High-Voltage Power Supply - Canon LBP253 SM Manual

Step 6: Fixing
The printer uses an on-demand fixing method. The toner image is permanently affixed to the print media by heat and pressure.
The fixing bias is applied to the fixing film to improve image quality.
■ Drum cleaning block
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.

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"
on page 17) for detailed information.
The Figure below shows the configuration of the High-voltage Power Supply.
Fixing film
Fixing bias
Cleaning blade
Toner
collection box
Fixing heater
Toner
Pressure roller
Photosensitive
drum
20
2. Technology
Media
("Outline"