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Laser/scanner system
The laser/scanner system receives VIDEO signals from the ECU and the formatter and converts the
signals into latent images on the photosensitive drum.
The main components of the laser/scanner are the laser unit and the scanner motor unit. The DC
controller sends signals to the laser/scanner to control the functions of these components.
Figure 1-15 Laser/scanner system
Formatter
DC controller
Photosensitive drum
Scanning mirror
BD sensor
Laser unit
Scanner motor unit
BDI signal
VIDEO signal
LASER CONTROL signal
SCANNER MOTOR CONTROL signal
Engine controller unit
24 Chapter 1 Theory of operation ENWW