HP LaserJet P1500 Service Manual - Page 41
Laser/scanner system
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Laser/scanner system The laser/scanner system receives video signals from the dc controller and the formatter and converts the signals into latent images on the photosensitive drum. Figure 3-5 Laser/scanner system BD sensor Laser unit Photosensitive drum BD INPUT signal VIDEO signal LASER CONTROL signal SCANNER MOTOR SPEED CONTROL signal Four-faced mirror Scanner motor unit Engine controller Formatter ENWW Laser/scanner system 29
Laser/scanner system
The laser/scanner system receives video signals from the dc controller and the formatter and converts
the signals into latent images on the photosensitive drum.
Figure 3-5
Laser/scanner system
Four-faced mirror
Scanner motor unit
Photosensitive drum
BD sensor
Laser unit
Formatter
Engine controller
LASER CONTROL signal
VIDEO signal
SCANNER MOTOR SPEED
CONTROL signal
BD INPUT signal
ENWW
Laser/scanner system
29