Canon i900, i905 Service Manual

0 (0)

i900D

SERVICE MANUAL

Canon

i900D

i905D

PIXUS 900PD SERVICE MANUAL

Revision 0

QY8-1394-000

COPYRIGHT©2003 CANON INC. CANON PIXUS 900PD / i900D / i905D 092003 XX 0.00-0

Scope

This manual has been issued by Canon Inc., to provide the service technicians of this product with the information necessary for qualified persons to learn technical theory, installation, maintenance, and repair of products. The manual covers information applicable in all regions where the product is sold. For this reason, it may contain information that is not applicable to your region.

Revision

This manual could include technical inaccuracies or typographical errors due to improvements or changes made to the product. When changes are made to the contents of the manual, Canon will release technical information when necessary. When substantial changes are made to the contents of the manual, Canon will issue a revised edition.

The following do not apply if they do not conform to the laws and regulations of the region where the manual or product is used:

Trademarks

Product and brand names appearing in this manual are registered trademarks or trademarks of the respective holders.

Copyright

All rights reserved. No parts of this manual may be reproduced in any form or by any means or translated into another language without the written permission of Canon Inc., except in the case of internal business use.

Copyright 2003 by Canon Inc. CANON INC.

Inkjet Products Quality Assurance Div.

16-1, Shimonoge 3-chome, Takatsu-ku, Kawasaki, Kanagawa 213-8512, Japan

I.MANUAL OUTLINE

This manual consists of the following three parts to provide information necessary to service the i900D/i905D:

Part 1: Maintenance

Information on maintenance and troubleshooting of the i900D/i905D

Part 2: Technical Reference

New technology and technical information such as FAQ’s (Frequently Asked Questions) of the i900D/i905D

Part 3: Appendix

Block diagrams and pin layouts of the i900D/i905D

Reference:

This manual does not provide sufficient information of disassembly and reassembly procedures. Refer to the graphics in the separate Parts Catalog.

II.TABLE OF CONTENTS

Page Part 1: MAINTENANCE

1-1 1. MAINTENANCE

1.1Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement Consumables by Service Engineer

1-2

1.2

Customer Maintenance

1-3

1.3

Product Life

 

1.4

Special Tools

 

1.5

Serial Number Location

1-4

2. LIST OF ERROR DISPLAY / INDICATION

 

2.1

Operator Call Errors (by LED Blinking in Orange)

1-5

2.2

Service Call Errors

1-6

2.3

Warnings

1-7

2.4

Troubleshooting by Symptom

1-8

3. REPAIR

3.1Notes on Service Part Replacement (and Disassembling / Reassembling)

1-10

3.2

Special Notes on Repair Servicing

1-12

3.3

Adjustment / Settings

 

 

(1)

Paper feed motor adjustment

 

 

(2)

Gear phase adjustment

 

 

(3)

Grease application

 

 

(4)

Waste ink counter setting

 

 

(5)

User mode

 

 

(6)

Service mode

 

 

(7)

Flash ROM upgrade

1-20

3.4

Verification Items

 

 

(1)

Service test print

 

 

(2)

EEPROM information print

1-22 4. PRINTER TRANSPORTATION METHOD

Part 2: TECHNICAL REFERENCE

2-1

1.

NEW TECHNOLOGIES

2-4

2.

CLEANING MODE AND AMOUNT OF INK PURGED

2-5

3.

PRINT MODE

2-7

4.

PHOTO DIRECT PRINT FUNCTION

 

 

4.1

Host PC Memory Card Access Function with the Memory Card Startup Utility

2-8

 

4.2

Memory Card Direct Printing Function

2-10

 

4.3

File Search

2-11

 

4.4

File Sort

 

 

4.5

Date Print

2-12

 

4.6

Bubble Jet Direct Function

2-14

 

4.7

PictBridge Function

2-15

 

4.8

Exclusive Processes

2-16

 

4.9

LCD Viewer

2-17

 

4.10

Card Slot-related Operations and Display

2-18

 

4.11

DPOF Settings in the Memory Card Direct Printing Function

2-19

 

4.12

Print Layout (Details)

2-21

 

4.13

Date Print Specifications

2-22

 

4-14

Photo Number Printing Specifications

2-23

5.

