Rollers
Duplex rear
deliver roller
Transfer roll
First input roller
Photoconductor
drum
Paper exit roller
Fuser assembly
Fuser exit
roller
Secondary input
roller
Duplex front
deliver roller
MPF pick roller
Separator roll
Pick rollers
Pick rollers
Electrophotographic process (EP process)
Printhead
The printhead scans the photo conductor drum surface with a laser beam. It consists of the following
components:
• Laser diode (LD) card assembly
• Oscillator
• Start of scan card assembly
When a laser beam is scanned across the photoconductor drum surface from one end to the other while turning
on and o the beam, one line of latent image is created. If the scanning by the laser beam is repeated while
rotating the drum, a two-dimensional image is created. The resolution in the scanning direction (from right to
left) is determined by the rotational speed of the printhead motor, depending on how quickly the laser is
adjusted. The resolution in the process direction (from top to bottom) is determined by the rotational speed of
the printhead motor. The higher the scanning speed becomes, the sooner the scanning of the next row can be
started.
4514-330
Theory of operation
321
To Next Page
Loading...
