Fuser (fixing) control
The fuser-control circuit controls the fuser temperature. The product uses an on-demand fusing method.
Figure 5-6 Fuser (fixing) components
Fuser control
circuit
Fuser heater
safety circuit
Fuser sleeve
FUSER TEMPERATURE signal
FUSER HEATING
CONTROL signal
Table 5-9 Fuser (fixing) components
Type of component Abbreviation Name Function
Heaters H1 Fuser heater Heats the fuser sleeve.
Thermistors
(Contact type)
TH1 Main thermistor Each thermistor detects the center
temperature of the fuser sleeve.
TH2
TH3
Sub thermistor Each thermistor detects the side
temperature of the fuser heater.
Thermoswitches
(Non-contact type)
TP1 For the fuser heater Controls the fuser-roller main
heater
ENWW Engine-control system 127
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