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Image Formation System
Laser printing requires the interaction of several different technologies (such as
electronics, optics, and electrophotographics) to provide a printed page. Each
process functions independently and must be coordinated with the other printer
processes. Image formation consists of six processes:
•• Step 1. Drum Cleaning
•• Step 2. Drum Conditioning
•• Step 3. Image Writing
•• Step 4. Image Developing
•• Step 5. Image Transferring
•• Step 6. Image Fusing
Image Formation Block Diagram
2. Scanning Exposure
1. Primary Charging
7. Drum Cleaning
3. Developing
5. Separation
4. Transfer
Registration
6. Fusing
Paper Delivery
Manual Feeding Slot
Multi-Purpose Tray
Drum Cleaning
Block
Fuser Block
Transfer Block
Electrostatic Latent Image Formation Block
Developing
Block
Flow Of Paper
Direction Of Drum Rotation
Figure 5-4
5 - 12 Functional Overview