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.
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 transfers to the ITB and
subsequently to the paper.
Fusing 8. Fusing The toner fuses 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.
22 Chapter 1 Theory of operation ENWW