Facsimile and static presentation processing – Facsimile – Picture signal generator
Reexamination Certificate
2006-12-26
2006-12-26
Lamb, Twyler (Department: 2625)
Facsimile and static presentation processing
Facsimile
Picture signal generator
C347S233000, C347S225000, C347S229000, C347S231000, C347S234000, C347S235000, C347S241000, C347S243000, C347S248000, C347S250000, C347S224000, C358S412000, C358S475000, C358S505000, C358S296000, C358S471000, C358S401000, C358S409000, C358S410000
Reexamination Certificate
active
07154640
ABSTRACT:
This invention is to obtain a multi-beam scanning apparatus which always executes synchronization detection at the same timing to prevent any jitter, and an image forming apparatus using the apparatus. In a multi-beam scanning apparatus which guides a plurality of light beams emitted from a light source to an optical deflector, guides the plurality of light beams deflected by the optical deflector onto a target scanning surface through a scanning lens system, and guides some of the plurality of light beams deflected by the optical deflector to a synchronization detecting unit to execute synchronization using a sync signal obtained by the synchronization detecting unit, the synchronization detecting unit includes a BD slit which determines the synchronization detecting timing, and the BD slit has a smooth member.
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patent: 6166376 (2000-12-01), Kamioka
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patent: 2003/0043441 (2003-03-01), Azami et al.
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patent: 11-242171 (1999-09-01), None
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Dulaney Benjamin
Lamb Twyler
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