Canon F91-4421 Service Manual - Page 5

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CHAPTER 3 : MECHANICAL SYSTEM
I.
PARTS REPLACEMENT .............. 3-1
A. Precautions ......................... 3-1
II. EXTERNALS .............................. 3-2
A. Removing the Document Cover
........................................... 3-2
B. Removing the Top Cover and
Document Glass Assembly ... 3-3
III. PCBs ......................................... 3-4
CHAPTER 4 : MAINTENANCE AND SERVICING
I.
PERIODICAL REPLACEMENT
PARTS ....................................... 4-1
II. CONSUMABLE PARTS
DURABILITY .............................. 4-1
CHAPTER 5 : TROUBLESHOOTING
I.
INTRODUCTION ......................... 5-1
A. Initial Check ....................... 5-1
B. Others ................................. 5-1
II. TROUBLESHOOTING FLOWCHART
........................................... 5-2
A. Power ON Failure

Troubleshooting Flowchart .. 5-2

B. Communication Failure
Troubleshooting Flowchart .. 5-3
III. PROBLEM, CAUSE AND
CORRECTIVE ACTION ............... 5-4
FIGURE 001 .............................. 6-2
CHAPTER 6 : PARTS CATALOG
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COPYRIGHT
2000 CANON INC. CANOSCAN FB1210U REV.0 APR. 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
A. Removing the Main PCB ...... 3-4
B. Removing the Button PCB ... 3-6
IV. OPTICAL SYSTEM ..................... 3-8
A. Removing the Carriage Assembly
........................................... 3-8
B. Removing the Motor Assembly
......................................... 3-14
III. PERIODICAL SERVICING ........... 4-1
IV. SPECIAL TOOLS ........................ 4-1
V.
SOLVENTS AND LUBRICANTS .... 4-1
A. Power LED Not Lighting ....... 5-4
B. Communication Failure ....... 5-4
C. Carriage Movement Failure .. 5-5
D. Poor Image Quality .............. 5-5
E. Noise Generated .................. 5-5
IV. CANON SCANNER TEST ............. 5-6
A. Outline ................................ 5-6
B. Operating Environment ....... 5-6
C. Functions ............................ 5-6
D. Functions Descriptions ....... 5-7
E. Error Message ................... 5-15
FIGURE 100 .............................. 6-4