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CHAPTER 5
5 - 5
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
Possible Cause
Related Parts
Check Method
Corrective Action
Drive belt broken or worn
Gears broken or worn
Scanner button failure
Drive motor failure
Drive belt
Pulley Unit
Button PCB
Motor unit
Trial replacement
Trial replacement
Trial replacement
Trial replacement
Replace the drive belt
Replace the pulley unit
Replace the button PCB
Replace the motor unit
Possible Cause
Related Parts
Check Method
Corrective Action
Motor unit failure
Main PCB failure
Scanning unit failure
Dirt on sliding rod
Reference sheet is
improperly positioned
Motor unirt
Main PCB
Scanning unit
None
Document glass
unit
Trial replacement
Trial replacement
Trial replacement
Visual check
Trial replacement
Replace the motor unit
Replace the main PCB
Replace the scanning unit
Clean the sliding rod
Replace the document glass
unit
C. Scanning Unit Movement Failure
Table 5-3
D. Poor Image Quality
Table 5-4
E. Acoustic Noise
Table 5-5
Possible Cause
Related Parts
Check Method
Corrective Action
Scanning lamp does not light
or blinks
Dirt on document glass
Main PCB failure
CCD PCB failure
Scanning unit
Document glass
Main PCB
Scanning unit
Visual check
Visual check
Trial replacement
Trial replacement
Replace the scanning unit
Clean the document glass
Replace the main PCB
Replace the scanning unit
Содержание CanoScan 9900F
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