, Me, XP, 2000, (95), Mac OS

Paper Handling

Paper Specification

monochrome : 48 nozzles
color : 15 nozzles x 3 (Cyan, Magenta, Yellow)

Black text :5 PPM
Black text economy (Memo) : 12 PPM
Text & color graphic : 0.8 PPM

USB/USB 2.0 or Parallel (IEEE‑1284compatibility

mode

)

FrictionfeedwithASF:Top in front out

• Holds 100 cut-sheets (65 g/m?)

• Holds 10 envelopes

• Holds 10 transparency films
Cut sheet : A4, Letter, Legal, Half Letter, Exclusive, A5,

A6

• Thickness : 0.08 mm(0.003") - 0.11 mm(0.004")

• Weight : 64 g/m 2 ( 17 lb.55Kg) - 90 g/m 2 (24 lb.78Kg)

• Quality : Exclusive paper, Bond paper, PPC

V Parallel Interface

EPSON Stylus C41SX .EPSON Stylus C42SX

V USB Interface

EPSON Stylus C41UX .EPSON Stylus C42UX

Table 1-2. Feature - 2

Item Description

Acoustic noize Level :Approx. 48 dB(A) (According to ISO 7779)

Universal power supply

• Rated frequency range : 50 - 60 Hz

Electrical specification

Print capacity

• Input frequency range : 49.5 - 60.5 Hz

• Rated current : TBD

• Power consumption : TBD

• Black : 300 pages / A4 (ISO/IEC10561 Lett e r Pattern at 360
dpi)

• Color : 150 pages /A4 (360 dpi, 5% duty each color)

T Total print volume

Reliability

: 10,000 pages (A4, Letter) or 20,000 pages (A4, Letter)

T Print Head Life

: 4000 million dots/nozzle

Envelope : No.10, DL, C6, Envelope220*132
Weight :#10,DL,C6 45 g/m 2 (12 lb.) - 75 g/m 2 (20 lb.)
Quality : #10,DL,C6 Bond paper, Plain paper, Air mail

Input buffer 12 KB

“*1” : Interface specification for each model are as the following.

Figure 1-1. Stylus C41/C42 Dimensions

PRODUCT DESCRIPTION FEATURES 9

Stylus C41/42/43/44 series Revision B

1.1.1 Model

The model names are also descriminated by market as followings;

Table 1-3. Model name

Model name Market

Stylus C41 Mainly Asia & Pacific market
Stylus C42 Mainly American & European market
Stylus C42Plus Printer cov er : purple

1.1.2 Differences between the Stylus C41/C42 series and the Stylus C40/C20

The Stylus C41/C42 series are based on Stylus C40/C20, but the some chracteristics
are different from the previous models. The main difference are as followings;

PRINT SPEED

Throughput

V

Table 1-4. Throughput

Models

Stylus

C41/C42 series 12 PPM 5 PPM

Monochrome t e x t e c onomy

(Memo)

Text monochrome

Table 1-5. Ink cartridge type

Models Ink cartridge type

Stylus C41/C 42 series CSIC
Stylus C40/C20 No CSIC

USB

The Stylus C4xUX/C2xUX are adopting USB 2.0 interface.

NOTE: The EPSON standard USB cable or less than 3m length USB cable are

commended for connection.

POWER SUPPLY

As, the Stylus C4x are adopting the un iv ers al power su pp ly , the pow er s upp ly board is
only one type.

Table 1-6. Power su pply type

Models Power supply

Stylus C41/C42

series

Stylus C40/C20 120V AC / 220-240VAC

Universal type

Stylus C40/C20 8 PPM 4 PPM

INK CARTRIDGE

The Stylus Stylus C41/C42 series are adop t in g the CS IC ty pe i nk cartr id ges , si mil ar t o
those of Stylus Photo 870/1270 and lately models.

PRODUCT DESCRIPTION FEATURES 10

Stylus C41/42/43/44 series Revision B

1.2 OPERATOR CONTROLS

1.2.1 Operate Switch

Operate switch is located on the control panel.

1.2.2 Control Panel

V Switches

There are 2 non-lock type push switches, and 2 LED.

V Indicators

(1) Power (green)

Lights when the operate switch is "ON", and AC power is supplied.

(2) Error (red)

Lights or blinks when some error occurs to the printer.

1.2.3 Panel Functions

V Panel Functions

SW Function

• Loads or Ejects the Paper(Push ing within 3seconds).

• Starts the Cleaning of head(Pushing for 3seconds)

Error Reset SW

*This function is not available in printing status.

V Panel Function with Power on

• When carriage is on the Ink Cartridge change position, return
carriage from Ink Cartridge change position.

• Starts the Ink Cartridge change (Pus hing for 6seconds)

1.2.4 Printer Condition and Panel Status

Printer status

Power ON condition On - 10
Ink sequence Blink - 6
Ink Cartridge change mode Blink - 5
Data processing Blink - 9
Paper Out *1 - On 4
Paper jam condition*1 - On 3 3
Ink end(Black)*1 - On->On 8
Ink level low(Black) - Blink->Blink 8
Ink end(Color)*1 - On->On 8
Ink level low(Color) - Blink->Blink 8
Ink end (Black and C olor) - On->On 8
No Ink Cartridge (Black or Color)*1 - On 7
Maintenance request

(Ink Overflow Counter error)
Fatal error*1 Off On 1

“-”:Indicator status don’t change
“a->b”:a is a Indicator condition when carriage is on Home Position.

b is a Indicator condition in Ink exchange sequence.

Powe Error Priority

Alt blink Alt blink 2

Indicators

SW Function

Error Reset SW Starts status printings

*1 : see “Errors” on page -12.

PRODUCT DESCRIPTION OPERATOR CONTROLS 11

Stylus C41/42/43/44 series Revision B

1.2.5 Errors

V Ink out

When the printer runs out the most part of the ink of any one color, it warns ink­low and keeps printing.When the printer runs out the whole ink of any one color, it
stops printing and indicates ink-out error. User is requested to install a new ink­cartridge in this state.

V Paper out

When printer fails to load a sheet, it goes paper out error.

V Paper jam

When printer fails to eject a sheet, it goes paper jam error.

V No ink-cartridge

When printer detects that ink-cartridge comes off , it goes this error mode.

V Maintenance request

When the total quantity of ink wasted through the cleanings and flushing is
reaches to the limit, printer indicates this error and stops. The absorber in the
printer enclosure is needed to be replaced with new one by a service person.

