HP (Hewlett-Packard) CF081A#BGJ Benutzerhandbuch
Image formation process
The image-formation system consists of ten steps divided into six functional blocks.
Figure 1-10
Image formation process
Fusing
Fuser
Y
M
C
K
Table 1-11
Image formation process
Functional block
Steps
Description
Latent image formation
1. Pre-exposure
2. Primary charging
3. Laser-beam exposure
An invisible latent image forms on the
surface of the photosensitive drums.
surface of the photosensitive drums.
Development
4. Development
Toner adheres to the electrostatic latent
image on the photosensitive drums.
image on the photosensitive drums.
Transfer
5. Primary transfer
6. Secondary transfer
7. Separation
The toner image transfers to the ITB and
subsequently to the paper.
subsequently to the paper.
Fusing
8. Fusing
The toner fuses to the paper to make a
permanent image.
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.
photosensitive drums.
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Chapter 1 Theory of operation
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