Printing apparatus and correction data generating method

Details Printing apparatus and correction data generating method Printing apparatus and correction data generating method

2006-04-13

2010-02-23

Thompson, James A (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Plural marking means

C358S003060, C358S003240, C358S504000

Reexamination Certificate

active

07667867

ABSTRACT:
A printing apparatus for measuring proper density and generating correction data with high accuracy by eliminating influences of adjoining areas. A plurality of scanning coordinates SAx are set to a middle position in a primary scanning direction of each of pixel lines Q on a test chart. Scanning areas SA are set to positions where the scanning coordinates SAx intersect scanning coordinates SAy indicating numerous positions in a secondary scanning direction of the pixel lines Q. Density data of the scanning areas SA is averaged to generate correction data for updating a correction table.

REFERENCES:
patent: 6292209 (2001-09-01), Nakamura et al.
patent: 7324238 (2008-01-01), Inoue
patent: 7508546 (2009-03-01), Shimoji et al.
patent: 2003/0210412 (2003-11-01), Ishibashi
patent: 10-329381 (1998-12-01), None
patent: 2001-142162 (2001-05-01), None

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