HP LaserJet Pro P1606 HP LaserJet Professional P1560 and P1600 Series Printer - Page 33
Fuser-control circuit,
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Fuser-control circuit The fuser-control circuit monitors and controls the temperature in the fuser. The product uses ondemand fusing. The fuser-control circuit consists of the following major components: ● Fuser heater (H1); heats the fusing film ● Thermistor (TH1); detects the fuser temperature (contact type) ● Thermoswitch (TP1); prevents abnormal temperature rise in the fuser (contact type) Figure 1-9 Fuser control circuit TH1 TP1 H1 Fuser film Pressure roller FUSER TEMPERATURE signal FUSER HEATER CONTROL signal Fuser heater control circuit Fuser control Fuser heater safety circuit Engine controller DC controller ENWW Engine-control system 15
Fuser-control circuit
The fuser-control circuit monitors and controls the temperature in the fuser. The product uses on-
demand fusing. The fuser-control circuit consists of the following major components:
●
Fuser heater (H1); heats the fusing film
●
Thermistor (TH1); detects the fuser temperature (contact type)
●
Thermoswitch (TP1); prevents abnormal temperature rise in the fuser (contact type)
Figure 1-9
Fuser control circuit
Fuser heater safety
circuit
TH1
TP1
H1
DC controller
Fuser heater control
circuit
Engine controller
FUSER TEMPERATURE signal
FUSER HEATER CONTROL signal
Pressure roller
Fuser film
Fuser control
ENWW
Engine-control system
15