FAQ (Specific Problems and Solutions)

 

Part 3:

APPENDIX

3-1

1.

BLOCK DIAGRAM

3-2

2.

CONNECTOR LOCATION AND PIN LAYOUT

 

 

2.1

Logic Board Ass’y

3-6

 

2.2

USB I/F Board (DCC Cover Unit) for Camera Direct Printing

3-7

 

2.3

Operation Panel Board

3-8

 

2.4

Memory Card Board

3-12

 

2.5

Carriage Board (Print Head Connector)

Part 1

MAINTENANCE

1.MAINTENANCE

1.1Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement Consumables by Service Engineer

(1)Adjustment

Adjustment

Timing

Purpose

Tool

Approx.

time

 

 

 

 

EEPROM

At logic board ass’y replacement

To initialize settings other than the

None.

1 min.

initialization

 

following:

 

 

(EEPROM settings)

 

- USB serial number

 

 

 

 

- Destination setting

 

 

 

 

(The language to be displayed on

 

 

 

 

the LCD viewer is set to the default

 

 

 

 

setting for each destination.)

 

 

 

 

- Waste ink counter

 

 

 

 

- Media sensor correction value

 

 

 

 

- CD-R correction value

 

 

Destination settings

At logic board ass’y replacement

To set the destination.

None.

1 min.

(EEPROM settings)

 

 

 

 

LCD viewer

At logic board ass’y replacement

To set the language to be displayed

None.

1 min.

language settings

 

on the LCD viewer.

 

 

Waste ink counter

- At bottom case unit

To reset the waste ink counter.

None.

1 min.

resetting

replacement

 

 

 

 

- At ink absorber (QC1-2232 /

 

 

 

 

2233 / 2234 / 2235 / 2236)

 

 

 

 

replacement

 

 

 

Media sensor

- At logic board ass’y

To correct the media sensor.

Calibration media

2 min.

correction*1

replacement

 

kit (QY9-0064)

 

(EEPROM settings)

- At sheet feeder unit

 

 

 

 

replacement

 

 

 

CD-R sensor /

- At logic board ass’y

To correct the CD-R and automatic

None.

1 min.

automatic print head

replacement

print head alignment sensor.

(Correction

 

alignment sensor

- At carriage unit replacement

 

performed

 

correction

 

 

through service

 

(EEPROM settings)

 

 

test print)

 

Print head alignment

- At print head replacement

To ensure accurate dot placement.

- None.

2 min.

 

- At logic board ass’y

 

(printer buttons)

 

 

replacement

 

- Computer

 

 

 

 

(settings via the

 

 

 

 

printer driver)

 

Paper feed motor

At paper feed motor unit

To adjust the belt tension. (Position

None.

2 min.

position

replacement

the paper feed motor so that the belt

 

 

adjustment*2

 

is stretched tight.)

 

 

Grease application

- At carriage unit replacement

- To maintain sliding properties of

- FLOIL

2 min.

 

- At paper guide flapper ass’y

the carriage, carriage shaft, paper

KG-107A

 

 

(QL2-0341) replacement

guide flapper, and lift cam shaft.

(QY9-0057)

 

 

- At lift cam base’s (QL2-0340)

- To protect the lift cam base gear.

- MOLYKOTE

 

 

gear replacement

 

PG641

 

 

- At lift cam shaft unit

 

(CK-0562)

 

 

(QM2-0593) replacement

 

 

 

Note: DO NOT loosen the red screws on both sides of the main chassis, securing the carriage shaft positioning. *1: Media sensor correction

This operation adjusts the correction value of the media sensor, installed in the sheet feeder unit, to the EEPROM of the logic board ass’y. The adjustment is required when the sheet feeder unit or the logic board ass’y is replaced, and values are automatically determined via use of calibration media kit (QY9-0064: 10 sheet of reference plain paper and one sheet of reference white PET paper).

*2: Red screws of paper feed motor

The red screws securing the paper feed motor may be loosened only at replacement of the paper feed motor unit.