V Fatal errors

Carriage control error.

* panel status is described on section1.4.4.

PRODUCT DESCRIPTION OPERATOR CONTROLS 12

DISASSEMBLY AND ASSEMBLY

CHAPTER

Stylus C41/42/43/44 series Revision B

2.1 Overview

This section describes procedures for disass embling the main components of the Stylus
C41/C42 series. Unless otherwise specified, disassembly units or components can be
reassembled by reversing the disassembly procedure. Things, if not strictly observed,
that could result in injury or loss of life are described under the heading “Warning”.
Precautions for any disassembly or assembly procedures are described under the
heading “CAUTION”. Chips for disassembling procedures are described under the
heading “CHECK POINT”.
If the assembling procedure is different from the reversed procedure of the
disassembling, the procedure is described under the heading “REASSEMBLY”.
Any adjustments required after dis assembling the un its are describe d under the h eading
“ADJUSTMENT REQUIRED”. When you have to remove any units or parts that are
not described in this chapter, refer to the exploded diagrams in the appendix.

Read precautions described in the next section before starting.

2.1.1 Precautions

See the precautions given under the handling “WARNING” and “CAUTION” in the
following column when disassembling or assembling the Stylus C41/C42 series

W ARNING

T Disconnect the power cable before disassembling or assembling

the printer.

T If you need to work on the printer with power applied,

strictly follow the instructions in this manual.

Wear protective goggles to protect your eyes from ink. If ink gets

T

in your eye, flush the eye with fresh water and see a doctor
immediately.

T Always wear gloves for disassembly and reassembly to avoid

injury from sharp metal edges.

T To protect sensitive microprocessors and circuitry, use static

discharge equipment, such as anti-static wrist straps, when
accessing internal components.

T Never touch the ink or wasted ink with bare hands . If in k comes

into contact with your skin, wash it off with soap and water
immediately. If irritation occurs, contact a physician.

T When a lithium battery is installed on the main board of this

printer, make sure to observe the following instructions when
serving the battery:

1.Keep the battery away from any metal or other batteries so that
electrodes of the opposite polarity do not come in contact with each
other.

2.Do not heat the battery or put it near fire.

3.Do not solder on any part of the battery. (Doing so may result in
leakage of electrolyte from the battery, burning or explosion. The
leakage may affect other devices close to the battery.)

4.Do not charge the battery. (An explosion may be generated inside the
battery, and cause burning or explosion.)

5.Do not dismantle the battery. (The gas inside the battery may hurt your
throat. Leakage, burning or explosion may also be resulted.)

6.Do not install the battery in the wrong direction. (This may cause
burning or explosion.)

T Danger of explosion if the battery is incorrectly replaced.

Replace only with the same or equivalent type recommended by
the manufacture. Dispose the used batteries according to
government’s law and regul ation s .

Disassembly and Assembly Overview 14

Stylus C41/42/43/44 series Revision B

2.1.2 Tools

W ARNING

CAUTION

T Avant de commencer, assurez vous que l’imprimante soit eteinte

et que le cordon d’alimentation soit debranche.

T Lorsque vous changez la pile au lithium, assurez vous que la

nouvelle respecte bien les caracteristiques requises.

T Lorque que vous installez la pile au lithium, faites attention a

l’inserer dans le bon sens en respectant la polarite.

T Veillez a jeter les piles usagees selon le reglement local.
T Ne rechargez pas les piles au lithium.

Risque d’explosion si la pile est remplacée incorrectment. Ne
remplacer que par une pile du même type ou d’un type équivalent
recommandé par le fabricant. Eliminer les piles déchargées selon les
lois et les règles de sécurité en vigueur.

Use only specified tools to avoid damaging the printer.

Table 2-1.

Name Supplier Parts No.

Phillips Screw Driver (No.1) EPSON B743800100

Phillips Screw Driver (No.2) EPSON B743800200

Nipper EPSON B740500100

Tweezers EPSON B741000100

CAUTION

T Never remove the ink cartridge from the carriage unless this

manual specifies to do so.

T When transporting the printer to the customer after servicing, be

sure to pack the printer for transp orta tion with out rem ov ing the
ink cartridge.

T Use only recommended tools for disassembling, assembling or

adjusting the printer.

T Observe the specified torque when tightening screws.
T Apply lubricants and adhesives as specified. (See “Maintenance”

on page 54 for deta i ls.)

T Make the specified adjustments when you disassemble the

printer.
(See “Adjustment” on page 33 for details.)

7.

Disassembly and Assembly Overview 15

Stylus C41/42/43/44 series Revision B

2.1.3 Screws

Table 2-2.

No. Name and Specification Outward Form

1 CBS 3x6

2 CBP 3x8

3 CBS (P2) 3x6

4 CBS 3x8

5 C.P.F.S-Tite 3x12

Disassembly and Assembly Overview 16

Stylus C41/42/43/44 series Revision B

2.1.4 Work Completion Check

If any service is made to the printer, use the checklist shown below to co nfirm all works are
completed properly and the printer is ready to be returned to the user.

Table 2-3. Work Completion Check

Classifi-

cation

Main Unit

Adjustment

Item Check Point Status

Self-test Is the operation normal?

On-line Test Is the printing successful?

Printhead

Carriage
Mechanism

Paper Feeding
Mechanism

Specified
Adjustment

Is ink discharged normally from
all the nozzles?

Does it move smoothly?

Is there any abnormal noise
during its operation?

Is there any dirt or foreign
objects on the CR Guide Shaft?

Is the CR Motor at the correct
temperature?
(Not too heated?)

Is paper advanced smoothly?

• No paper jamming?

• No paper skew?

• No multiple feeding?

• No abnormal noise?

Is the PF Motor at correct
temperature?

Is the paper path free of any
obstructions?

Are all the adjustment done
correctly?

V Checked
V Not necessary

V Checked
V Not necessary

V Checked
V Not necessary

V Checked
V Not necessary

V Checked
V Not necessary

V Checked
V Not necessary

V Checked
V Not necessary

V Checked
V Not necessary

V Checked
V Not necessary

V Checked
V Not necessary

V Checked
V Not necessary

Classifi-

cation

Lubrication

Packing

Others

Table 2-3. Work Completion Check (continued)

Item Check Point Status

V Checked
V Not necessary

V Checked
V Not necessary

V Checked
V Not necessary

V Checked
V Not necessary

V Checked
V Not necessary

Specified
Lubrication

Ink Cartridge

Protective
Materials

Attachments,
Accessories

Are all the lubrication made at
the specified points?

