Service manual

T- 3 1
C0500 Warming-up failure The surface temperature of the Upper Fusing Roller
does not reach a specified level even after the lapse of
a predetermined period of time during warming-up as
detailed below:
• From room temperature to 90°C: Within 180 sec.
• From 90°C to 140°C: Within 140 sec.
• From 140°C to 170°C: Within 135 sec.
The copier fails to complete its warm-up cycle within
135 sec. after the temperature has reached 170°C.
C0510 Abnormally low fusing
temperature
• The surface temperature of the Upper Using Roller
remains less than 120°C for a continuous period of
2 sec. or more after the copier has completed warm-
ing up.
• The surface temperature of the Lower Using Roller
remains 80°C or less for a continuous period of 2
sec. or more after the copier has completed warm-
ing up.
C0520 Abnormally high fusing
temperature
• The surface temperature of the Upper Using Roller
remains 215°C or more for a continuous period of 2
sec. or more after the copier has completed warm-
ing up.
• The surface temperature of the Lower Using Roller
remains 200°C or more for a continuous period of 2
sec. or more after the copier has completed warm-
ing up.
C0602 Cable unwound A Scanner drive command is issued when the Scan-
ner is at its home position and the Scanner Reference
Position Sensor remains blocked even after the lapse
of a given period of time (after the Scanner has been
driven to move a given distance thereafter).
C0650 SHOME signal error A Scanner drive command is issued when the Scan-
ner is at a position other than its home and the Scan-
ner Reference Position Sensor is not blocked even
after the lapse of a given period of time (after the
Scanner has been driven to move a given distance
thereafter).
C0900
3
rd
Drawer Paper Lift-Up
Sensor malfunction
See the relevant option service manual.
C0904
3
rd
Drawer Paper Lift-Up
Motor’s failure to turn
Code Description Detection Timing