Multi-beam scanning device and image forming apparatus using...

Optical: systems and elements – Deflection using a moving element – Using a periodically moving element

Reexamination Certificate

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C359S212100, C347S243000, C347S245000

Reexamination Certificate

active

10756355

ABSTRACT:
A multi-beam scanning device including a multi-beam light source including plural laser diode arrays emitting plural laser beams and at least one coupling lens; a deflector configured to deflect the plural laser beams; an optical system configured to guide the deflected plural laser beams to an image forming surface; a body configured to contain the multi-beam light source, deflector and scanning optical system; and an adjustment member located between the body and the multi-beam light source and configured to adjust the beam pitch of the plural laser beams in the sub-scanning direction. An image forming apparatus including an image bearing member, the above-mentioned scanning device and an image forming device.

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patent: 5786594 (1998-07-01), Ito et al.
patent: 5926203 (1999-07-01), Shimura et al.
patent: 6313935 (2001-11-01), Makino
patent: 6320647 (2001-11-01), Makino
patent: 2002/0001118 (2002-01-01), Nakajima et al.
patent: 0 446 608 (1991-09-01), None
patent: 2001-13432 (2001-01-01), None
U.S. Appl. No. 09/725,756, filed Nov. 30, 2000, Makino.
U.S. Appl. No. 09/820,933, filed Mar. 30, 2001, Makino.
U.S. Appl. No. 10/756,355, filed Jan. 14, 2004, Makino.

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