1 - 1

(2)Periodic maintenance

No periodic maintenance is necessary.

(3)Periodic replacement parts

There are no parts in this printer that require periodic replacement by a service engineer.

(4)Replacement consumables

There are no consumables that require replacement by a service engineer.

1.2Customer Maintenance

Adjustment

Timing

Purpose

Tool

Approx.

time

 

 

 

 

Print head alignment

At print head

To ensure accurate

- Printer buttons

3 min.

 

replacement.

dot placement.

- Computer (settings

 

 

 

 

via the printer

 

 

 

 

driver)

 

Print head cleaning

When print quality is

To improve nozzle

- Printer buttons

30 sec. to

 

not satisfying.

conditions.

- Computer (settings

1 min.

 

 

 

via the printer

 

 

 

 

driver)

 

Print head deep cleaning

When print quality is

To improve nozzle

- Printer buttons

1 to 1.5

 

not satisfying, and

conditions.

- Computer (settings

min.

 

not improved by

 

via the printer

 

 

print head cleaning.

 

driver)

 

Ink tank replacement

When an ink tank

 

 

2 min.

 

becomes empty.

-----

-----

 

 

(No ink error)

 

 

 

Paper feed roller

When paper does not

To clean the paper

Printer buttons

2 min.

cleaning

feed properly.

feed rollers.

 

 

CD-R print position

At CD-R printing,

To correct CD-R

Computer (application

5 min.

adjustment

when necessary

print position

software)

 

LCD viewer contrast

When adjusting the

To adjust the

Printer buttons

1 min.

adjustment

contrast

contrast

 

 

1 - 2

1.3Product Life

(1)Printer

The value (i) or (ii), whichever comes first.

(i)5,000 pages of printing

- Black:

1,500 pages

(A4,

1,500 character pattern)

 

- Color:

3,500 pages

(A4,

7.5% duty per color pattern:

1,300 pages

 

 

A4, 30% duty per color pattern:

400 pages

 

 

Postcard, 30% duty per color pattern:

800 pages

 

 

L-size, 30% duty per color pattern:

1,000 pages)

(ii)5 years of use

(2)Print head

5,000 pages (in the above print modes)

(3)Ink tank

BCI-6BK:

540 pages (JEIDA standard pattern J1, plain paper, standard mode)

 

520 pages (1,500 character pattern in black printing, plain paper, standard mode)

 

540 pages (ISO JIS-SCID No. 5 pattern, plain paper, standard mode)

BCI-6C:

780 pages (ISO JIS-SCID No. 5 pattern, plain paper, standard mode)

BCI-6M:

580 pages (ISO JIS-SCID No. 5 pattern, plain paper, standard mode)

BCI-6Y:

360 pages (ISO JIS-SCID No. 5 pattern, plain paper, standard mode)

BCI-6PC:

410 pages (ISO JIS-SCID No. 5 pattern, plain paper, standard mode)

BCI-6PM:

260 pages (ISO JIS-SCID No. 5 pattern, plain paper, standard mode)

1.4 Special Tools

Name

Tool No.

Purpose

Remarks

MOLYKOTE PG641

CK-0562-000

To be applied to the lift cam base’s

In common with

 

 

upper gear and the sliding portion

conventional models

 

 

of the lift cam shaft

 

FLOIL KG-107A

QY9-0057-000

To be applied to the sliding

In common with

 

 

portions of the carriage, carriage

conventional models

 

 

shaft, and the paper guide flapper

 

GREASE EU1

QY9-0037-000

To be applied to the carriage shaft

In common with

 

 

bearing

conventional models

Calibration media kit

QY9-0064-000

To correct the media sensor

In common with

 

 

 

conventional models

1.5Serial Number Location

Visible when the access cover is open.

1 - 3

2.LIST OF ERROR DISPLAY / INDICATION

Errors are indicated by the LED, and warnings are displayed on the monitor of the computer connected to the printer.

(1)Errors are indicated by the number of times the LED blinks.

(2)Errors are indicated in the LCD viewer on the operation panel.

