Lexmark MX310 Service Manual page 479

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Step 2: Expose

The laser ﬁres a focused beam of light at the surface of the photoconductor and writes an invisible image, called

a latent image. The laser beam only discharges the surface where the beam hits the photoconductor. This

creates a difference in charge potential between the exposed area and the rest of the photoconductor surface.

Step 3: Develop

Once the laser exposes the photoconductor, the HVPS sends charge to the developer roll. Because of the

charge difference between the toner on the developer roller and the electrostatic image created by the laser,

the toner is attracted to areas of the photoconductor surface exposed by the laser.

Drum Surface

Invisible Latent Image

Theory of operation

Drum Surface