B. Print Process
The major portion of the image formation system is contained in a cartridge as shown in Figure
2-4-2.
Figure 2-4-2
The cartridge used by the printer has a seamless photosensitive drum with the structure
shown in Figure 2-4-3.
The seamless drum consists of an external organic photoconductive layer (OPC) and an inter-
nal aluminum substrate.
Figure 2-4-3
The printing process can be divided into five major stages.
1.
Electrostatic latent image formation stage
Step 1: Primary charging (-)
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
CHAPTER 2
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Cleaning blade
Cartridge
Blade
Static charge eliminator
Photosensitive drum
Primary charging roller
Laser beam
Transfer charging roller
Developing cylinder
Photoconductive
layer
Substrate
