User Guide

Component Function

TH2 Sub thermistor 1 Detects the temperature at ends of the fuser heater (contact type)

TH3 Sub thermistor 2

TH4 Sub thermistor 3

Figure 1-9 Fuser control system

MFSRTH

S1FSRTH

S2FSRTH

S3FSRTH

Fuser heater safety circuit

FSRD2

FSRCUR

Relay drive circuit

Fuser heater

control circuit

RL1002

Zerocross detection

circuit

Low-voltage power supply

High-voltage power supply

AC input

FSRD1

DC controller

RLD

/ZEROX

RL1001

Fuser control circuit

H1/H2

TH3

TP1

Pressure roller

TH2

TH4

TH1

Fuser

Current

detection

circuit

Fuser film assembly

ENWW

Engine control system