Canon GP405 Service Handbook page 157

A. Copier
Code Detail
E000
E001
0001
0002
0003
E002
E003
Cause
The fixing temperature does not increase.
• The main thermistor (TH1) has poor
contact or an open circuit.
• The fixing heater has an open circuit.
• The thermal switch has an open circuit.
• The DC controller PCB has a fault.
• The image processor PCB has fault.
The fixing temperature has increased
abnormally.
• The main thermistor (TH1) has a short
circuit.
• The fixing heater drive circuit has a fault.
• The DC controller PCB has a fault.
• The image processor PCB has a fault.
The sub thermistor has detected
overheating.
• The main thermistor (TH) has a short
circuit.
• The fixing heater drive circuit has a fault.
• The DC controller PCB has a fault.
• The image processor PCB has a fault.
The sub thermistor has an open circuit.
• The sub thermistor has an open circuit.
• The SSR has a fault.
• The DC controller PCB has a fault.
• The image processor PCB has a fault.
The fixing temperature does not reach a
specific value.
• The thermistor (TH1, TH2) is not
mounted properly, has poor contact, or
has an open circuit.
• The fixing heater has an open circuit
or has a crack.
• The fixing heater drive circuit has a fault.
• The DC controller PCB has a fault.
• The image processor PCB has a fault.
The fixing temperature has dropped
abnormally.
• The thermistor (TH1, TH2) is not
mounted properly, has poor contact, or
has an open circuit.
• The fixing heater has an open circuit
or has a crack.
• The fixing heater drive circuit has a fault.
• The DC controller PCB has a fault.
• The image processor PCB has a fault.
CHAPTER 5 SELF DIAGNOSIS
Description
The main thermistor reading
does not reach 55°C 45 sec
after the main power switch has
been turned on.
The output of the main
thermistor has exceeded 220°C.
The output of the sub
thermistor has exceeded 235°C.
The output of the main thermistor
satisfies the following:
• 31 sec or more between
40°C and 75°C.
• 23 sec or more between
75°C and 100°C
• 19 sec or more between
100°C and 120°C
• 19 sec or more between
120°C and 140°C
• 19 sec or more between
140°C and 160°C.
• 15 sec or more between
160°C and 170°C.
• The thermistor (TH1,
TH2) has detected 100°C or
less after wait-up.
5-3