Canon NP6251 Service Manual page 794

Code
• Auto power-off circuit (open circuit)
• DC controller PCB (fault)
E800
• Auto power-off circuit (fault)
E802
• DC controller PCB (fault)
Caution:
1. When the self-diagnosis mechanism has turned on, you reset the machine by
turning off its power switch. This, however, does not work for E000, E001, E002,
E003, E004, E005, E013, or E020. It is to prevent the user from casually
resetting the machine when the thermistor has an open circuit; otherwise, the
fixing roller will overheat or the hopper will overflow.
In most models, the power switch will automatically turn off in about 20 sec for
E000 through E003 even if you leave the machine alone. The machine's power-
switch, however, will turn off in about 5 sec after indicating 'E000' if the sub
thermistor (TH2) has an open circuit.
For E000, E001, E002, E003, E004, E005, E013, and E020, you must initialize
the data in the RAM on the DC controller PCB.
1) Start service mode (
2) Using the
3) Press (user mode) to clear the indication.
4) The message panel on the control panel will be refreshed, and the Copy Mode
screen will return.
2. For E015, E202, and E204, you can make checks in reference to B-ERR1, B-
ERR2, and B-ERR3 in service mode (
COPYRIGHT © 1997 CANON INC.
Cause
).
4
or key, select 'ERROR'.
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 11 TROUBLESHOOTING
Description
• The auto power-off has an open
circuit.
• The auto power-off signal is gener-
ated twice or more within 2 sec.
• The relay (RY401) in the power sup-
ply unit does not operate in response
to the auto power-off signal.
).
1
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