Canon CanoScan 9950F User manual

CanoScan 9950F

SERVICE MANUAL

REVISION 0

JY8-1323-000

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.

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.

Canon Inc.

Ink Jet Scanner Quality Assurance Division

5-1, Hakusan 7-Chome, Toride-City, Ibaraki 302-8501, Japan

I. Outline

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 2: Technical references

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 diagrams and specifications of the target product

II. Content

Page Part 1: Maintenance

1 - 1 1. Maintenance

1 - 1 1-1 Service Engineer adjustment/Periodic Replacement/Periodic Inspection/Replacement of

Consumable

1 – 1 1-2 Customer Maintenance

1 – 1 1-3 Product Life

1 – 1 1-4 Special Tools

1 – 1 1-5 Serial Number Indicating Location

1 – 2 2. Service Troubleshooting by Symptom

1 – 2 2-1 Service Troubleshooting by Symptom

1 – 3 3. Servicing

1 – 3 3-1 Advisory for Replacement of Service Part

1 – 4 3-2 Instruction for Servicing

(1) Mounting Carriage Unt

(2) Mounting Button Circuit Board

(3) Grease Applying Position

1 – 6 4. Canon Scanner Test

1 –12 5. TransPort

Page Part 2: Technical Reference

2 – 1 1. New Features

2 – 2 2. Product FAQ

Page Part 3: Parts Catalog

3 – 1 Figure 1 Cable

3 – 3 Figure 2 MAIN BODY

Page Part 4: Appendix

4 – 1 1. Block Diagram

4 – 2 2. Specifications

Part 1

Maintenance

1. Maintenance

1-1 Service Engineer adjustment/Periodic Replacement/Periodic

Inspection/Replacement of Consumable

(1) Adjustment

item period purpose tool time

Apply grease Replacing MOTORUNIT

Apply grease to Motor

gear

MOLYKOTE

EM-50L

(HY9-0007)

Appro

x. 2

min

(2) Periodic Inspection

item period purpose tool Time

N/A

(3) Periodic Replacement

item period purpose tool Time

N/A

(4) Replacement of Consumable

item period purpose tool Time

N/A

1-2 Customer Maintenance

item period purpose tool Time

N/A

1-3 Product Life

(1) Main Body

Scan Count:30,000 scan

1-4 Special Tools

Name Tool Number Purpose remarks

MOLYKOTE

EM-50L HY9-0007-000 Apply to Motor gear sliding part Diverted from

precedent

model

1-5 Serial Number Indicating Location

Back side of the main doby

1 - 1

2. Service Troubleshooting by Symptom

2-1 Service Troubleshooting by Symptom

symptom Action Remarks

Unit 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

Acoustic noise Eliminate the foreign substance

or replace MOTOR UNIT

or replace MAIN PCB ASS’Y

or replace CARRIAGE ASS’Y

Malfunction

Scanning lamp does not light up ReplaceCARRIAGE ASS’Y

or replace MAIN PCB ASS’Y

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 scanned image

Faulty color reproduction Replace MAIN PCB ASS’Y

1 - 2

3. Servicing

3-1 Advisory for Replacement of Service Part (also for disassembly and assembly)

Replacing Service Part Note for replacement*1 Adjustment

/Setting up Verifying operation

MAIN PCB ASS’Y

(FE2-0205-000) Disconnectthepower

cord,leavetheunitabout1

minute(to discharge the

stored charge of the

capacitor) and

dismount the part (to

prevent MAINPCBASS’Y

broken)

Enforce

scan operation

CARRIAGE ASS’Y

(FE2-0206-000) Be careful not to touch

mirrors or CCD PCBs. 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 MAINPCBASS’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.

1 - 3

3-2 Instruction for Servicing

1) Mounting Carriage unit

When Carriage unit is being mounted, be careful definitely not to touch CCD nor Lamp.

2) Mounting Button circuit board

Ferrite core is placed at the end of the Button circuit board. When Button circuit board is being

mounted, push Ferrite core toward backside of main body and then mount Button circuit board.

1 - 4

3) Grease applying position

Part Position Grease/Oil Dose

MOTOR ASS’Y 1 Motor gear sliding part MOLYCOTE EM-50L 1/2 rice-grain

amount

Note: 1 rice-grain amount : 9 - 18mg

1 - 5

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