Is the amount of lubrication
correct?

Are the ink cartridges installed
correctly?

Have all relevant protective
materials been attached to the
printer?

Have all the relevant items been
included in the package?

Disassembly and Assembly Overview 17

Stylus C41/42/43/44 series Revision B

2.2 Disassembly

The flowchart below shows step-by-step disassemb ly procedures. When d isassembling
each unit, refer to the page number shown in the figure.

Upper hous ing

removal

Page 18

ASF unit

removal

Page 20

PS unit

removal

Page 22

Printhead unit

removal

Page 29

MAIN board

removal

Page 27

Paper eject

roller removal

Page 23

LD unit
removal

Page 32

Waste ink pad

removal

Page 32

2.2.1 Upper housing removal

1. Move the edge guide to the right until it stops moving. Make sure the edge guide is
in the upper housing’s notch position.

Edge guide

Figure 2-2. Position of Edge guide

Figure 2-1. Disassembling Flowchart

CAUTION

Do not remove the Main Frame from the Lower Housing to avoid the
deformation of the Main Frame.
Therefore, you cannot remove the following parts.

T Lower Housing
T Main Frame
T PF Motor
T Pump Unit
T Cap Unit
T PF Roller Assy.

Disassembly and Asse mbly Disassembly 18

Stylus C41/42/43/44 series Revision B

2. Remove the 2 hooks at the front using a precision screwdriver (-).

CAUTION

The printer should not turn when the front 2 hooks are removed.

Upper housing

3. Remove the 2 hooks on the sides by pushing the tops of the hooks up.

Figure 2-4. Removing the side hook

4. Remove the 3 hooks at the back using a (-) screwdriver or similar tool.

Figure 2-3. Removing the front hook

Figure 2-5. Removing the back hook

Disassembly and Asse mbly Disassembly 19

Stylus C41/42/43/44 series Revision B

2.2.2 ASF unit removal

1. Remove the upper housing. (Refer to Section 2.2.1)

2. Take out the three screws.

ADJUSTMENT

REQUIRED

The Top Margin adjustment is required when the ASF unit is
replaced.

CBP 3×8

3333

1111

CBP 3

×6

CBS (P2) 3×6

Figure 2-6. Removing the ASF unit

3. Pull the ASF unit toward the rear and remove it.

T When installing the ASF unit, install the spring in the guide, then

install it while supporting it by hand.

2222

Figure 2-7. reassembling the ASF unit

When reassembling the ASF unit tighten screws form lower

T

numbers in Figure2-6.

T Tightening Torque for screw

- C.B.S 3x6 : 9+/-1 kgf.cm

- C.B.S (P2) 3x6 : 9+/-1 kgf.cm

- C.B.P 3x8 : 6+/- 1 kgf. cm

Disassembly and Asse mbly Disassembly 20

Stylus C41/42/43/44 series Revision B

2.2.3 Waste ink pad removal

1. Remove the upper housing. (Refer to Section 2.2.1)

2. Remove the ASF unit. (Refer to Section 2.2.2)

3. Remove the Waste ink pa d.

ADJUSTMENT

REQUIRED

When the Waste ink pad is replaced with a new one, following service
item is required.

T Waste ink counter reset operation. ( Section 3.1.13 on page 48.)

tube stopper

Waste ink pad

Figure 2-8. Removing the Waste ink pad

T When assembling the Waste ink pad, be sure to set the tip of the

ink tube in the correct position of the Waste ink pad. Otherwise
it will cause ink leakage.

Figure 2-9. Tip of ink tube setting position

Disassembly and Asse mbly Disassembly 21

Stylus C41/42/43/44 series Revision B

2.2.4 PS unit removal

1. Remove the upper housing. (Refer to Section 2.2.1)

2. Remove the ASF unit. (Refer to Section 2.2.2)

3. Disconnect the cable from the connector (CN2) on the main board us ing tweezers,
etc.

4. Take out the 2 screws.

CN2

PS unit

C.B.S 3×6

C.B.P 3×8

T When installing the PS unit, make sure the claws are attached to

the hooks on the lower housing.

Figure 2-11. Reassembling the PS unit

Do not insert the pin of the PS cable to the leftmost side of the

T

connector because the 1st pint of its cable is cut.

Figure 2-10. Removing the PS unit

5. Pull the PS unit out while lifting up on it.

Blue line
marking

Figure 2-12. Connecting the PS cable(CN2)

Tightening Torque for screw

T

- C.B.S 3x6 : 6+/-1 kgf.cm

- C.B.P 3x8 : 6+/-1 kgf.cm

Disassembly and Asse mbly Disassembly 22

Stylus C41/42/43/44 series Revision B

2.2.5 Paper eject roller removal

1. Remove the upper housing. (Refer to Section 2.2.1)

2. Grip the dowel pin of the PE roller’s gear, turn it clockwise and release the
carriage lock.

Protrusion

4. Take out the two screws.

CBS 3×6

Figure 2-14. Take out the screw

5. Return the carriage to the home position, then remove the Front Frame.

Figure 2-13. Releasing the carriage lock

3. Move the carriage to the center.

Front Frame

Figure 2-15. Removing the Front Frame

Disassembly and Asse mbly Disassembly 23

Stylus C41/42/43/44 series Revision B

6. Slide the PE roller to the left side, then remove the claw extending from the lower
housing.

CAUTION

Paper Eject roller

T If the Paper eject roller gear and Paper eject roller shaft are

removed or , make sure that neither of the Paper eject roller
shaft hooks is damaged.
If either of the hooks is damaged, it should be replaced with a
new one.

hook

Figure 2-16. Releasing the claw extending

7. Remove the gear from the frame, then remove the Paper eject roller.

Figure 2-18. Hook of Paper eject roller

T Tightening Torque for screw

- C.B.S 3x6 screw for Front frame : 6+/-1 kgf.cm

Gear

Figure 2-17. Removing the Paper eject roller

Disassembly and Asse mbly Disassembly 24

Stylus C41/42/43/44 series Revision B

2.2.6 Paper Guide Upper/Left removal

CAUTION

1. Remove the upper housing. (Refer to Section 2.2.1)

2. Place the OHP sheet between the Paper Guide Upper/Left and the PF roller by
rotating the protrusion of the Paper Eject roller gear in CW direction.

Perform this operation by the following procedures so that the coating
material of the PF roller does not damage.

