Service manual

ENWW Chapter 5 Theory of operation 89
Image-formation process
Laser printing requires the interaction of several different technologies, including 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 the following five processes:
● electrostatic latent-image formation
● developing
● transfer
● fusing
● drum cleaning
The five processes contain eight steps, which are shown in figure 19 and described in the
following sections.
Figure 19. Image-formation system