Canon CP660 Service Manual page 384

CHAPTER 10 TROUBLESHOOTING
Code
The heat discharge fan 1 (FM1); used
E805
for the fixing assembly and area near
the feeding assembly) is faulty.
The heat discharge fan (FM2; used
E806
for the area around the intermediate
transfer drum) is faulty.
The heat discharge fan (FM3; used
E807
for the area around the scanner) is
faulty.
The fixing drive circuit/power unit is
E808
faulty.
The drum cartridge is absent.
E810
The intermediate transfer drum (ITD)
E812
is absent.
The fixing assembly is absent.
E813
The photosensitive drum in the drum
E814
cartridge has reached the end of its
life.
The paper deck lifter is faulty.
E903
*5
Note:
For troubleshooting faults related to the printer unit, see III. "Troubleshooting
Malfunctions" in Chapter 10; however, for disassembly/assembly, see the Reader
Unit Service Manual.
*1: See the Copy Data Controller Service Manual.
*2: See the Feeder Service Manual.
*3: See the ACC Controller Service Manual.
*4: See the 7-Bin Sorter Service Manual.
*5: See the Paper Deck Service Manual.
10-102
COPYRIGHT © 1999 CANON INC.
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Cause
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Description
The motor lock signal (FAN1LK) goes
'1' for 1.5 sec or more while the fan is
rotating.
The fan motor lock signal (FAN2LK)
goes '1' for 1.5 sec or more while the
fan is rotating.
The fan motor lock signal (FAN3LK)
goes '1' for 1.5 sec or more while the
fan is oration.
The fixing heater safety circuit has
detected a fault in the upper/lower fix-
ing heater.
The drum cartridge detecting switch
does not turn on at power-on or when
the cover is opened/closed.
The intermediate transfer drum (ITD)
home position is not detected within a
specific time (about 10 sec).
Both the upper fixing roller tempera-
ture detection signal (FXTHU) and
the lower fixing roller temperature
detection signal (FXTHL) indicate
-10°C or less.
A specific number of copies have
been counted after issuing the photo-
sensitive drum end of life warning.
• An error has been detected of the
paper deck lifter motor.
• The lifter upward movement takes
longer than a specific time.
• The paper level change time is in
excess of a specific value while the
lifter is moving up.