(3)Warnings are displayed in the Status Monitor of the printer driver.

2.1Operator Call Errors (by LED Blinking in Orange)

LED

Error

Solution

Remarks

blinking

in orange

 

 

 

2 times

No paper. (ASF) [1000]

Set the paper in the ASF, and press the

 

 

No CD-R tray. [1001]*1

Resume button.

 

 

Set the CD-R tray, and press the Resume

 

 

 

button.

 

 

No paper in the photo paper tray.

Set the paper in the photo paper tray, and

 

 

[1004]

press the Resume button.

 

3 times

Paper jam. [1300]

Remove the jammed paper, and press the

 

 

No ink.

Resume button.

 

4 times

Replace the empty ink tank(s), or press the

Pressing the Resume

 

[1601/1602/1611/1612/1613/1634/

Resume button.

button will exit the

 

1635]

 

error without ink tank

 

 

 

replacement, however,

 

 

 

ink may run out during

 

 

 

printing.

5 times

The print head is not installed

Install the print head properly, and close the

 

 

[1401], or it is not properly

front cover.

 

 

installed (EEPROM data of the

Or, with the print head installed, turn the

 

 

print head is faulty) [1403/1405].

printer off and on.

 

6 times*1

No CD-R tray feeder (during

Set the CD-R tray and tray feeder properly,

 

 

CD-R printing). [1850/1855]

and press the Resume button.

 

 

Presence of the CD-R tray feeder

Remove the CD-R tray feeder, and press the

 

 

(during paper printing).

Resume button.

 

 

[1851/1856]

 

 

7 times*1

No CD-R or DVD-R. [1002]

After setting a CD-R or DVD-R in the tray,

 

 

 

set the tray in the tray feeder, and press the

 

 

 

Resume button.

 

8 times

Warning: The waste ink absorber

Pressing the Resume button will exit the

The service call error,

 

becomes almost full (approx. 95%

error, and enable printing.

indicating the waste

 

of the maximum capacity). [1700]

In repair servicing, replace the bottom case

ink absorber is full, is

 

 

unit (QM2-0663), or 5-item set of the ink

likely to occur soon.

 

 

absorbers

 

 

 

(QC1-2232/2233/2234/2235/2236).

 

9 times

The connected digital camera or

After removing the cable between the camera

When connected to a

 

digital video camera does not

and the printer, press the Resume button, and

Direct Print supported

 

support Camera Direct Printing.

re-connect the cable.

camera, the green LED

 

[2001]

 

blinks 2 times.

11 times

Automatic print head alignment

Press the Resume button, and after

 

 

failure. [2500]

confirming the following, perform print head

 

 

 

alignment again:

 

-Set an appropriate type and size of paper (plain paper, A4 or letter).

-Check that the nozzle check pattern is properly printed (all ink ejected, no faint printing)

-Check that the paper output slot is not exposed to light.

*1: Only for the model supporting CD-R printing (i905D only)

1 - 4

2.2Service Call Errors

-LED Blinking in Orange and Green Alternately, or Lit in Orange

-LCD viewer displaying error codes

LED

 

 

alternate blinking

Error

Solution

in orange and

(Replacement of listed parts, which are likely to be faulty)

 

green

 

 

2 times

Carriage error [5100]

- Carriage unit (QM2-0662)

 

 

- Timing slit strip film (QA4-1053)

 

 

- Logic board ass’y (QM2-0813/QM2-0814)*1

 

 

- Carriage motor (QK1-0175)

3 times

Paper feed error [6000]

- Timing sensor unit (QM2-0596)

 

 

- Timing slit disk film (QC1-2511)

 

 

- Feed roller ass’y (QF4-0155)

 

 

- Platen unit (QM2-0670/QM2-0675)

 

 

- Logic board ass’y (QM2-0813/QM2-0814)*1

 

 

- Paper feed motor (QK1-0224)

4 times

Purge unit error [5C00]

- Purge unit (QM2-0656)

 

 

- Logic board ass’y (QM2-0813/QM2-0814)*1

6 times

Internal temperature

- Logic board ass’y (QM2-0813/QM2-0814)*1

 

error [5400]

