| US 7,520,583 B2 | ||
| Printing device, printing program, printing method, image processing device, image processing program, image processing method, and recording medium in which the program is stored | ||
| Shinichi Arazaki, Shimosuwa-machi (Japan); Naoki Kayahara, Chino (Japan); Toru Takahashi, Matsumoto (Japan); and Hiroaki Sakai, Chino (Japan) | ||
| Assigned to Seiko Epson Corporation, (Japan) | ||
| Filed on Mar. 27, 2006, as Appl. No. 11/389,938. | ||
| Claims priority of application No. 2005-094763 (JP), filed on Mar. 29, 2005; and application No. 2005-353530 (JP), filed on Dec. 07, 2005. | ||
| Prior Publication US 2006/0244774 A1, Nov. 02, 2006 | ||
| Int. Cl. B41J 2/205 (2006.01) | ||
| U.S. Cl. 347—15 [347/19] | 7 Claims |
| 1. A printing device comprising:
a print head having a plurality of nozzles which can print dots in different sizes;
a discharge deviation characteristic information acquirer for acquiring data related to an amount of space between a dot printed
by one of the plurality of nozzles and a predetermined target for the dot;
an image data acquirer for acquiring M-level image data (M≧3), which includes a plurality of pixel values corresponding to
at least three characteristics of the dot, the at least three characteristics including at least one of brightness of the
dot and density of the dot;
a deviated pixel identifier for identifying a pixel relating to the dot;
a pixel value adjuster for adjusting the plurality of pixel values for the pixel identified by the deviated pixel identifier;
an N-level data generator for generating N-level data (M>N≧2) in which the plurality of pixel values acquired by the image
data acquirer is categorized;
a print data generator for generating print data to which the dot has a size corresponding to the respective pixel on the
basis of the N-level data; and
a printer for executing printing based on the print data generated by the print data generator using the print head.
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