HP M5025 - LaserJet MFP B/W Laser - Page 140

Fuser Heater
Fuser film unit
Fuser heater
drive circuit
Fuser heater
safety circuit
FUSER HEATER
DRIVE signal
FUSER TEMPATURE
DETECTION signal
Fuser pressure roller
Fuser unit
High-voltage
power supply PCA
DC controller
PCA
Figure 4-6 Fuser unit
The fuser temperature control senses the surface temperature of the fuser heater and controls the fuser
heater drive signals to maintain a targeted temperature.
110 Chapter 4 Theory of operation ENWW