Device adapted for adjustment of scan position of light beam

Facsimile and static presentation processing – Static presentation processing – Flying dot

Reexamination Certificate

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C358S509000, C358S001500, C347S116000, C347S247000, C347S225000, C347S234000, C347S231000, C399S004000, C399S118000, C399S200000, C399S216000

Reexamination Certificate

active

07990572

ABSTRACT:
An optical scanning device65is adapted to bring a deflector mirror plane651into independent pivotal motions about a first axis and a second axis perpendicular to each other. A mirror driver section including a first axis driver and a second axis driver is so controlled as to bring the deflector mirror plane651into pivotal motion about the first axis thereby deflecting a light beam L for scanning along a main scan direction. On the other hand, the deflector mirror plane651is pivotally moved about the second axis thereby to adjust the scanned beam L for its position on a photosensitive member2with respect to a subscan direction. Thus, even if the scanned beam is deviated from a reference scan position with respect to the subscan direction due to component tolerances or assembly errors, such a deviation can be corrected.

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