Ikhsanudin Ikhsanudin Author
Title: Error Detection and Correction
Author: Ikhsanudin
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Error Detection and Correction For canon imagerunner 6000/5000 The system used to control the fixing temperature checks for the foll...
Error Detection and Correction For canon imagerunner 6000/5000
Error Detection and Correction

The system used to control the fixing temperature checks for the following errors:
1. Temperature error by the main thermistor (TH1)
2. Sensor error by the sub thermistor (TH2)
3. Overheating error by the thermal switch (TP1)

The control system makes use of the following signals:
[1] Fixing roller temperature detection signal 1; generates a voltage suited to the temperature
detected by the main thermistor.
[2] Fixing roller temperature detection signal 2; generates a voltage suited to the temperature
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’.

Error Code
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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