Canon CanoScan 9900F Service Manual download pdf (Page 63)

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2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 5

TROUBLESHOOTING

I. INTRODUCTION ........................ 5-1

A. Initial Check ....................... 5-1

B. Others ................................. 5-1

II. TROUBLESHOOTING FLOWCHART

........................................... 5-2

A. Power LED Failure ............... 5-2

B. Communication Failure ....... 5-3

III. PROBLEM, CAUSE AND

CORRECTIVE ACTION ............... 5-4

A. Power LED Not Lighting....... 5-4

B. Communication Failure ....... 5-4

C. Scanning Unit Movement Failure

........................................... 5-5

D. Poor Image Quality .............. 5-5

E. Acoustic Noise ..................... 5-5

IV. CANON SCANNER TEST ............. 5-6

A. Outline ................................ 5-6

B. Operating Environment ....... 5-6

C. Functions ............................ 5-7

D. Functions Descriptions ....... 5-8

E. Error Message ................... 5-16

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Canon CanoScan 9900F Service Manual Page 63