 

7 times

Waste ink absorber full

- Ink absorbers (QC1-2232/2233/2234/2235/2236)

 

[5B00]

- Bottom case unit (QM2-0663)*3

8 times

Print head temperature

- Print head (QY6-0050)

 

rise error [5200]

- Logic board ass’y (QM2-0813/QM2-0814)*1

9 times

EEPROM error [6800]

- Logic board ass’y (QM2-0766/QM2-0767)*1

10 times*2

Carriage lift mechanism

- Lift cam shaft unit (QM2-0593)

 

error [5110]

- Photo interrupter (WG8-5571)

 

 

- Sheet feeder unit (QM2-0589)

 

 

- Logic board ass’y (QM2-0813/QM2-0814)*1

12 times

Media sensor error

- Sheet feeder unit (QM2-0589)

 

[8000]

 

13 times

USB Host VBUS

- Logic board ass’y (QM2-0813/QM2-0814)*1

 

overcurrent [9000]

 

15 times

Other hardware error

- Logic board ass’y (QM2-0813/QM2-0814)*1

 

[6500]

 

Continuous

Flash ROM error

- Logic board ass’y (QM2-0813/QM2-0814)*1

alternate blinking

 

 

Lights in orange

RAM error

- Logic board ass’y (QM2-0813/QM2-0814)*1

 

 

 

*1: Before replacement of the logic board ass’y, check the waste ink amount (by service test print or EEPROM information print). If the waste ink amount is 7% or more, also replace the bottom case unit (QM2-0586) or the 5-item set of the ink absorbers (QC1-2232/2233/2234/2235/2236) when replacing the logic board ass’y. See Section 3.3. Adjustment / Settings, (6) Service mode, for details.

*2: Only for models supporting CD-R printing (i905D only).

*3: Reset the waste ink counter when replacing the bottom case unit (QM2-0586). See Section 3.3. Adjustment / Settings, (6) Service mode, for details.

1 - 5

Printer (LCD viewer displaying)
Displayed warning
Low ink of 6BK, 6C, 6M, 6Y, 6PC or 6PM (at detection of no liquid ink remaining)
Print head temperature rise warning
Protection of excess rise of the print head temperature
Presence of the CD-R tray feeder*2

2.3Warnings

Remarks

If the print head temperature is high when the front cover is opened, the warning is displayed*1. When the print head temperature falls, the warning is released.

If the print head temperature exceeds the specified limit, a Wait is inserted during printing,

If the CD-R tray feeder is attached when the front cover is opened, the warning is displayed.*1 When the CD-R tray feeder is removed, and the front cover is closed, the warning is released.

*1: If the warning is displayed, the carriage does not move to the ink tank replacement position when the front cover is opened.

*2: Only for models supporting CD-R printing (i905D only).

1 - 6

2.4 Troubleshooting by Symptom

 

Symptom

Solution

Remarks

Faulty

The power does not turn on.

Replace the

 

The power turns off immediately

- AC adapter, or

 

 

*1

 

after power-on.

- logic board ass’y .

 

operation

 

The print head is not recognized.

Remove and re-install the print head, or replace the

 

The print head does not move to

- print head, or

 

the home position.

- logic board ass’y*1.

 

A strange noise occurs.

Remove foreign material, or attach a displaced part if

 

 

 

 

 

any.

 

 

Printing stops mid-way.

Replace the logic board ass’y*1.

 

Paper

Multiple sheets feed.

Replace the

 

 

- sheet feeder unit, or

 

 

- photo paper tray.

 

feed

 

 

Paper does not feed.

Remove foreign material, or replace the

 

problems

 

- sheet feeder unit, or

 

 

- photo paper tray.

 

Paper feeds at an angle.

Remove foreign material, adjust the paper guide, or

 

 

replace the

 

 

 

 

 

 

- sheet feeder unit, or

 

 

 

- photo paper tray.

 

Unsatisfactory

No printing, or no color ejected.

