N-channel screening tool

Details N-channel screening tool N-channel screening tool

2007-02-13

2007-02-13

Rogers, Scott A. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003210, C358S003260, C358S534000, C358S504000, C347S240000

Reexamination Certificate

active

10166955

ABSTRACT:
A number of lasers (402) used to image a bitmap file (630) of a halftone screen is comprised of generating a first bitmap file (630) for a first color. A first image (710) is printed with the first bitmap file for the first color with n lasers. A second image (720) is printed with the first bitmap file for the first color with n−1 lasers. An optimum number of lasers is selected for printing the first bitmap file based on the image with the least number of defects (700).

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patent: 6597388 (2003-07-01), Pierson
patent: 6623894 (2003-09-01), Pierson
patent: 6710795 (2004-03-01), Sanger
patent: 6888558 (2005-05-01), Pierson

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