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US 2012/0069074 A1Published application
Generating half tone print data for overlapping consecutive printhead segments
AssigneeSilverbrook Research Pty Ltd
InventorsSimon Robert Walmsley, Kia Silverbrook, Paul Lapstun
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Abstract
A method of generating half tone print data is disclosed. The method starts by determining an extent of overlap caused by temperature variations of overlapping end portions of a pair of consecutive printhead segments. A dither value is also generated from a dither matrix, and the dither value is combined with the extent of overlap to produce an output value. A mathematical operation is performed on continuous tone print data based on the output value, to produce the half tone print data.
Claims11
A method of generating half tone print data, the method comprising the steps of:
- determining an extent of overlap caused by temperature variations of overlapping end portions of a pair of consecutive printhead segments;
- generating a dither value from a dither matrix;
- combining the dither value with the extent of overlap to produce an output value;
- and
- performing a mathematical operation on continuous tone print data based on the output value, to produce the half tone print data.
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Dependencies are inferred from the claim text.