Apple LaserWriter300 Specifications download pdf (Page 9)

Basics Image Formation System - 7

The Printing Process

Upon receiving a print signal from the I/O board, the

printer's controller assembly sends power to the main

motor. The main motor, in turn, supplies the power that

rotates the photosensitive drum, developing cylinder,

primary charging roller, and transfer roller.

The primary charging roller applies a uniform negative

charge on the photosensitive drum surface. At the same

time, the laser/scanner assembly emits a laser beam that

scans a latent image onto the surface of the photosensitive

drum.

The latent image on the photosensitive drum becomes visible

when the transfer roller transfers toner onto the developing

cylinder.

Once the image is printed, the cleaner blade removes any

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Apple LaserWriter300 Specifications Page 9