Canon imageCLASS LBP6780dn - Image Formation System

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Technology > Image Formation System > Image Formation Process > Outline
Technology > Image Formation System > Image Formation Process > Outline
Image Formation System
Outline
The image formation system forms a toner image on print media.
The following are the main components of the image formation system:
• Cartridge
• Transfer roller
• Fixing unit
• Laser scanner
The DC controller controls the laser scanner and high-voltage power supply to form the toner
imageon the photosensitive drum. The image is transferred to the print media and xed.
Diagram of the image formation system is shown below.
Laser scanner
Cartridge
Transfer roller
High-voltage power supply
DC controller
Fixing unit
Laser beam
Engine controller
F-2-3
Image Formation Process
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Outline
The image formation process consists of the following seven steps divided among ve
functional blocks:
Latent image formation block
Step 1: Primary charging
Step 2: Laser-beam exposure
Developing block
Step 3: Developing
Transfer block
Step 4: Transfer
Step 5: Separation
Fixing block
Step 6: Fixing
Drum cleaning block
Step 7: Drum cleaning
Drum cleaning
Developing
2. Laser-beam exposure
Fixing
6. Fixing
Delivery
7. Drum cleaning
3. Developing
1. Primary charging
Pickup
4. Transfer
5. Separation
Transfer
Latent image formation
: Media path
: Direction of drum rotation
: Block
: Step
F-2-4