Canon imageCLASS LBP6780dn - High-Voltage Power Supply; Outline

2
2
2-8
2-8
Technology > Image Formation System > High-voltage Power Supply > Outline
Technology > Image Formation System > High-voltage Power Supply > Outline
The residual toner is cleared from the photosensitive drum surface.
Step 7: Drum cleaning
The cleaning blade scrapes the residual toner off the surface of the photosensitive drum.
The residual toner is deposited in the toner collection box.
Toner collection box
Photosensitive
drum
Cleaning blade
F-2-11
High-voltage Power Supply
■
Outline
The high-voltage power supply applies biases to the following components:
• Primary charging roller
• Developing roller
• Transfer roller
• Fixing lm
The DC controller controls the high-voltage power supply to generate biases.
The Figure below shows the conguration of the High-voltage Power Supply.
Engine controller
FILMB
To primary charging roller
To developing roller
Photosensitive drum
Transfer roller
High-voltage
power supply
Primary
charging bias
circuit
Developing
bias circuit
Fixing unit
Fixing film
Pressure roller
Transfer
bias circuit
Fixing film
bias circuit
DC controller
Cartridge
TR
PRI
DEV
FSRB
F-2-12