Protrusion

3. Press the dowel of the paper guide unit with tweezers, etc., then pull it forward and
remove it.

OHP paper

dowel

Figure 2-20. Removing the Paper Guide Upper/Left

Figure 2-19. Place the OHP sheet

Disassembly and Asse mbly Disassembly 25

Stylus C41/42/43/44 series Revision B

1. Insert the tip of the spring to the Paper Guide.

Figure 2-21. Setting the spring to the Paper Guide

2. Place the OHP sheet on the PF roller.

3. Assemble the Paper Guide Upper/Left to the Main Frame.

Figure 2-23. Assembling the Paper Guide 1

4. Fix the dowel of the Paper Guide Upper/Left to the hole of the Main
Frame by sliding the Paper Guide Upper/Left to the right side. And,
release the spring from the hook of the Paper Guide Upper/Left.

dowel

OHP paper

Release the spring

Figure 2-22. Placing the OHP sheet

Figure 2-24. Assembling the Paper Guide 2

Disassembly and Asse mbly Disassembly 26

Stylus C41/42/43/44 series Revision B

5. Eject the OHP sheet from the printer by rotating the protrusion of
the Paper Eject roller gear in CW direction.

Protrusion

Figure 2-25. Ejecting the OHP sheet

2.2.7 MAIN board removal

1. Remove the upper housing. (Refer to Section 2.2.1)

2. Remove the ASF unit. (Refer to Section 2.2.2)

3. Remove the PS unit. (Refer to Section 2.2.4)

4. Remove the three screws, then remove the shield cover.

Disassembly and Asse mbly Disassembly 27

Stylus C41/42/43/44 series Revision B

5. Disconnect the four connectors (CN9, CN4, CN7, CN12).

USB Type

Parallel Type

CBS 3×6

C.P.F.S-Tight 3×12

CBS 3×6

CBS 3×8

CN9

CN4

CN7

CN12

Figure 2-27. Disconnecting the connectors

6. Take out the 1 screw. (Refer to Figure 2-27.)

7. Lift the MAIN board up and remove it.

Tightening Torque for screw

T USB Type

- C.B.S 3x6 screw : 9+/-1 kgf.cm

- C.B.S 3x8 screw : 9+/-1 kgf.cm

T Parallel Type

- C.B.S 3x6 screw : 9+/-1 kgf.cm

- C.P.F.S-Tight 3x12 screw : 9+/-1 kgf.cm

- C.B.S 3x8 screw : 9+/-1 kgf.cm

Figure 2-26. Removing the Shield cover

Disassembly and Asse mbly Disassembly 28

Stylus C41/42/43/44 series Revision B

2.2.8 Printhead unit removal

ADJUSTMENT

REQUIRED

When replacing the Main board with a new one, perform the
following service items.

T Before removing the Main Board, connect the parallel cable or

USB cable and try to read out the following data by using the
Adjustment program. If this operation succeeds, replace the
Main board and write the read out data to the new Mai n
board through the Adjustment program. (“EEPROM back up
data” on page51)

1) I/C Ink consumption counter.

2) Waste ink drain pad counter.

3) EEPROM Initial setting

4) Head ID input

5) Top margin adjustment

6) Bi-D adjustment
In case the above mentioned data are not able to be read out from the
defective Main board, perform the following service items.

T Replace the both ink cartridges with a brand new one.
T Replace the Waste ink pad with a new one.
T Reset the Ink pad counter
T Input the EEPROM initial setting value
T Input the Head ID
T Adjust the Top margin
T Adjust the Bi-D alignment.

1. Remove the upper housing. (Refer to Section 2.2.1)

2. Remove the ink cartridges.

3. Move the carriage to the center.

4. Take out the screw, then remove the CR motor from the frame.

CR motor

CR pinion gear

CBS 3×6

Figure 2-28. Removing the CR motor

5. Remove the timing belt from the Carriage pinion gear.

CAUTION

T Do not remove the below screw, fixing the driven pulley.

Because, the screw has been fixed in the static temparature
condition. If removed, the Bi-D will be changed in
widetemparature range.

Screw

Disassembly and Asse mbly Disassembly 29

Stylus C41/42/43/44 series Revision B

T When reassembling the CR motor, it contact the lib of Main

frame after turning clockwise.

lib

Figure 2-29. Reassembling the CR motor

Tightening Torque for screw

T

- C.B.S 3x6 screw : 9+/-1 kgf.cm

FFC

Carriage unit

CSIC board

connector

Figure 2-30. Disconnecting the FFC

7. Release the two hook, fixing between the Printhead unit and carriage cover, on the
both sides of the carriage unit, then pull the unit forward and remove the cover.

6. Release the FFC form the fixing points of the carriage and disconnect the FFC
from the CSIC board connector on the carriage unit.

Figure 2-31. Release the two hooks

8. Lift the Printhead unit up and remove it.

Disassembly and Asse mbly Disassembly 30

Stylus C41/42/43/44 series Revision B

T If the Carriage unit is disassembled or replaced with a new one,

make sure that the Carriage timing belt is set in the assembling
groove correctly as following figure.

Timing belt

Printhead unit

Figure 2-32. Removing the Printhead unit

9. Disconnect the FFC from the connector.

ADJUSTMENT

REQUIRED

FFC

When the Printhead is replaced with a new one, following adjustments
must be performed in the order below: Refer to Table 3-1.

1. Initial ink charge

2. Head ID input

3. Bi-D adjustment
When the Printhead is removed and reinstalled, only the following
adjustment is required. Refer to Table 3-1.

1. Head cleaning

2. Bi-D adjustment

Figure 2-33. Disconnecting the FFC

Disassembly and Asse mbly Disassembly 31

Stylus C41/42/43/44 series Revision B

2.2.9 LD unit removal

1. Remove the upper housing. (Refer to Section 2.2.1)

2. Remove the ASF unit. (Refer to Section 2.2.2)

3. Disconnect the cables which are connected to the LD unit.

4. Disconnect connector CN4 form the MAIN board.

LD unit

Cables

Figure 2-34. Disconnecting the Cables

5. Push the two hooks on the LD unit, then lift it up and remove hook of pump unit

ADJUSTMENT

REQUIRED

T When reassembling the LD unit, make sure that seven hooks are

set to the Main frame.

Figure 2-36. Setting seven hooks

The Top Margin adjustment is required when the LD unit is replaced.

