Optical-scanning apparatus and image forming apparatus

Details Optical-scanning apparatus and image forming apparatus Optical-scanning apparatus and image forming apparatus

2007-04-26

2008-08-19

Pyo, Kevin (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S234000, C347S261000, C359S216100

Reexamination Certificate

active

07414239

ABSTRACT:
An optical-scanning apparatus is disclosed. In at least one embodiment, the optical-scanning apparatus includes a light deflector to deflect a beam from a light source; and an optical housing including a scanning-image optical system to focus the beam to scan a photo conductive photo receptor therewith as a light spot. The optical housing includes a collection member to collect particulate materials. The collection member includes a structure combining or overlapping plural sheet-shaped members, each including a highly-chargeable electrostatic absorption filter. Alternatively, the collection member includes an electrostatic absorption filter and a breathable sheet-shaped member covering almost all the surface of the electrostatic absorption filter.

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