Canon 8800F - CanoScan - Flatbed Scanner User manual

R2·Confidential
CanoScan 8800F
SERVICE MANUAL
Revision 0
QY8-13BQ-000
CANOSCAN 8800F JP 2168B001AA
CANOSCAN 8800F US 2168B002AA
CANOSCAN 8800F CA 2168B003AA
CANOSCAN 8800F GB 2168B008AA
CANOSCAN 8800F EUM/EMB 2168B009AA
CANOSCAN 8800F AU 2168B011AA
CANOSCAN 8800F ASA 2168B012AA
CANOSCAN 8800F H
K
2168B013AA
CANOSCAN 8800F CN 2168B014AA
CANOSCAN 8800F K
R
2168B016AA

Application
This manual has been issued by Canon Inc. to provide information necessary to self-study techniques, setting-
up, maintenance and repair to technicians who service the target products. This manual covers all locations
where the target products are sold. For this reason, there may be information in this manual that does not apply
to your locality.
Revision
This manual might include technically incorrect descriptions or misprints because the target products may be
improved or changed. For this reason, service information is being published in case of any changes in this
manual. If this manual is having a significant change, in long or in short term, a revised edition will be carried
out.
The following paragraph does not apply to any countries where such provisions are inconsistent with local law.
Trademarks
The product names and company names described in this manual are the registrered trademarks or tradmards of
the individual companies.
Copyright
The copyright of this manual belongs to Canon Inc. Under the copyright law, this manual may not be copied,
reproduced or translated into another language, in whole or in part, without the written consent of Canon Inc.,
always excepting the cases where copying a part of this manual is needed by business necessity.
Copyright c2007 by Canon Inc.
Canon Inc.
Ink Jet Scanner&FAX Quality Assurance Division
3-451 Tsuka
g
oshi, Saiwai-ku, Kawasaki-shi, Kana
g
awa 212-8530, Ja
p
an

This manual is provided into 4 sections providing each necessary information to service the target product.
Part 1: Maintenance
Maintenance and repair related information of the target product Part 3:
Part 2: Technical Reference
Technical matters such as new techniques and FAQ of the target product
Part 3: Parts Catalog
Parts catalog of the target product
Part 4: Appendix
Block diagram and specifications of the target product
CanoScan 8800F Service Manual
Outline
<Outline>

CONTENTS
Part 1: Maintenance
1. Maintenance
1-1 Service Engineer adjustment/Periodic Replacement/Periodic Inspection/Replacement of Consumable
1-2 Customer Maintenance
1-3 Product Life
1-4 Special Tools
1-5 Serial Number Indicating Location
2. Troubleshooting
2-1 Troubleshooting by Symptom
3. Servicing
3-1 Advisory for Replacement of Service Part
3-2 Instruction for Servicing
4. Transport
Part 2: Technical Reference
1. New Features
Part 3: Parts Catalog
Part 4: Appendix
1. Block Diagram
2. Specifications
CanoScan 8800F Service Manual
I. CONTENTS
<CONTENTS>

R2·Confidential
P
art 1
Maintenance

1-1 Service Engineer adjustment/Periodic Replacement/Periodic
Inspection/Replacement of Consumable
1-1-1 Adjustment
1-1-2 Periodic Inspection
1-1-3 Periodic Replacement
1-1-4 Replacement of Consumable
CanoScan 8800F Maintenance
1. Maintenance
ITEM PERIOD PURPOSE TOOL TIME
N/A
ITEM PERIOD PURPOSE TOOL TIME
N/A
ITEM PERIOD PURPOSE TOOL TIME
N/A
ITEM PERIOD PURPOSE TOOL TIME
N/A

1-2 Customer Maintenance
1-3 Product Life
1-3-1 Main Body
The following 1 or 2, which comes earlier
1. Scan Count: 15,000 scans
2. Age of Service: 3 years
1-4 Special Tools
1-5 Serial Number Indicating Location
Back side of the main body
ITEM PERIOD PURPOSE TOOL TIME
N/A
NAME TOOL NUMBER PURPOSE REMARKS
N/A
<1. Maintenance>

2-1 Troubleshooting by Symptom
CanoScan 8800F Maintenance
2. Troubleshootin
g
SYMPTOM
A
CTION REMARKS
MalfunctionUnit does not turn the power on
Spontaneously shuts down right after turned on Replace AC adapter or replace MAIN PCB ASS'Y
Carriage does not operate Replace MOTOR ASS'Y
or replace MAIN PCB ASS'Y
A
coustic noise Eliminate the foreign substance
or replace MOTOR ASS'Y
or replace MAIN PCB ASS'Y
or replace CARRIAGE ASS'Y
Scanning lamp does not light up Replace CARRIAGE ASS'Y
or replace MAIN PCB ASS'Y
Faulty
scanned
image
Blurred image Clean PLATEN GLASS ASS'Y
or replace CARRIAGE ASS'Y
or replace MAIN PCB ASS'Y
Solid vertical line Clean PLATEN GLASS ASS'Y
or replace CARRIAGE ASS'Y
Solid horizontal line Check the connection with PC
or replace USB cable
or replace MAIN PCB ASS'Y
Faulty color reproduction Replace MAIN PCB ASS'Y
<2. Troubleshooting>

3-1 Advisory for Replacement of Service Part (also for disassembly and
assembly)
CanoScan 8800F Maintenance
3. Servicin
g
REPLACING SERVICE
PART NOTE FOR REPLACEMENT*1 ADJUSTMENT /SETTING UP VERIFYING OPERATION
MAIN PCB ASS'Y Disconnect the power cord,leave the unit
about 1 minute (to discharge the stored
charge of the capacitor) and dismount
the part (to prevent MAIN PCB ASS'Y
broken)
Enforce scan operation
CARRIAGE ASS'Y Be careful not to touch mirrors or CCD
PCBs.
Be careful not to put dirt or fingerprint on
the light guide.
Enforce scan operation
PLATEN GLASS ASS'Y
(FE2-0201-000) Be careful not to put dirt or fingerprint on the document glass. Enforce visual inspection
1:Note for entire work
Have a careful look on the wiring arrangement of flexible cable and harness, and connection of connectors. [Refer to 3-2
Instruction for Servicing (1) Wiring arrangement of flexible cable and harness, and connection of connectors]
Be careful not to drop down ferrite core to be broken.
Be careful not to let electrostatic break electric parts down.
Disconnect the power cord, leave the unit about 1 minute (to discharge the stored charge of the capacitor) and dismount the
part (to prevent MAIN PCB ASS'Y broken).
Do not stain inappropriate part with TIMING grease. Do not scratch or damage parts and the unit.
Be careful not to damage or stain external cover.

3-2 Instruction for Servicing
3-2-1 Detaching the front cover
1) Lift the bottom side of the front cover as shown in the picture and detach the cover pulling the upper side
outwards.
2
)
Detach the front face and front cover liftin
g
u
p
the bottom side of the front face.