Light scanning unit and image forming apparatus having the same

Details Light scanning unit and image forming apparatus having the same Light scanning unit and image forming apparatus having the same

2011-07-19

2011-07-19

Pham, Hai C (Department: 2861)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

C347S250000

Reexamination Certificate

active

07982759

ABSTRACT:
A light scanning unit of an image forming apparatus to scan a light beam in forward and reverse directions, the light scanning unit including: a beam deflector to deflect the light beam, and to form forward direction and reverse direction scanning lines in an image section and first and second non-image sections respectively provided on opposite sides of the image section; a reflecting member to reflect a light beam inputted from the beam deflector; and a light detecting unit to receive a first light beam directly inputted from the beam deflector, and a second light beam inputted via the reflecting member, wherein the reflecting member includes a reflecting unit to reflect the inputted light beam to the light detecting unit, and a distinguishing unit to distinguish the reflected second light beam from the first light beam.

REFERENCES:
patent: 6075586 (2000-06-01), Ohtomo et al.
patent: 7186970 (2007-03-01), Cannon et al.

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