Hooks

Figure 2-35. Removing the LD unit

Disassembly and Asse mbly Disassembly 32

ADJUSTMENT

CHAPTER

Stylus C41/42/43/44 series Revision B

3.1 Overview

This section describes the procedure for adjustments required when the printer is
disassembled and assembled for repair or service.

3.1.1 Required Adjustment

Table 5-1 lists all the necessary adjustments for this printer. If any serv ice listed in this
table is carried out, all adjustments corresponding to that service item should be
performed to ensure proper operation of the printer.

Table 3-1. Required Adjustment

Performance

Priority

Replacing part s/
Service item

Replacing the
Main Board

Removing the
Printhead unit

Replacing the
Printhead unit

Replacing the
Printer mechanism

1 2 3 4 5 6 7

EEPROM
initial
setting

? @

NA NA NA NA NA

NA

NA NA

Ink pad
Counter
reset

Initial
Ink
Charge

NA

Head
ID
Setting

A B C D

? @ A

?@A B

Top margin
Adjustment

NA

Bi-D
Adjustment

Å

B

USB
ID
Input

NA

NA

NA

NOTE: • “O”: Required Adjustment. The number in the circle shows th e required

adjustment order.
“NA”: Not applicable.

• Following adjustments are not required on this product.

-Platen Gap adjustment

-Head Angular adjustment.

• When the Main board is replaced with new one, you may have to
replace the following parts also in case the EEPROM parameter back up
function is not available on the defective main board.
* Waste drain ink pad
* Both Black & Color Ink Cartridge

This section describes the detailed procedures of each adjustment by Adjustment
Program.

In this printer, it is necessary to set the adjusting information for each printer
mechanism in order to maintain consistent printing function and quality, eliminating
differences of each printer mechanism’s characteristics. Therefore, in case that the
combination of the printer mechanism and main board changes or the print head is
replaced during the repair service, you must set and sav e the corr ect information to the
MAIN board, using the exclusive adjustment program.

CHECK

PO INT

In case any parts is removed and assembled on the repair product
while running the Adjustment program, turn off the printer
certainly.

Replacing the
Waste drain ink
pad

Removing or
Replacing the ASF
unit

Removing or
Replacing the LD
unit

NA

NA NA NA NA

NA NA NA NA

?

NA NA NA NA NA

?

?

NA NA

NA NA

Adjustment Overview 34

Stylus C41/42/43/44 series Revision B

3.1.2 Adjustment Program Initial Setting menu

You have to input the following four items before entering the adjustment main menu.

V Model name (Stylus C41UX/41SX/42UX/42SX)

For the Stylus C41UX, select Model name “Stylus C41UX.”

V Interface setting (LPT1, LPT2, LPT3, EPUSB1, EPUSB2, EPUSB3)

1. When you run this program, the following menu appears. Select the model name
in the screen below.

Figure 3-1. Model Name Selection

2. Select the Interface port number which you connect the printer to your PC.

Figure 3-2. Interface Setting

NOTE: This printer stores model name in the PROM. Therefore, even you select

the model name in the screen above, model name will not stored in the
EEPROM. Selecting model name in the screen above determines
respective special command for each model.

Adjustment Overview 35

Stylus C41/42/43/44 series Revision B

3.1.3 Adjustment Program feature

The adjustment program enables you to set various values correctly to prevent
malfunction and fluctuation of printing quality and printing function caused by
difference in components and assembly when the printer components are replaced
during repair. Basic adjustment items by using this program are shown as fe llows.

CHECK

PO INT

No Main Menu Service

1 Adjustment

T This program does not operate under DOS or Windows 3.X, NT,

but operates Windws95/98 only.

T Perform this adjustment program using parallel I/ F or USB.

Table 3-2. Basic adjustment items

EEPROM initial setting
Head ID input
Bi- D adjustment
USB ID input
First dot position
Top margin

The user interface of the main menu on this program is shown below.

Figure 3-3. Adjustment program main menu

The “Adjusted item” in the right column shows you the adjusted item which executed
in this program and it is easy to confirm the adjusted value.

Additionally, this program runs under the D4 (IEEE-1284.4) protocol . So, this program
can get the several error statuses even if the printer is error condition, and can control
the printer under the error condition. Following explain you the common function of
the Adjustment program.

Head cleaning
Initial ink charge
Refurbishment for DOA

2 Maintenance

Protection counter check
EEPROM check
EEPROM back up data

3 Print A4 pattern A4 pattern will print

V Quit

If you want to exit this program, click the “Quit” button. Following menu is displayed
on the screen. And clicking the “Quit” Button in the following menu exit the
adjustment program completely. Clicking the “Next” button returns to the Top menu
(Initial setting menu) of Figure 5-3.

Figure 3-4. Quit function

Adjustment Overview 36

Stylus C41/42/43/44 series Revision B

V

Get status

This function is used to get the printer status and following figure is displayed on the
screen by clicking the “Get status” button. This fun ction can get the printer status ev en
if the printer is error condition except the main logic circuit failure, and control the
printer by using the D4 mode functions.

CAUTION

This program dose not display the “Paper out” error status in the
Bi-d adjustment even if the paper is out in the ASF. When the
paper is out in the ASF, this program continues to send the paper
feed command until the paper is set in the ASF.

Figure 3-5. Get status function

Adjustment Overview 37

Stylus C41/42/43/44 series Revision B

3.1.4 EEPROM initial setting

This function is used when replacing the MAIN board.
Using this function enables writing of the initial setting values to the ne w MAIN

board’s EEPROM.

1. Choose the “EEPROM initial setting” in the Adjustment menu.

Figure 3-7. EEPROM initial setting (2)

Figure 3-6. EEPROM initial setting (1)

2. Click the “OK” button, then the initial setting values are written to the MAIN
board. If choose “Check“, the destination setting will be appera.

Adjustment Overview 38

Stylus C41/42/43/44 series Revision B

3.1.5 Head ID

This adjustment function is required when any of the following parts is replaced.

V Printhead
V Main board
V Printer mechanism

This adjustment function enables you to write printhead Voltage ID into the specific
address of the EEPROM. This operation is considered the most important to maintain
proper ink discharging system. If any ID is not written correctly, it results in white or
color lines and also gives bad influence on dot weight.

1. When replacing any of the parts above, make a note of VH voltage ID in advance.
You can find the VH voltage ID on the following position:

T Printhead: On the top right face of the printhead.

A 6-digit ID code is printed with the QR code on the label.

T Printer mechanism: On the label of the packing box of the printer mechanism.

