COPYRIGHT
©
2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
CHAPTER 6 FIXING SYSTEM
6-18 P
3.3 Detecting Errors
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)
DC controller PCB
J106B
111
7
8
10
20
S-TEMP [2]
0V
0V
M-TEMP [1]
Fixing upper roller
Main
heater
Sub thermistor
Main thermistor
Thermal switch
9
J102B
1
11
10
0V
12V
SUB_HT_ON [3]
MAIN_DETECT [6]
MAIN_HT_ON [5]
SUB_DETECT [4]
9
14
AC line off at 240ËšC
RLY
Relay
Front cover
AC driver
12
13
Sub heater
8
7
J119
111
3
4
2
24V
0V
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F06-303-01
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