Modifying image data to compensate for defective printer nozzles
AssigneeElectronics for Imaging, Inc.
InventorSteven Billow
Life of this patent
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Abstract
The disclosed embodiments include a method to compensate for defective printer nozzles. The method can include detecting a defective printer nozzle and initiating a print job including image data of the defective printer nozzle for a pixel location of an image. The image is to be printed in accordance with a print mask that maps printer nozzles to pixel locations of the image. The method can include modifying the image to print the image data in a neighboring pixel location relative to the pixel location of the image and printing the modified image.
Claims11
A method for addressing a defective printer nozzle among a plurality of printer nozzles, the method comprising:
- obtaining image data that is to be used to print an image formed of raster rows and raster columns on a medium in accordance with a print mask that maps to defective printer nozzle to a pixel at a first location;
- and
- modifying the image data such that the pixel is printed by another printer nozzle of the plurality of printer nozzles at a second location that is different than the first location,
- wherein the other printer nozzle is able to eject ink in the same raster rows as the defective printer nozzle but in opposite odd or even positions.
Dependencies are inferred from the claim text.