2. Run the Adjustment program and enter the Adjustment Main menu.

3. Choose the “Head ID” and click it. The menu shown in the next page appears.

4. Choose the “Check present data” and click the OK button. Following Check
present data menu is displayed. Click the OK button, then readout data is
displayed.

Figure 3-9. Read out the Head ID from the EEPROM

5. Choose the “Change data” item in the Head ID input menu and click the OK
button. Following Head ID input menu is displayed. Input a 6-digit code of the
Head Voltage ID in the following menu.

Figure 3-8. Head ID input menu

Figure 3-10. Entering the 6-digits Head ID

Adjustment Overview 39

Stylus C41/42/43/44 series Revision B

6. When the Head ID is input and writes to the EEPROM, the message is displayed
on the bottom column in the menu.

3.1.6 Bi-D

You perform this adjustment to correct differences in printing positions, which is
caused by incorrect of printing timing in right and left directions during the Bi­directional printing. Therefore, you are required to perform this adjustment after
performing the following operations.

T Replacing the Print mechanism
T Replacing the main board
T Replacing the CR motor
T Replacing the Printhead

1. Choose the “Bi-D” in the “Adjustment menu” as following figure.

Figure 3-11. Choose the Bi-d adjustment

2. Choose the “Print the Bi-d adjustment pattern” in the “Bi-Directional Adjustment
pattern” and click the “OK” button.

Adjustment Overview 40

Stylus C41/42/43/44 series Revision B

Figure 3-12. Bi-d adjustment pattern

NOTE: As shown in the sample, gaps between passes are sometimes created in

different directions among patterns. This unexpected change in direction
is caused by an ink jet printer-specific reason, which is an ink jet printer
inevitably performs a periodical cleaning specified by the flashing timer
even during Bi-D pattern printing, so that the pr inting dir ection suddenly
changes. However, this directional difference among Bi-D patterns
should not be considered, and you can always confirm and adjust the
pattern correctly by referring to gap amount only.

3. Click the “Previous” and go back to the “BI-Directional Adjustment” menu. And
choose the “Adjust” menu and click the “OK” button.

4. Check the printed pattern and find the misaligned dot type.

Choose the

misaligned dot size in the following menu and click the “OK” button.

Figure 3-13. Choose the misaligned dot size

5. By choosing the misaligned dot size, following input menu for the adjustment
value is displayed. Check the printed pattern again and Input the suitable value in
the following menu and click the “OK” button.

Figure 3-14. Bi-d adjustment input menu

6. The follo wing menu appears. Press “OK“ to system reset to the printer. The input
value is written in the specific address of the EEPROM.

Adjustment Overview 41

Stylus C41/42/43/44 series Revision B

3.1.7 USB ID

When you replace the main board with a new one, you have to input the USB ID newly
into the specific address of the EEPROM. When the Printer and the PC are connected
with a USB cable, the USB port driver loads the unique code from the specific address
of the printer’s EEPROM and the provides the USB port number to the unique code.

Figure 3-15. System reset of the printer

The USB port driver controls the several USB ports under the Windows 98
environment.

7. To confirm if the adjustment value is suitable, click the “Previous” button and go
back to the “Bi-Directional Adjustment” menu. Choose the “Print the Bi-D
adjustment patter” and click the “OK” button.

8. Repeat from Step1 to the previous step to align the Bi-D pattern.

A unique code called USB ID is input to the specific address of the EEPROM in our
manufactory and the following total 18-digit code is used as a USB ID for the EPSON
ink jet printer.

T Factory line number (3-digit)
T PC number (2-digit)
T Input year/month/date/time (hour, minutes, second) (12-digit)

The timer data of the PC is used for this input data.

T Number 0

A “0” is automatically added for the last digit in the input program.

In repair activity, we use a 10-digit code of the Serial number for a USB ID. The
remaining 8digits code is generated in the adjustment program and added to the serial
number automatically.

Adjustment Overview 42

Stylus C41/42/43/44 series Revision B

2. Choose the “Input USB ID” and click “OK” button in the “USB ID check/Input”

CAUTION

T In case the USB ID is not input in the adjustment program after

the main board is replaced to new one, the USB ID may not
possibly unique one. In this case, the USB ID conflicts another
peripheral USB ID in the USB port driver and the another USB
peripheral may not possibly be used with the USB.

menu. Following menu is displayed.

T This menu is only appeared in case of connecting to USB model.

1. Choose the “USB ID input” in the Adjustment menu.

Figure 3-17. Choose the USB ID input menu

3. Check the 10digits code of the serial number on the serial number label stuck
around the rear side of the Upper housing. Input the 10digits code of the serial
number in the input menu and click “OK” button.

Figure 3-16. Choose the USB ID input menu

NOTE: Even though you input irresponsible another 10digits code and click the

“OK” button, the program allow to input the code and write down it the
specific address of the EEPROM. But, there is a possibility that the code
is not unique and the code conflicts another USB ID in the USB port
driver.

Adjustment Overview 43

Stylus C41/42/43/44 series Revision B

3.1.8 First Dot Position

This Adjustment revises gap of left margin ( Print start position) of post card printing
and A4 printing.

5. Press [OK] button after confirming.

6. Repeat above 2 to 5 and adjust so that left margin will be 3+/-1.5mm.

T While warming up (Power LED blinking condition),Program

can not be executed (communication error happens). Execute
program on condition that Printer power LED is turning on.

T Whenever input step 1, it changes by 1/2880dpi (0.009mm).

Figure 3-18. First Dot Position Adjustment

The figure indicated in the center of Adjustment window is the current figur e record ed
in EEPROM.

1. Press [Print] button and print Adjustment Pattern.

Figure 3-19. First Dot Position Pattern

2. Measure the distance (left margin) from the paper left edge of print pattern to vertical
pole of print start position.( Refer to Figure 3-36)

3. Change setting by pressing “

4. If following indication appears, set printer power OFF/ON in order to record
predetermined limit to printer at first.

r

” “s” button beside or under the predetermined figure.

Adjustment Overview 44

Stylus C41/42/43/44 series Revision B

3.1.9 Top margin

This function can be used to change the top margin value.
You are required to perform this adjustment after performing the following operations.

T Removing or replacing the ASF unit.
T Removing or replacing the LD unit.
T Replacing the Printer mechanism
T Replacing the main board

1. Choose the “Top margin” in the Adjustment menu.

2. Choose the “Print the Top margin” in the “Top margin adjustment” and click the
“OK” button.

Figure 3-21. Top margin adjustment pattern

3. Check that the printed horizontal line is in 2.6mm ~ 7.2mm from the top of the
paper. If it is out of the specific range, perform the Top Margin adjustment by the
following procedure.

