Optical scanning device and image forming apparatus

Details Optical scanning device and image forming apparatus Optical scanning device and image forming apparatus

2007-08-08

2008-12-30

Phan, James (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S201100, C359S216100, C347S232000, C347S243000

Reexamination Certificate

active

07471434

ABSTRACT:
A common photodetecting unit detects a plurality of beams scanned by a plurality of polyhedral reflection mirrors provided in a multiple stages with a common rotation axis, and generates a synchronization detection signal based on detected beams. The reflection mirrors make a predetermined angle θ1 in a direction of rotation of the reflection mirrors. When time between two consecutive synchronization detection signals on a time line generated by the common photodetecting unit is ti, where i is a positive integer equal to or smaller than number of split beams, at least one of ti is different from others.

REFERENCES:
patent: 3646568 (1972-02-01), Woywood
patent: 6934061 (2005-08-01), Ono et al.
patent: 6977762 (2005-12-01), Hayashi
patent: 7006120 (2006-02-01), Sakal et al.
patent: 7050210 (2006-05-01), Atsuumi et al.
patent: 7145705 (2006-12-01), Hayashi
patent: 7154651 (2006-12-01), Atsuumi et al.
patent: 7164516 (2007-01-01), Hayashi et al.
patent: 7218432 (2007-05-01), Ichii et al.
patent: 7233425 (2007-06-01), Hayashi
patent: 7236281 (2007-06-01), Hayashi et al.
patent: 2004/0036936 (2004-02-01), Nakajima et al.
patent: 2006/0000990 (2006-01-01), Hayashi et al.
patent: 2006/0077500 (2006-04-01), Hayashi et al.
patent: 2006/0232659 (2006-10-01), Hayashi et al.
patent: 2006/0256185 (2006-11-01), Suzuki et al.
patent: 2006/0284968 (2006-12-01), Hayashi et al.
patent: 2007/0058255 (2007-03-01), Imai et al.
patent: 2007/0081217 (2007-04-01), Hayashi et al.
patent: 2007/0091398 (2007-04-01), Ueda et al.
patent: 2001-083452 (2001-03-01), None
patent: 2002-023085 (2002-01-01), None
patent: 2005-092129 (2005-04-01), None

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