Ink-jet printing apparatus and ink-jet printing method for reduc

Details Ink-jet printing apparatus and ink-jet printing method for reduc Ink-jet printing apparatus and ink-jet printing method for reduc

1997-10-28

1999-12-28

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2938

Patent

active

060071818

ABSTRACT:
In a multi-scan method for printing a printing area by n (4) scans of a head and printing individual scan lines with n different ejection ports, a paper feed amount of transporting performed between the individual n scans is set to a value less than an amount of {(a length of total ejection port)/(n-1)}, and thereby close ejection ports in the ejection port arrangement in the head can be used as the n ejection ports for the individual lines, and an application position deviation between the ejection ports for individual lines due to a head mount error or the like can be reduced. As a result, unevenness of density due to deviation of dots in a scanning direction can be suppressed.

REFERENCES:
patent: 5500662 (1996-03-01), Watanabe
patent: 5604520 (1997-02-01), Matsubara et al.
patent: 5625391 (1997-04-01), Hirabayashi et al.
patent: 5654744 (1997-08-01), Nicoloff et al.
patent: 5684517 (1997-11-01), Clemente et al.
patent: 5754198 (1998-05-01), Nishikawa
patent: 5777640 (1998-07-01), Shioya et al.
patent: 5844585 (1998-12-01), Kurashima et al.

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