4. When adjusting the top margin, select “Adjust” from “Top margin adjustment”,
the click the “OK” button.

Figure 3-20. Choose the Top margin menu

Adjustment Overview 45

Stylus C41/42/43/44 series Revision B

3.1.10 Head cleaning

This printhead cleaning is CL1’ and about 1/8 of the brand-new black I/C and 1/17 of
the brand-new color I/C are consumed. Before use this function, check the remaining
ink amount of the both I/C by using the “Get status” function.

1. Choose the “Head cleaning” in the Maintenance menu.

Figure 3-22. Choose the Head cleaning menu

2. Click the “OK” button in the menu. The powerful cleaning is performed.

3.1.11 Initial ink charge

After you replaced any of the following units, perform in itial ink charge and retur n the
printer after making sure that ink is ejected correctly from the printhead.

T After replacing the printer mechanism
T After replacing or removing the printhead

CAUTION

1. Choose the “Initial ink charge” in the Maintenance menu.

Before you perform the initial ink charge operation, replace the
installed cartridges with new ones, because the ink amount used
for the initial ink charge operation is so large.

Figure 3-23. Choose the Initial Ink Charge menu

2. Click the “OK” button in the menu. The initial ink charge is performed.

NOTE: As described in the menu message, about 1/4 amount of the Black ink

cartridge and 1/9 amount of the Color ink cartridge are consumed in the
initial ink charge operation.

Adjustment Overview 46

Stylus C41/42/43/44 series Revision B

3.1.12 Refurbishment for DOA

If you clean the cavity of the printhead and cap assembly, this function will be useful.

CAUTION

1. Choose the “Refurbishment for DOA” in the Maintenance menu.

T After carry out this function, replace the waste drain ink pad

with new one and reset the Waste drain ink pad counter.
Otherwise, the ink or S46 liquid may leak from the pad during
the transportation.

T Prepare the following tool.

*Dummy ink cartridge, Injector, S46 liquid

T Do not carry out this program repeatedly. This operation is

available only one time. Excessive operation causes overflow of
the ink and S46 liquid.

T When you refurbish the repair product by using t his program,

do it on your responsibility.

T When you charge S46 liquid into the dummy ink cartridge with

the Injector, make sure fill out the dummy ink cartridge with S46
liquid. In case enough S46 liquid is not charged into the dummy
cartridge, the printhead will not cleaned and not filled with the
S46 liquid enough in this op eration.

T Keep the S46 liquid and the dummy ink cartridge clean.

2. Set the dummy cartridge in the printer using the ink replacement function.

3. Select “Yes” under “Item,” then click the “OK” button. The “Refurbishment for
DOA” function is then executed.

Figure 3-24. Choose the Refurbishment for DOA menu

Adjustment Overview 47

Stylus C41/42/43/44 series Revision B

3.1.13 Protection counter check

The program allows you to check or clear the current protection counter value (waste
ink amount counter).

Check the present counter value

1. Choose the “Check the present counter values” in the “Maintenance” menu and
click the “OK” button.

Figure 3-25. Choose the Check the present counter value

2. After read the Caution description on the above menu, click the “OK” button in the
menu. The present counter value is displayed on the bottom column as following
figure.

Figure 3-26. Present counter value

3. If the present counter value is over 5845 points, we recommend you to replace the
Waste ink drain pad to ne w one.

Adjustment Overview 48

Stylus C41/42/43/44 series Revision B

Clear the present counter value

1. Choose the “Clearning the present counter values” in the “Ptotection counter
maintenance” menu and click the “OK” button.

Figure 3-27. Choose the Clear the present counter value

2. After you read the description on the menu, click the “OK” button.

CAUTION

CHECK

PO INT

Be sure to replace the installed waste ink pad with a new one after
or before you clear the current protection counter value.

The initial value of the Protection counter is differ by destination
as bellow:

T ESP : 0
T Excepting ESP: 2940

Figure 3-28. Clear the present counter value

Adjustment Overview 49

Stylus C41/42/43/44 series Revision B

3.1.14 EEPRON check

You can check the EEPROM data or can write the specific data into the specific
address of the EEPROM directly even if the printer is error condition. (In case one of
the main logic circuit such as CPU, I/F receiver IC, RAM, EEPROM is broken, this
function is not available) Select the “EEPROM check” function in the Maintenance
menu.

The main menu of this function is as following figure. The following two functions are
built in this program.

Figure 3-30. Check the EEPROM data

Change EEPROM data

T

You can change the specific data stored in the specific address of the
EEPROM.
However, do not use this function except the special case. Careless usage
causes any trouble.

Figure 3-29. EEPROM check function

Check the EEPROM data

T

You can check the specific data stored in the specific address of the
EEPROM.
Input the specific address with hexadecimal code. Use this function in your
analysis usefully.

Figure 3-31. Chan ge the EEPROM data

Adjustment Overview 50

Stylus C41/42/43/44 series Revision B

3.1.15 EEPROM back up data

This function is used when replacing the MAIN board.
Using this function, the data on the curr ently used MAIN bo ard are b acked up, then the

backed up data can be written to the EEPROM on the new MAIN board after
replacement.

Figure 3-33. Replace the defective main board with new one

CHECK

PO INT

1. Choose the “EEPROM backup data” in the Maintenance menu.

This function may fail. If it fails, replace the MAIN board with a
new one, then carry out the specified adjustments in order.

3. The backed up data will b e written to th e EEPROM on the n ew M AIN board.

Figure 3-32. EEPROM backup data

2. The EEPROM data on the current MAIN board are backed up by clicking the
“OK” button. The following message is di splayed when the data backu p operation
is completed. Replace the printer’s MAIN board, then turn the power ON again
and click the “OK” button.

Adjustment Overview 51

Stylus C41/42/43/44 series Revision B

3.1.16 A4 pattern will print

We recommend to use this function to check the repaired product quality in your final
stage of your repair. The following 6 items are printed on the check pattern.

Figure 3-34. A4 Check pattern

CHECK

PO INT

T The check point for the first black and each color solid pattern

(beta pattern 360 x 360dpi normal dot) in the A4 Check pattern
is as follows.

-Any white line is not observed.

-Uneven banding is not observed extremely.

T The check point for the second Nozzle check pattern (120dpi) is

as follows.

