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CHAPTER 2
B. Printing Process
A major portion of the image formation system is contained with a cartridge as shown in Figure
Laser beam | Cartridge |
Primary charging roller | Blade |
Cleaning blade | Developing cylinder |
| |
Photosensitive drum |
|
| Transfer charging roller |
| Static charge eliminator |
Figure
This printer’s cartridge has a seamless photosensitive drum with a
The outer layer of the drum consists of an organic photoconductor (OPC) and the base is alu- minum.
Photoconductive layer
Base
Figure
The printing process can be divided into five major stages.
1.Electrostatic latent image formation stage Step 1 Primary charge (-)
Step 2 Scanning exposure
2.Developing stage
Step 3 Development
3.Transfer stage Step 4 Transfer (+) Step 5 Separation
4.Fixing stage Step 6 Fixing
Step 7 Fixing roller cleaning
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