Ink-jet printing apparatus and ink-jet printing method
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United States of America Patent
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May 15, 2001
Grant Date -
N/A
app pub date -
Feb 9, 1998
filing date -
Feb 14, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In the present invention, a processing liquid and an ink are ejected so that ejected regions of the processing liquid ejected in each scan by a printing head and image regions printed by black (Bk) ink printed in each scan are mutually shifted in an auxiliary scanning direction. By this, when ejection of the processing liquid is to be performed in each scan, the image region of the Bk ink ejected on the processing liquid in the preceding scan is offset from a boundary of the region, to which the processing liquid is to be ejected. Therefore, overlapping of the processing liquid on the portion where the Bk ink and the processing liquid are overlapped in the preceding scan, can be avoided. Accordingly, when printing is performed by ejecting the ink and the processing liquid which makes a coloring agent in the ink insoluble, drop-out or deterioration of color due to overlap of the processing liquid in the joint portion of the image formed in each scan by the printing head can be eliminated.
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