CPC B41J 2/04505 (2013.01) [B41J 2/04541 (2013.01); B41J 2/04573 (2013.01); B41J 2/04586 (2013.01)] | 13 Claims |
1. A method of printing an image from a printhead module having a plurality of horizontal ink planes M supplied with a same ink, each ink plane having at least one nozzle row, the nozzles rows of all ink planes having vertically aligned nozzles, the method comprising the steps of:
defining contiguous span groups along each nozzle row, each span group containing N nozzles;
allocating dot data for each image line of the image to a predetermined number of nozzles P in each span group of each nozzle row;
sending the dot data to the printhead module and firing nozzles, based on the dot data, sequentially from each of the M ink planes to print the image line of the image such that all ink planes contribute dots to the printed image line,
wherein:
only one nozzle from each span group in a same nozzle row is fired simultaneously;
N is an integer multiple of M; and
P is N divided by M.
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