Optical scanning unit module and optical scanning system adoptin

Details Optical scanning unit module and optical scanning system adoptin Optical scanning unit module and optical scanning system adoptin

1998-07-15

2000-04-25

Spyrou, Cassandra

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359201, 359204, 359216, 347115, G02B 2608

Patent

active

06055083&

ABSTRACT:
An optical scanning system for a printer including a shaft rotated by a driving unit, a plurality of rotary polygon mirrors installed on the shaft and spaced apart by a predetermined distance, a plurality of light sources for emitting light beams to each of the rotary polygon mirrors, a plurality of lens units for focusing the light beams reflected by the respective rotary polygon mirrors on a circulating photoreceptor belt, a plurality of photodetectors for receiving one of the beams approaching an edge of the photoreceptor belt and outputting electrical signals corresponding to the receiving of the one of the beams, and a system controller for receiving the signals output by the photodetectors and controlling operation of the light sources and the driving unit.

REFERENCES:
patent: 5774630 (1998-06-01), Lee et al.

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