Patent ID: 8678532
Filing Date: 2014-03-25
Classification: B41J,G06K

Abstract:
1. A printing apparatus comprising: a first nozzle column configured with a plurality of nozzles aligned in a first direction; a second nozzle column configured with a plurality of nozzles aligned in the first direction, the second nozzle column corresponding to ink different from the ink corresponding to the first nozzle column; a moving mechanism relatively moving the first nozzle column and the second nozzle column in a second direction with respect to a printing medium, the second direction intersecting the first direction; a transporting mechanism relatively transporting the printing medium in the first direction with respect to the first nozzle column and the second nozzle column; and a controller performing controlling that forms an image on the printing medium by repeating an image forming operation of allowing the first nozzle column and the second nozzle column to eject ink and a transporting operation of allowing the printing medium to be transported, wherein the image forming operation includes the image forming operation of allowing the first nozzle column and the second nozzle column to be moved in a forward pass in the second direction and the image forming operation of allowing the first nozzle column and the second nozzle column to be moved in a backward pass in the second direction; wherein the controller performs controlling that wherein the second image nozzle group is different from the first image nozzle group with respect to the position in the first direction, and at least a portion of the second image is overlapped with the first image on the printing medium.