Method of generating halftone print data for overlapping...

Details Method of generating halftone print data for overlapping... Method of generating halftone print data for overlapping...

2009-04-14

2010-06-29

Huffman, Julian D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

07744183

ABSTRACT:
A method of generating halftone print data for overlapping end portions of a pair of consecutive printhead segments in an array of two or more printhead segments. Generally an end portion of a first printhead segment overlaps an end portion of a second printhead segment, in which each printhead segment includes a plurality of ink ejection nozzles. The method includes generating a dither value from a dither matrix, and then combining the dither value with an overlap signal, which represents an extent of overlap of the end portions, to produce an output value. A mathematical operation is then performed on continuous tone print data using a comparator, based on the output value, to produce the half tone data.

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