Replace the

 

 

- ink tank,

 

 

- print head*2,

 

 

- logic board ass’y*1, or

 

Printing is faint, or white lines

- purge unit.

 

Remove and re-install the print head, or replace the

 

print

 

appear on printouts even after

- ink tank,

 

print head cleaning.

- print head*2,

 

quality

 

Line(s) not included in the print

- purge unit, or

 

data appears on printouts.

- logic board ass’y*1.

 

 

Paper gets smeared.

Feed several sheets of paper, or clean the paper path with

 

 

 

cotton swab or cloth.

 

 

A part of a line is missing on

Replace the

 

 

printouts.

- ink tank, or

 

 

 

- print head*2.

 

 

Color hue is incorrect.

Replace the

 

 

 

- ink tank, or

 

 

 

- print head*2, or

 

 

 

correct the media sensor.

 

 

Printing is incorrect.

Replace the logic board ass’y*1.

 

 

No ejection of black ink.

Replace the

 

 

 

- ink tank, or

 

 

 

- print head*2.

 

 

Graphic or text is enlarged on

When enlarged in the carriage movement direction, clean

 

 

printouts.

grease or oil off the timing slit strip film, or replace the

 

 

 

- timing slit strip film,

 

 

 

- carriage unit, or

 

 

 

- logic board ass’y*1.

 

 

 

When enlarged in the paper feed direction, clean grease

 

 

 

or oil off the timing slit strip film, or replace the

 

 

 

- timing slit disk film,

 

 

 

- timing sensor unit, or

 

 

 

- logic board ass’y*1.

 

*1: Before replacement of the logic board ass’y, check the waste ink amount (by service test print or EEPROM information print). If the waste ink amount is 7% or more, also replace the bottom case unit (QM2-0663) or the 5-item set of the ink absorbers (QC1-2232/2233/2234/2235/2236) when replacing the logic board ass’y. See Section 3.3. Adjustment / Settings, (6) Service mode, for details.

*2: Replace the print head only after the print head deep cleaning is performed 2 times, and the problem persists.

1 - 7

3.REPAIR

3.1Notes on Service Part Replacement (and Disassembling / Reassembling)

Service part

Notes on replacement*1

 

 

Adjustment / settings

Operation check

 

 

 

After replacement:

 

Logic board ass’y

- Before removal of the

 

- EEPROM

(QM2-0813/0814)

logic board ass’y, remove

1.

Initialize the EEPROM.

information print

 

the power cord, and allow

2.

Reset the waste ink

- Service test print

 

for approx. 1 minute (for

 

 

counter.

- Printing via USB

 

discharge of capacitor’s

3.

Set the destination in

connection

 

accumulated charges), to

 

 

the EEPROM.

- Direct printing

 

prevent damages to the

 

4. Set the LCD viewer’s

from a digital

 

logic board ass’y.

 

 

language.

camera

 

- Before replacement,

5.

Correct the media

 

 

check the waste ink

 

 

sensor.

 

 

amount (by service test

6.

Correct the CD-R and

 

 

print or EEPROM

 

 

automatic print head

 

 

information print). If the

 

 

alignment sensor.

 

 

waste ink amount is 7%

 

For details of 1 to 5, see

 

 

or more, also replace the

 

3.3. Adjustment / Settings,

 

 

bottom case unit or the

 

(6) Service mode.

 

 

ink absorbers when

 

 

 

 

 

replacing the logic board

7.

Perform the print head

 

 

ass’y. See 3.3. Adjustment

 

 

alignment in the user

 

 

/ Settings, (6) Service

 

 

mode.

 

 

mode, for details.

 

 

 

 

Bottom case unit

 

 

After replacement:

- Service test print

(QM2-0663)

 

1.

Reset the waste ink

 

Ink absorber

 

 

 

counter. See 3.3.

 

(QC1-2232/2233/

 

 

 

Adjustment / Settings,

 

2234/2235/2236)

 

 

 

(6) Service mode.

 

Sheet feeder unit

 

 

After replacement:

- Service test print

(QM2-0589)

 

1.

Correct the media

(Confirm media

 

 

 

 

sensor. See 3.3.

sensor correction.)

