Patent ID: 8967748
Filing Date: 2015-03-03
Classification: B41J

Abstract:
1. A printing device which forms a first image using a first ink and forms a second image on the first image using a second ink, comprising: first nozzles that are capable of ejecting the first ink; second nozzles that are capable of ejecting the second ink; and a controller that performs an image forming operation that moves the first nozzles and the second nozzles in an inward path or outward path of a main scanning direction, and on a medium forms a first dot of the first ink and a second dot of the second ink; wherein the controller performs the image forming operation to control moving the first nozzles and the second nozzles in the main scanning direction without forming either of the first dot by a part of the first nozzles or the second dot by a part of the second nozzles due to the presence of one or more unused nozzles that do not eject ink, such moving occurring during a period extending from a time after the first dot is formed using the first ink on the medium to a time before the second dot is formed on at least a portion of the first dot; and wherein in one image forming operation, a number of used first nozzles that eject the first ink differs from a number of used second nozzles that eject the second ink.