Detection Of New Fixing Film Unit; Protection Function - Canon imageRUNNER ADVANCE C5500 Series Service Manual

Detection of New Fixing Film Unit

The Fixing Memory PCB (UN79) detects whether the Fixing Film Unit is new at power-on/recovery from sleep mode/closing of
the cover.
When a new part is detected, the parts counter (COPIER > COUNTER> DRBL-1 > FX-UP-FR) is cleared and the Fixing Film
Unit replacement completion alarm (alarm code: 43-0076) is generated.
CAUTION:
When the Fixing Memory PCB cannot be detected, the following screen is displayed on the Control Panel.
At that time, alarm code 06-0012 is generated.

Protection function

Code
E001 Detection of abnormal high temperature
0001 The Fixing Main Thermistor detected a high temperature error.
0002 The Fixing Thermistor (Front) detected a high temperature error.
0003 The Fixing Thermistor (Rear) detected a high temperature error.
0004 The Fixing Film Thermistor (Middle) detected a high temperature error.
0005 The Fixing Film Thermistor (Front) detected a high temperature error.
0006 The Fixing Film Thermistor (Rear) detected a high temperature error.
0007 The Fixing Thermistor detected a high temperature error by hardware detection.
E002 Detection of abnormal low temperature during startup
0001 After the Fixing Heater was turned ON, the Fixing Main Thermistor detected no temperature in-
crease.
0002 Startup control was not completed although 60 sec had passed.
0003 After the Fixing Heater was turned ON, the Fixing Main Thermistor detected error in temperature
increase.
0004 After the Fixing Heater was turned ON, the Fixing Thermistor (Front) detected error in temperature
increase.
0005 After the Fixing Heater was turned ON, the Fixing Thermistor (Rear) detected error in temperature
increase.
0006 The Fixing Film Thermistor (Middle) detected no temperature increase.
0007 The Fixing Film Thermistor (Front) detected no temperature increase.
0008 The Fixing Film Thermistor (Rear) detected no temperature increase.
0009 The Fixing Film Thermistor (Middle) detected error in temperature increase.
0010 The Fixing Film Thermistor (Front) detected error in temperature increase.
Description
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2. Technology
Clearing of
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