Canon PC960 Specifications download pdf (Page 352)

CHAPTER 11 TROUBLESHOOTING

COPYRIGHT

©

1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

11-87

Code Cause Description

• The main motor (M1) is fault.

• The DC controller PCB is faulty.

• The composite power supply PCB is

faulty.

• The DC controller PCB is faulty.

• The scanner home position sensor

(PS1) is faulty.

• The scanner/lens drive motor (M2)

is faulty.

• The DC controller PCB is faulty.

• The lens home position sensor

(PS2) is faulty.

• The scanner/lens drive motor (M2)

is faulty.

• The lens cable is faulty.

• The DC controller PCB is faulty.

• The scanning lamp (LA1) is faulty.

• The DC controller PCB is faulty.

• The composite power supply PCB is

faulty.

• The DC controller PCB is faulty.

• The composite power supply PCB is

faulty.

• The frequency of the power supply

is faulty.

• The composite power supply PCB is

faulty.

• Data communication between the

copier and the ADF (faulty).

• The DC controller PCB is faulty.

• The composite power supply PCB is

faulty.

• The rotation of the main motor deviates

(indicated by MLOCK=0) for 1 sec or

more while the main motor drive signal

(MMD=1) is being generated.

• The actual output value of the compos-

ite power supply high voltage is differ-

ent from the setting value twice in

succession.

• The scanner home position is not

detected within 10 sec after the scanner

has turned on.

• The scanner does not leave the home

position after it has turned on.

• The lens hoe position is not detected

after the lens has moved the maximum

travel distance.

• The lens does not leave the home

position after it has turned on.

• The lamp ON detection signal is not

detected for 1 sec or more in the

presence of the scanning lamp On

signal.

• The lamp ON detection signal is

detected for 1 sec or more in the

absence of the scanning lamp ON

signal.

• A fault in the communication between

DC controller PCB and composite

power supply PCB is detected.

• The interval between zero-cross signals

is in excess of the allowed interval.

• The communication with the copier is

interrupted for 5 sec or more; the

communication is monitored at all

times.

• During a copying run, the +24 V power

deviates from the control value by

±20%.

The keys on the

control panel

are locked

without error

code indication.

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