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Component
TH2
Sub thermistor 1
TH3
Sub thermistor 2
TH4
Sub thermistor 3
Figure 1-9
RL1001
Fuser film assembly
TP1
Pressure roller
ENWW
Function
Detects the temperature at ends of the fuser heater (contact type)
Fuser control system
AC input
RL1002
Fuser heater
control circuit
Fuser heater safety circuit
Fuser
TH2
TH1
TH3
TH4
H1/H2
Low-voltage power supply
Zerocross detection
circuit
High-voltage power supply
Relay drive circuit
Current
detection
circuit
Fuser control circuit
DC controller
/ZEROX
RLD
FSRD1
FSRD2
FSRCUR
MFSRTH
S1FSRTH
S2FSRTH
S3FSRTH
Engine control system
17
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Table of Contents
Troubleshooting
