COPYRIGHT
©
1998 CANON INC. CANON NP7161/NP7160 REV.0 AUG. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
10–101
CHAPTER 10 TROUBLESHOOTING
• IC114 (IPC) on the DC controller PCB
cannot be initialized at power -on.
• An IPC communication error has been
detected twice or more within 1 sec at
power-on.
• A communication error with the ADF
controller PCB cannot be cleared.
• A condition in which a response from the
Remote Diagnostic Device II cannot be
received occurred three times
continuously.
• The Remote diagnostic Device II
communicates an interruption of count
pulses.
• An open circuit is detected for 5 V or 24 V
at power-on.
• The exhaust fan drive detection signal
(EXFAN1_DT*, FXFAN0_DT*) cannot
be detected 0.5 sec after the start of the
exhaust fan (FM2, FM4).
• The cleaner thermistor (TH3) detects 55°C
or more.
• The DC controller PCB is faulty.
• The DC controller PCB is faulty.
• The DC controller PCB is faulty.
• The ADF controller PCB is fault.
• The ADF cable is faulty.
• The DC controller PCB is faulty.
• The Remote Diagnostic Device II PCB is
faulty.
• The auto power-off circuit has an open
circuit.
• The DC controller PCB is faulty.
• The exhaust fan (FM2, FM4) is faulty.
• The DC controller PCB is faulty.
• The ozone filter is clogged.
• The cleaner thermistor (TH3) has poor
contact or an open circuit.
• The DC controller PCB is faulty.
E710
E805
Code
Cause Description
E711
E712
E717
E800
E821
