CPC B41J 2/2132 (2013.01) [B41J 2/04593 (2013.01); B41J 13/12 (2013.01); G06K 15/105 (2013.01); H04N 1/409 (2013.01); H04N 1/4057 (2013.01); H04N 1/58 (2013.01)] | 20 Claims |
1. An apparatus comprising:
a print head configured to selectively emit ink toward a print area to generate a printed image, the print head, relative to the print area, configured to pass across the print area along a first linear axis to provide the printed image; and
a controller configured:
to receive a representation of an image to be printed;
based on the representation, to provide first control signals for controlling emission of the ink from the print head in each of a plurality of single print passes of the print head;
to apply one or more filters to the first control signals to provide second control signals that control droplet sizes of the ink from a plurality of ink jet nozzles of the print head; and
to control motion of the print head to execute multiple passes of the print head across the print area along the first linear axis according to the second control signals in place of each single print pass according to the first control signals;
wherein the droplet sizes pursuant to the second control signals differ between the plurality of ink jet nozzles within a given print pass of the multiple passes of the print head along the first linear axis so as to reduce visual banding of the image to be printed.
|