-Ink is fired from all nozzles.

-Uneven banding is not observed extremely.

T The check point for the third Alignment pattern is as follows.

-Each vertical line is printed straight.

T If any incorrect printing is observed on the A4 Check pattern,

perform the head cleaning or bi-d adjustment. If the
phenomenon is not improved, replace the printhead or suitable
mechanical parts.

CAUTION

Do not print the A4 Check pattern on the EPSON exclusive paper
such as Photo quality ink jet paper. This check pattern is for the
plain paper. So, use the Plain paper for this check pattern printing.

Adjustment Overview 52

Stylus C41/42/43/44 series Revision B

Figure 3-35. A4 Check pattern

Adjustment Overview 53

MAINTENANCE

CHAPTER

Stylus C41/42/43/44 series Revision B

4.1 Overview

This section provides information to maintain the printer in its optimum condition.

4.1.1 Cleaning

This printer has no mechanical components which require regular cleaning except the
printhead. Therefore, when returning the printer to the user, check the following parts
and perform appropriate cleaning if stain is noticeable.

CAUTION

V Exterior parts

Use a clean soft cloth moistened with water and wipe off any dirt. If the exterior
parts are stained with ink, use a cloth moistened with neutral detergent to wipe it
off.

V Inside the printer

Use a vacuum cleaner to remove any paper dust.

V ASF LD Roller

If paper dust on the surface of ASF LD Roller lowers the friction, set the adhesive
surface of the cleaning sheet included in the med ia to the s urface o f the ASF ro ller
and repeat loading paper from the ASF.

T Never use chemical solvents, such as thinner, benzine, and

acetone to clean the exterior parts of printer like the housing.
These chemicals may deform or deteriorate the components of
the printer.

T Be careful not to damage any components when you clean inside

the printer.

T Do not scratch the surface (coated part) of PF roller assembly.

Use soft brush to wipe off any dusts. Use a soft cloth moistened
with alcohol to remove the ink stain.

T Do not use cleaning sheet included in the media for normal

usage. It may damage the coated surface of PF roller.
If the adhesive surface of the cleaning sheet is set to the ASF LD
roller side and used to clean the ASF LD roller surface, it is no
problem.

4.1.2 Service Maintenance

If print irregularity (missing dot, white line, etc.) has occurred or the printer indicates
“Maintenance Error”, take the following actions to clear the error.

V Head Cleaning:

The printer has a built-in head cleaning function, which is activated by operating
the control panel.
Confirm that the prin ter is in s tand-by st ate (the POW ER indicator is not bl inking),
and hold down the Error Reset SW on the control panel for more than 3 seconds.
The printer starts the cleaning sequence (The POWER indicator blinks during the
cleaning sequence).

V Maintenance Error Clear:

Ink is used for the operations such as cleaning as well as printing. Therefore, the
printer wastes certain amount of ink and drains it into waste ink pad, while
counting the amount of the waste ink. Once the amount of the waste ink reaches
the predetermined limit, the printer indicates “Maintenance Error” and the waste
ink pad should be replaced.

T Overflow Counter Limit:

Overflow Counter (Protection Counter A) >=8350

T Timing for Replacing the Waste Ink Pad:

When the total amount of the waste ink reaches the predetermined limit, the
LED indicates “Maintenance Error”.
Also, during repair servicing, check the ink counter along with the firmware
version, ink counter, select code page, nozzle check pattern on the status
printing sheet. If the ink counter value is close to its limit, notify your
customer and recommend that the waste ink pad be replaced (If the waste ink
pad is not replaced at that time, there is a possibility that “Maintenance Error”
will occur soon after the printer is returned to the customer). Once you have
the confirmation of the customer, replace the waste ink pad.

T Replacement Procedure: “Waste ink pad removal” on page -21
T After the Replacement:

Reset the Overflow Counter (Protection Counter A) : “Protection counter
check” on page -48

Maintenance Overview 55

Stylus C41/42/43/44 series Revision B

4.1.3 Lubrication

The characteristics of the grease have great affects on the mechanical function and
durability, especially does the characteristics about temperature environment. The type
and amount of grease used to lubricate the printer parts are determined based on the
results of internal evaluations. Therefore, be sure to apply the specified type and
amount of grease to the specified part of the printer mechanism during servicing.

CAUTION

No. Lubrication Type/Point Remarks

1

T Never use oil or grease other than those specified in this

manual. Use of different types of oil or grease may damage the
component or give bad influence on the printer function.

T Never apply larger amount of grease than specified in this

manual.

Table 4-1. Specified Lubricants

Type Name EPSON Code Supplier

Grease G-46 1039172 EPSON
Grease G-58 1082176 EPSON

Table 4-2. Lubrication Type/Point

<Lubrication Point>

• Specified area on the Main frame. Refer to
Figure 4-1, "Lubrication point 1".

<Lubrication Type>

•G-58

<Lubrication Amount>

• 100mg x 4 points

• Use a brush to apply it.

• After lubrication, move the CR
unit left or right and smooth out
the grease on the Front frame.

Table 4-2. Lubrication Type/Point

No. Lubrication Type/Point Remarks

<Lubrication Point>

• Specified area on the Front frame. Refer to
Figure 4-2, "Lubrication point 2".

<Lubrication Type>

2

•G-58

<Lubrication Amount>

• F1mm x 200mm

<Lubrication Point>

• Specified area on the Paper eject roll er.
Refer to Figure 4-3, "Lubrication point 3".

<Lubrication Type>

3

•G-46

<Lubrication Amount>

• F1mm x 1mm x 9points

• Use a syringe to apply it.

• After lubrication, move the CR
unit left or right and smooth out
the grease on the Front frame.

• Use a syringe to apply it.

• After lubrication, turn the Paper
eject roller and smooth out the
grease on the Paper eject roller.

Maintenance Overview 56

Stylus C41/42/43/44 series Revision B

G-58

G-58

200mm

Figure 4-2. Lubrication point 2

G-58

Main frame

right side view

Figure 4-1. Lubrication point 1

G-46

Figure 4-3. Lubrication point 3

Maintenance Overview 57

APPENDIX

CHAPTER

Stylus C41/42/43/44 series Revision B

5.1 Electrical Circuits

See the following pages for the electric circuit diagrams below:

V C482MAIN-C : Stylus C41/42 UX series control cir cuit board
V C482MAIN-D : Stylus C41/42P SX series control circuit board
V C482PSH : Power supply circuit board

Appendix Electrical Circuits 59