Optical device for image forming apparatus

Details Optical device for image forming apparatus Optical device for image forming apparatus

1992-07-31

1993-06-08

Moses, R. L.

Photocopying

Contact printing

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355233, 346157, 359819, G03G 1501

Patent

active

052184137

ABSTRACT:
An optical device provided in an image forming apparatus and having a laser for emitting a beam, a polygonal mirror for deflecting the beam in a scanning direction, and optical members including an elongated cylindrical lens for directing the deflected beam onto a surface of a photosensitive member. In the optical device, distortion of a scan line of the beam scanned on the surface of the photosensitive member is amended by adjusting the degree of curvature of the cylindrical lens in a plane perpendicular to an optical path.

REFERENCES:
patent: 4731623 (1988-03-01), Oda et al.
patent: 4847644 (1989-07-01), Oda et al.

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