Printing Process - Canon LBP-1760 Service Manual

CHAPTER 2
B. Printing Process
A major portion of the image formation system is contained in the cartridge as shown in Figure
2-4-2.
Primary charging roller
Cleaner blade
Photosensitive drum
This printer's cartridge has a seamless drum of a double-layer construction as shown in Figure
2-4-3.
The outer layer of the drum consists of an organic photoconductor (OPC) and the base is
made of aluminum.
The printing process can be divided into five major blocks.
1. Electrostatic latent image formation block
Step 1: Primary charging (-)
Step 2: Laser beam exposure
2. Developing block
Step 3: Developing
3. Transfer block
Step 4: Transfer (+)
Step 5: Separation
4. Fixing block
Step 6: Fixing
2 - 30
Laser beam
Blade
Transfer charging roller
Static charge eliminator
Figure 2-4-2
Photoconductive layer
Base
Figure 2-4-3
Cartridge
Developing cylinder