Ix . Self Diagnosis; A. Copier Self Diagnosis - Canon GP605 Service Manual

CHAPTER 13 TROUBLESHOOTING

IX . SELF DIAGNOSIS

The microprocessor on the copier's DC controller PCB is equipped with a mechanism that
checks the state of the copier (especially its sensors). It runs a check as needed and, upon detection
of a fault, indicates a code on the control panel.
A. Copier Self Diagnosis
Code
• The main thermistor (TH1) has poor
contact or an open circuit.
• The fixing heater (H1, H2) has an open
circuit.
E000 • The thermal switch (TS1) has an open
circuit.
• The SSR is faulty.
(NOTE 1)
• The DC control PCB is faulty.
• The sub thermistor (TH2) has poor
contact or an open circuit.
After indicating E000, the power switch
turns off in about 5 sec.
• The main thermistor (TH1) has a short
circuit.
E001
• The SSR is faulty.
• The DC controller PCB is faulty.
(NOTE 1)
• The sub thermistor (TH2) has detected
overheating.
• The main thermistor (TH1) has poor
contact or an open circuit.
• The fixing heater (H1, H2) has an open
E002
circuit.
• The thermal switch (TS1) has an open
(NOTE 1)
circuit.
• The SSR is faulty.
• The DC controller PCB is faulty.
• The main thermistor (TH1) has poor
contact or an open circuit.
• The fixing heater (H1, H2) has an open
E003
circuit.
• The thermal switch (TS1) has an open
(NOTE 1)
circuit.
• The SSR is faulty.
• The DC controller PCB is faulty.
E004
• The SSR is faulty.
• The DC controller PCB is faulty.
(NOTE 1)
• The cleaning belt inside the fixing
assembly has been taken up.
E005
• The fixing cleaning belt length sensor
(PS7) is faulty.
• The DC controller PCB is faulty.
13-250
COPYRIGHT © 1999 CANON INC.
Cause
CANON GP605/605V REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Description
• The temperature of the upper fixing
roller does not reach 70°C within 3 min
30 sec after power-on.
• The temperature of the upper fixing
roller exceeds 230°C for 2 sec or more.
• The difference in detection temperature
between the main thermistor (TH1) and
the sub thermistor (TH2) is 50°C for 1
sec or more.
• The temperature of the upper fixing
roller does not reach 100°C within 2.5
min after it has exceeded 70°C.
• The temperature of the upper fixing
roller does not reach 150°C within 2.5
min after it has exceeded 100°C.
• The temperature of the upper fixing
roller drops to 70°C or less for 2 sec
after it has reached 100°C.
• The SSR used to drive the fixing heater
has a short circuit.
• The cleaning belt inside the fixing
assembly has been taken up more than a
specific length.