Canon iR5000 Service Manual page 400

The control system makes use of the following signals:
[1] Fixing roller temperature detection signal 1; generates a voltage suited to the tempera-
ture detected by the main thermistor.
[2] Fixing roller temperature detection signal 2; generates a voltage suited to the tempera-
ture detected by the sub thermistor.
[3] Sub heater drive signal; when '1', the sub heater turns on.
[4] Sub heater temperature detection signal; when the sub heater is supplied with power,
'0'.
[5] Main heater drive signal; when '1', the main heater turns on.
[6] Main heater temperature detection signal; when the main heater is supplied with
power, '0'.
E000
The main thermistor (TH1) has poor contact or an open circuit. The thermal
switch (TP1) has an open circuit. The fixing heater has an open circuit. The
AC driver PCB is faulty. The DC controller PCB is faulty.
E001
The main thermistor (TH1) has a short circuit. The sub thermistor (TH2)
has detected overheating. The AC driver PCB is faulty. The DC controller
PCB is faulty.
E002
The main thermistor (TH1) has poor contact or an open circuit. The thermal
switch (TP1) has an open circuit. The fixing heater has an open circuit. The
AC driver PCB is faulty. The DC controlled PCB is faulty.
E003
The main thermistor (TH1) has poor contact or an open circuit. The thermal
switch (TP1) has an open circuit. The fixing heater has an open circuit. The
AC driver PCB is faulty. The DC controller PCB is faulty.
E004
The AC driver PCB is faulty. The DC controller PCB is faulty.
E005
The fixing web has been taken up. The fixing web length sensor (PS45) is
faulty. The DC controller PCB is faulty.
If 'E000' through 'E004' is indicated, the error code indication will not be
reset even when the main power switch is turned off and then on, requiring
resetting in service mode (COPIER>FUNCTION>CLEAR>ERR).
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2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
CHAPTER 6 FIXING SYSTEM
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