Optical system for the correction of differential scanline bow

Details Optical system for the correction of differential scanline bow Optical system for the correction of differential scanline bow

1994-12-19

1996-06-11

Dzierzynski, Paul M.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359212, G02B 2608

Patent

active

055261663

ABSTRACT:
The present invention is an apparatus for eliminating differential scanline bow in a raster output scanner (ROS) printing system. The apparatus employs a field lens device at the output of a pre-scanning optical assembly in order to direct the laser beams toward the scanning surface, or facet, at a right angle to the scanning surface, thereby eliminating a source of scanline bow.

REFERENCES:
patent: 4390235 (1983-06-01), Minoura
patent: 4474422 (1984-10-01), Kitamura
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patent: 4895790 (1990-01-01), Swanson et al.
patent: 4962983 (1990-10-01), Watanabe
patent: 5161040 (1992-11-01), Yokoyama et al.
patent: 5257048 (1993-10-01), Genovese
patent: 5257132 (1993-10-01), Ceglio et al.
patent: 5300962 (1994-04-01), Genovese
Frank C Genovese, "Compound Optics for a Raster Output Scanner in an Electrophotographic Printer," Xerox Disclosure Journal, vol. 18, No. 1, Jan./Feb. 1993, pp. 87-93.

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