Canon CanoScan 9950F Manual de servicio - Página 7

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2. Service Troubleshooting by Symptom

2-1

Service Troubleshooting by Symptom

Unit does not turn the power on

Spontaneously shuts down right

after turned on

Carriage does not operate

Acoustic noise

Scanning lamp does not light up

Blurred image

Solid vertical line

Solid horizontal line

Faulty color reproduction

symptom

Replace AC ADAPTER

or replace

Replace MOTOR ASS'Y

or replace

Eliminate the foreign substance

or replace MOTOR UNIT

or replace

ReplaceCARRIAGE ASS'Y

or replace

Clean PLATEN GLASS ASS'Y

or replace

Clean PLATEN GLASS ASS'Y

or replace CARRIAGE ASS'Y

Check the connection with PC

or replace USB cable

or replace

Replace

Action

MAIN PCB ASS'Y

CARRIAGE ASS'Y

MAIN PCB ASS'Y

CARRIAGE ASS'Y

MAIN PCB ASS'Y

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Remarks