Exposure - Dell 3130cn Service Manual

1.3.2 Exposure

In the exposure process, the drum surface charged negatively is scanned by laser beams to form
invisible electrostatic latent image on the drum surface.
This process is performed in parallel for yellow, magenta, cyan and black colors.
- Laser beams are emitted from the laser diode in the PRINTHEAD. By the rotating polygon mirror,
fixed mirror and lens attached to the Scanner Motor Assy of the PRINTHEAD, the surface of each
color drum is scanned from end to end in the axial direction.
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Chapter 6 Principles of Operation
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