Image-formation process
The image formation system consists of ten steps that are divided into six functional blocks.
Figure 1-10 Image-formation process
ITB cleaning
Transfer
Latent image formation
Development
Fuser
Media path
Direction of the drum rotation
Block
Step
Pickup
Delivery
Registration
Drum cleaning
6. Secondary transfer
5. Primary transfer
7. Separation
8. Fuser
10. Drum cleaning
9. ITB cleaning
1. Pre-exposure
2. Primary charging
4. Development
3. Laser beam exposure
K
C
M
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Functional block Steps Description
Latent image formation 1. Pre-exposure
2. Primary charging
3. Laser-beam exposure
An invisible latent image is formed on
the surface of the photosensitive drums.
Development 4. Development Toner adheres to the electrostatic latent
image on the photosensitive drums.
Transfer 5. Primary transfer
6. Secondary transfer
7. Separation
The toner image is transferred to the
ITB and subsequently to the paper.
Fusing 8. Fusing The toner is fused to the paper to make
a permanent image.
ITB cleaning 9. ITB cleaning Residual toner is removed from the ITB.
Drum cleaning 10. Drum cleaning Residual toner is removed from the
photosensitive drums.
28 Chapter 1 Theory of operation ENWW
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