 

 

 

 

Adjustment / Settings,

 

 

 

 

 

(6) Service mode.

 

 

 

 

 

 

Carriage unit

 

 

At replacement:

- Service test print

(QM2-0662)

 

1.

Apply grease to the

(Confirm CD-R

 

 

 

 

sliding portions. See

and automatic print

 

 

 

 

3.3. Adjustment /

head alignment

 

 

 

 

Settings, (3) Grease

sensor correction.)

 

 

 

 

application.

 

 

 

 

After replacement:

 

 

 

1.

Correct the CD-R and

 

 

 

 

 

automatic print head

 

 

 

 

 

alignment sensor. See

 

 

 

 

 

3.3. Adjustment /

 

 

 

 

 

Settings, (6) Service

 

 

 

 

 

mode.

 

 

 

2.

Perform the print head

 

 

 

 

 

alignment in the user

 

 

 

 

 

mode.

 

Paper feed motor

- The red screws securing

 

At replacement:

 

(QK1-0224)

the paper feed motor are

1.

Adjust the paper feed

 

 

allowed to be loosened.

 

 

motor. See 3.3.

 

 

(DO NOT loosen any

 

 

Adjustment / Settings,

 

 

other red screws.)

 

 

(1) Paper feed motor

 

 

 

 

 

adjustment.

 

1 - 8

(Notes on Service Part Replacement and Disassembling / Reassembling - cont’d-)

 

Service part

Notes on replacement*1

Adjustment / settings

Operation check

 

 

 

At replacement:

 

 

Lift cam shaft unit

 

- Service test print

 

(QM2-0593)

 

1. Apply grease to the

 

 

 

 

sliding portions. See

 

 

 

 

3.3. Adjustment /

 

 

 

 

Settings, (3) Grease

 

 

 

 

application.

 

 

 

 

2. Adjust the phase of the

 

 

 

 

lift shaft gear

 

 

 

 

(QC1-2297). See 3.3.

 

 

 

 

Adjustment / Settings,

 

 

 

 

(3) Grease application.

 

 

Timing slit strip film

- Upon contact with the

After replacement:

- Service test print

 

(QA4-1053)

film, wipe the film with

1. Perform the print head

 

 

 

ethanol.

alignment in the user

 

 

 

- Confirm no grease is on

mode.

 

 

 

the film. (Wipe off any

 

 

 

Timing slit disk film

 

 

 

grease thoroughly with

 

 

 

(QC1-2511)

 

 

 

ethanol.)

 

 

 

 

 

 

 

 

- Do not bend the film.

 

 

 

Print head

 

After replacement:

- Service test print

 

(QY6-0050)

 

1. Perform the print head

 

 

 

 

alignment in the user

 

 

 

 

mode.

 

*1: General notes:

 

 

 

-Make sure that the flexible cables and wires in the harness are in the proper position and connected correctly. See 3.2. Special Notes on Repair Servicing, (1) Flexible cable and harness wiring, connection, for details.

-Do not drop the ferrite core, which may cause damage.

-Protect electrical parts from damage due to static electricity.

-Before removing a unit, after removing the power cord, allow the printer to sit for approx. 1 minute (for capacitor discharging to protect the logic board ass’y from damages).

-Do not touch the timing slit strip film and timing slit disk film. No grease or abrasion is allowed.

-Protect the units from soiled with ink.

-Protect the housing from scratches.

-Exercise caution with the red screws, as follows:

i.The red screws of paper feed motor may be loosened only at replacement of the paper feed motor unit (DO NOT loosen them in other cases).

ii.DO NOT loosen the red screws on both sides of the main chassis, securing the carriage shaft positioning (they are not adjustable in servicing).

1 - 9

Canon i900, i905 Service Manual

3.2Special Notes on Repair Servicing

(1)Flexible cable and harness wiring, connection

Use caution with the flexible cable and harness wiring. Improper wiring or connection may cause line breakage, possibly leading to ignition or emission of smoke.

(I)

(II)

(III)

(I)DSC direct connector harness wiring

DSC direct connector

Ground line

1 - 10

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