0500: Heating Roller Warm-Up Failure; 0501: Fusing Pressure Warm-Up Failure; 0510: Heating Roller Abnormally Low Temperature; 0511: Fusing Pressure Roller Abnormally Low Temperature - Minolta magicolor 7300 Service Manual

FrameMaker Ver.6E (PC) magicolor 7300 TROUBLESHOOTING
02.08.08

(33) 0500: Heating Roller Warm-Up Failure

(34) 0501: Fusing Pressure Warm-Up Failure

(35) 0510: Heating Roller abnormally low temperature

(36) 0511: Fusing Pressure Roller abnormally low temperature

(37) 0520: Heating Roller abnormally high temperature

(38) 0521: Fusing Pressure Roller abnormally high temperature

<Detection Timing>
Malfunction
Code
The Heating Roller Thermistor does not detect a predetermined
temperature after the lapse of a predetermined period of time after a
0500
warm-up cycle has been started and thus the printer does not complete
the warm-up cycle.
The Fusing Pressure Roller Thermistor does not detect a predetermined
temperature after the lapse of a predetermined period of time after a
0501
warm-up cycle has been started and thus the printer does not complete
the warm-up cycle.
When the predetermined temperature of the Heating Roller Thermistor
0510
decreases for more than a predetermined period of time.
When the predetermined temperature of the Fusing Pressure Roller
0511
Thermistor decreases for more than a predetermined period of time.
When the predetermined temperature of the Heating Roller Thermistor
0520
increases for more than a predetermined period of time.
When the predetermined temperature of the Fusing Pressure Roller
0521
Thermistor increases for more than a predetermined period of time.
<Action>
Fuser Unit
0500, 0501, 0510, 0511, 0520, 0521
Step Action
1 Replacing the Fuser Unit
2 Change PWB-T.
3 Change PWB-A.
4 Change PU1.
Description
Relevant Electrical Parts
Heater Lamp Control Board (PWB-T)
DC Power Supply (PU1)
Control Board (PWB-A)
Ref. Page
Control Signal
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T-37
WIRING DIAGRAM
(Location)
(Electrical
Parts)
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