Canon iR7086 Series Service Manual page 366

Chapter 9
ERROR CODE:
E000 (heating failure)
0000 After the power is turned on, the reading of the main thermistor fails to reach 70 deg C or more within 3.5 min.
E001 (overheating)
0001 The reading of the main or sub thermistor is 230 deg C or more for 2 sec (detection by hardware).
0002 The reading of the main or sub thermistor is 230 deg C or more for 2 sec (detection by software).
0003 The difference between the readings of the main thermistor and the sub thermistor is 50 deg C for 1 sec or more (main > sub).
0004 The difference between the readings of the main and the sub thermistor is 50 deg C for 1 sec or more (main >/= sub ).
E002 (heating failure)
0001 The reading of the main thermistor is 70 deg C or more but does not reach 100 deg C within 2.5 min.
0002 The reading of the main thermistor exceeds 100 deg C but does not reach 150 deg C within 2.5 min thereafter.
E003 (low temperature)
0000 With the reading of the main thermistor in excess of 100 deg C, a temperature of 70 deg C or less is detected for 2 sec.
E004 (SSR short circuit)
0000 The SSR is identified as having a short circuit for 5 sec or more while the sub heater is on.
0001 The SSR is identified as having a short circuit for 5 sec while the main heater is on.
Reference:
If E000 through E004 is indicated, the code will not be reset even when the main power switch is turned off. To reset, use service mode (COPIER > FUNCTION
> CLEAR > ERR).
9-10
Voltage suited to
J508B
reading of main thermistor
1
M-TEMP
7
0V
8
S-TEMP
9
0V
10
Fixing upper roller
20
Main
heater
J505A
1
Sub heater
M-H-DTC
9
M-H-ON
10
0V
11
S-H-ON
12
AC driver
S-H-DTC
13
ZEROCROSS
14
0V
15
100V/200V
16
When '1', main heater goes on
J505A
1 1
When '0', AC relay goes off
24V
10
Relay OFF*
11
16
Voltage suited to
reading of sub thermistor
Main thermistor
Thermal switch
At 228 deg C,
cuts off AC line
RLY
Relay
When sub heater is
supplied with power, '0'
Relay PCB
F-9-13
Sub thermistor
Front cover