Konica Minolta magicolor 1600W, Service Manual

Page: 139 / 216

17. Malfunction code Field Service V er. 1.0 Nov. 200 8
102
magicolor 1600W magicolor 1650EN
T
roubleshooting
0094
2nd image transfer pressure
/retraction failure
• The state of the 2nd image transfer retraction position
sensor is not changed from the unblocked to blocked
state even after the lapse of a predetermined period of
time during predrive.
• The 2nd image transfer retraction position sensor is in
the unblocked state even after the lapse of a predeter-
mined period of time during predrive.
• The 2nd image transfer retraction position sensor is not
blocked (roller in the retracted position) within a prede-
termined period of time after the retraction sequence of
the 2nd transfer roller has been started.
• The 2nd image transfer retraction position sensor is not
unblocked (roller in the pressed position) within a pre-
determined period of time after the pressure sequence
of the 2nd transfer roller has been started.
0300 Polygon motor malfunction
• A LOW motor lock signal is not detected even after the
lapse of a predetermined period of time after the poly-
gon motor has been started.
• The motor lock signal remains HIGH for a predeter-
mined consecutive period of time while the polygon
motor remains energized.
0310 Laser malfunction
• The SOS signal is not detected within a predetermined
period of time after the output of a laser has been
started.
• The SOS signal is never detected in the image area.
0500 Fuser warm-up failure
• The thermistor does not detect a predetermined tem-
perature value even after the lapse of a predetermined
period of time after the current warm-up cycle has been
started and the current warm-up cycle is thus not com-
pleted.
0502 Thermistor open-circuit failure
• The temperature detected by the thermistor does not
reach a predetermined level even after the lapse of a
given period time after the warm-up cycle has been
started.
0503 Thermistor resistance failure
• The heater lamp remains ON for a predetermined con-
secutive period of time.
0510 Abnormally low fuser temperature
• The temperature detected by the thermistor remains
lower than a predetermined value for a predetermined
period of time.
0520 Abnormally high fuser temperature
• The temperature detected by the thermistor is a prede-
termined value or higher for a predetermined period of
time.
0F51 Waste toner full sensor trouble • Waste toner full sensor detects abnormal situation.
13C0 Printer control board malfunction
• Communications with the M/C expansion IO G/A (IC on
the printer control board) are not properly carried out.
13DD Backup data error
• The printer determines that EEPROM is yet to be
mounted when the main power switch is turned ON.
13E2 Flash ROM write error • Flash ROM writing is found faulty during a check.
13F0 Engine control failure
• An undefined malfunction occurs in the engine section
(PRCB, etc.).
Code Item Detection Timing