Printing method and apparatus
AssigneeHewlett-Packard Development Company, L.P.
InventorsAndreas Mueller, Jacint Humet Pous, Jaime Fernandez del Rio, Utpal Kumar Sarkar
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Abstract
An apparatus and method for use in printing a swath in a multipass printing device are disclosed. The method comprises selectively depositing a drop of ink associated with a pixel to be printed on a print media based on a substantially uniform print mask function during a first pass of a print head, and selectively depositing a further drop of ink associated with the pixel on the print media based on a ramp print mask function during a further pass of the print head.
Claims20
A method for use in printing a swath in a multipass printing device, the method comprising:
- for one layer of a multi-layer print mask, selectively depositing a drop of ink associated with a pixel to be printed on a print media based on a substantially uniform print mask function;
- and
- for another layer of the multi-layer print mask, selectively depositing another drop of ink associated with the pixel on the print media based on a non-uniform print mask function.
An apparatus for printing a swath using a plurality of passes over a print medium, the apparatus comprising:
- a print head comprising an array of nozzles;
- a controller coupled to the print head and configured to cause the array of nozzles to selectively deposit a drop of ink for a single pixel location of an image to be printed on a print medium based on a substantially uniform print mask function during one pass of the print head for printing the swath, and to selectively deposit another drop of ink for the single pixel location based on a non-uniform print mask function during another pass of the print head for printing the swath.
A non-transitory computer program code comprising instructions that, when executed, cause an array of nozzles carried on a print head to:
- for one layer of a multi-layer print mask, selectively deposit a drop of ink associated with a pixel to be printed on a print media based on a substantially uniform print mask function during one pass of the print head in printing a swath;
- and
- for another layer of the multi-layer print mask, selectively deposit another drop of ink associated with the pixel on the print media based on a non-uniform print mask function during another pass of the print head in printing the swath.
Dependencies are inferred from the claim text.