Method to correct for malfunctioning ink ejection elements...

Details Method to correct for malfunctioning ink ejection elements... Method to correct for malfunctioning ink ejection elements...

2005-03-08

2005-03-08

Meier, Stephen D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S040000, C347S041000

Reexamination Certificate

active

06863361

ABSTRACT:
Described is a method which corrects for malfunctioning or inoperable ink ejection elements in a one-pass printmode. The method comprises obtaining the standard printmask; identifying the ink ejection elements which are malfunctioning; ascertaining ink ejection elements adjacent to the ejection elements which are malfunctioning; selecting particular adjacent ink ejection elements from the adjacent ink ejection elements; and modifying the standard printmask by adjusting the amount of ink deposited by the selected adjacent ink ejection elements to create a modified printmask.

REFERENCES:
patent: 6347855 (2002-02-01), Takanaka
patent: 6520623 (2003-02-01), Miyake et al.
patent: 20010028371 (2001-10-01), Su et al.
patent: 20020021325 (2002-02-01), Koitabashi et al.
patent: 0863004 (1998-09-01), None
patent: 1033251 (2000-09-01), None
patent: 1084847 (2001-03-01), None
patent: 1147910 (2001-10-01), None

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