High-Voltage Power Supply - Canon LBP6670dn Series Service Manual

2
Technology > Image Formation System > High-voltage Power Supply > Outline

High-voltage Power Supply

■ Outline
The high-voltage power supply applies biases to the following components:
• Primary charging roller
• Developing roller
• Transfer roller
• Fixing film
The DC controller controls the high-voltage power supply to generate biases. See "IV.
IMAGE-FORMATION SYSTEM"(Refer to page 2-4)for detailed information.
The Figure below shows the configuration of the High-voltage Power Supply.
Engine controller
High-voltage
DC controller power supply
FB
Primary
charging
PR
bias circuit
DV
Developing
bias circuit
TR
Transfer
bias circuit
2 Technology > Image Formation System > High-voltage Power Supply > Outline
Fixing unit
Fixing film
Pressure roller
Cartridge
Primary charging roller
Developing roller
Photosensitive
drum
Transfer roller
F-2-12
2-7
2-7