Optical scanning device

Details Optical scanning device Optical scanning device

2004-08-10

2008-11-04

Coles, Edward L. (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S001900, C358S475000, C358S509000, C348S208100, C348S500000, C399S410000, C399S107000

Reexamination Certificate

active

07446910

ABSTRACT:
A laser-control circuit board is mounted in a scanner to extend substantially parallel to a base plate, a bottom cover, and a top cover of the scanner. A synchronization detection element is attached to the under surface of the laser-control circuit board. A light beam is emitted from a light source, deflected by a polygon mirror, and is guided below the laser-control circuit board by various optical elements including a condenser lens, thereby being finally detected by the synchronization detection element. A through-hole is formed through the laser-control circuit board to check whether the synchronization detection element is in alignment with the condenser lens and other optical elements below the laser-control circuit board.

REFERENCES:
patent: 4992827 (1991-02-01), Kobayashi et al.
patent: 5485245 (1996-01-01), Kobayashi et al.
patent: 5917882 (1999-06-01), Khutoryansky et al.
patent: 6611293 (2003-08-01), Tarnoff et al.
patent: 2002/0019940 (2002-02-01), Matteson et al.
patent: 2005/0030400 (2005-02-01), Shigeta
patent: A 7-113972 (1995-05-01), None

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