Ink jet printing apparatus and printing method

Details Ink jet printing apparatus and printing method Ink jet printing apparatus and printing method

2006-12-11

2010-06-01

Nguyen, Lamson D (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S015000, C347S043000

Reexamination Certificate

active

07726768

ABSTRACT:
A dark color (for example, cyan) ink dot formed by preliminary ejection can be made less noticeable, and the influence on the printing quality can be reduced, even in a case where the dark color ink is preliminarily ejected onto a light color (for example, yellow) image area. For this purpose, in a case where the dark color ink is preliminarily ejected onto the image area of high lightness, the amount of the ink applied for printing the area is reduced. For example, in a case where a cyan ink is preliminarily ejected onto an area to be formed of yellow dots, a piece of data for forming the yellow dot in the preliminary ejection position is deleted. This reduces an overlapping area of the yellow area and the ink dot formed by the preliminary ejection, and thus makes the ink dot formed by the preliminary ejection less noticeable.

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International Preliminary Report on Patentability, International Application No. PCT/JP2006/325122, filed on Dec. 11, 2006 (6 pages).

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