Detecting Errors - Canon iR5000 Service Manual

CHAPTER 6 FIXING SYSTEM

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