Printing device and control method thereof

Details Printing device and control method thereof Printing device and control method thereof

2003-06-26

2008-03-25

Nguyen, Lamson (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S041000, C358S001200

Reexamination Certificate

active

07347521

ABSTRACT:
A printing device comprising print heads having discharging elements arranged in (a) linear array(s) and a control method thereof is disclosed enabling to overcome or at least reduce the visibility to the human eye of systematic image dot-size variations, i.e. differences in dot-size of printed dots attributable to groups of discharging elements of print heads of the printing device. Therefore, on the basis of the dot-size differences of dots printed by different groups of discharging elements, the print heads and the image-receiving member displacement means are controlled such that in operation, for a given print mask, an optimal number of discharging elements is actually image-wise activated and an optimal displacement distance in the sub scanning direction is determined.

REFERENCES:
patent: 4198642 (1980-04-01), Gamblin
patent: 0 931 664 (1999-07-01), None
patent: 1 120 269 (2001-08-01), None
patent: 1 129 852 (2001-09-01), None

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