Systems and methods for sensing skew and bow of a raster...

Details Systems and methods for sensing skew and bow of a raster... Systems and methods for sensing skew and bow of a raster...

2007-03-20

2007-03-20

Tran, Huan (Department: 2861)

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

C399S301000

Reexamination Certificate

active

10998986

ABSTRACT:
System and methods are provided for detecting color separation misalignment in raster optical scanners. A dash minimum response curve is obtained from a plurality of minimal responses sensed from a plurality of dashes in a test pattern. The frequency of the dash minimum response curve a is used to detect skew or bow, depending on whether the frequency is a constant or a variable.

REFERENCES:
patent: 2006/0114282 (2006-06-01), Mizes et al.
patent: 2006/0114283 (2006-06-01), Mizes et al.

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