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©
1999 CANON INC. CANON DADF-B1 REV.0 APR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5
TROUBLESHOOTING
I. STANDARDS AND ADJUST-
MENTS.......................................5-1
A. Mechanical System ...............5-1
B. Electrical System ...................5-4
II. TROUBLESHOOTING................5-9
A. Troubleshooting
Malfunctions ........................5-10
III. ARRANGEMENT OF THE ELEC-
TRICAL PARTS .......................5-12
A. Motors, Solenoids, and
Sensors ...............................5-12
B. PCBs ...................................5-14
IV. VARIABLE RESISTORS (VR),
LIGHT-EMITTING DIODES, AND
CHECK PINS BY PCB .............5-15
A. ADF Controller PCB ............5-15
B. Sensor PCBs.......................5-16
C. Indicator PCB ......................5-18
V. SERVICE MODE AND DIP
SWITCH ...................................5-19
A. Outline .................................5-19
B. Service Mode.......................5-20
C. Using the DIP Switch...........5-28
VI. SELF DIAGNOSIS....................5-32
A. ADF Self Diagnosis .............5-32
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