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Image-formation process
The image-formation process consists of seven steps divided into five functional blocks:
Latent-image-formation system
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Step 1: Primary charging
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Step 2: Laser-beam exposure
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Developing system
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Step 3: Developing
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Transfer system
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Step 4: Transfer
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Step 5: Separation
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Fuser system
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Step 6: Fusing
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Drum cleaning
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Step 7: Drum cleaning
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Figure 1-13
: Paper path
: Direction of the drum rotation
: Functional block
: Step
Delivery
Latent-image formation block
During the two steps that comprise this block, an invisible latent image is formed on the photosensitive
drum.
Step 1: Primary charging
To prepare for latent-image formation, the surface of the photosensitive drum is charged with a uniform
negative potential. The primary charging roller charges the photosensitive drum directly. The primary
ENWW
Image-formation process
1. Primary charging
7. Drum cleaning
6. Fusing
Fusing
Latent image formation
2. Laser-beam exposure
3. Developing
5. Separation
4. Transfer
Transfer
Developing
Pickup
Image-formation system
25
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Troubleshooting
