Banding reduction in incremental printing

Details Banding reduction in incremental printing Banding reduction in incremental printing

2005-06-14

2005-06-14

Nguyen, Thinh (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

06905191

ABSTRACT:
A method of printing with a printer of the type comprising a substantially linear arrangement of parallel pens mounted on a scan axis, each pen comprising an array of ink ejection elements, comprises printing a plurality of swaths, each from a different pen, on a printing medium between successive incremental advances of said medium in a printing advance direction (PAD) relative to the pens wherein said swaths are printed such that the boundaries of at least two of the swaths are offset from one another in the PAD. In a preferred method of the invention, the nozzles of the various pens are divided into active and inactive sets of nozzles, such that only the active nozzles are used to print the swaths and so that the different active nozzle sets each have offset endpoints in the PAD to print offset swath boundaries.

REFERENCES:
patent: 4855752 (1989-08-01), Bergstedt
patent: 5568168 (1996-10-01), Watanabe
patent: 0 827 839 (2002-03-01), None
patent: 2 361 670 (2001-10-01), None

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