High-voltage power supply

The high-voltage power supply (HVPS) applies biases to the following components:

●Primary charging roller

●Developing roller

●Transfer roller

●Fusing film

Figure 1-14High-voltage power supply

Engine controller unit

High-voltage power supply

Fuser

DC controller

 

 

Fuser film

 

 

FSRB

 

Fuser film bias

Pressure roller

 

FILMB

 

circuit

 

 

 

 

Cartridge

 

Primary

PRI

 

 

charging bias

To primary charging roller

 

circuit

 

 

 

 

To developing roller

 

Developing

DEV

 

 

bias circuit

 

Photosensitive drum

 

 

 

Transfer roller

 

Transfer bias

TR

 

 

circuit

 

 

22 Chapter 1 Theory of operation

ENWW