Apparatus and method for ink jet printing
AssigneeCanon Kabushiki Kaisha
InventorHitoshi TSUBOI
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Abstract
An object of the present invention is to provide an apparatus and method for ink jet printing which can reduce density unevenness caused by an end deviation condition associated with ink droplets ejected from a print head, regardless of gray scale of a printed image. The present invention thus sets the print duty for a nozzle located at an end of a nozzle array formed in a print head on the basis of the end deviation amount of a position impacted by an ink droplet ejected from the end of the nozzle array.
Claims17
An ink jet printing apparatus which executes printing by executing a scanning a print head relative to a print medium using a print head, the print head having a nozzle array in which a plurality of ink ejecting nozzles are arranged, the apparatus comprising print duty setting means for setting a print duty for a nozzle located at an end of the nozzle array on the basis of an end deviation amount corresponding to an error in a landing position of an ink droplet ejected from the end of the nozzle array.
A method for ink jet printing which executes printing by scanning a print head relative to a print medium, the print head having a nozzle array in which a plurality of ink ejecting nozzles are disposed, wherein a print duty for nozzles located at an end of the nozzle array on is set the basis of an end deviation amount that is an error in a landing position of an ink droplet ejected from the end of the nozzle array.
Dependencies are inferred from the claim text.