High-voltage power-supply PCA
The high-voltage power-supply PCA consists of four high-voltage generation circuits and a fuser control
circuit. The DC controller controls the high-voltage power-supply PCA and enables it to generate high-
voltage biases.
The generated biases are applied to the primary charging roller, developing cylinder, transfer charging
roller, electrostatic eliminator, and fuser film.
Fuser Unit
Fuser film
Fuser control
circuit
Fuser pressure roller
DC controller
PCA
High-voltage power
supply PCA
Figure 4-5 High-voltage power-supply PCA block diagram
The fuser-control circuit controls the heater in the fuser unit according to commands from the DC
controller. The HP LaserJet M5025 MFP and HP LaserJet M5035 Series MFP use an on-demand fuser
method.
ENWW Print engine 109
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