Patent ID: 7926894
Filing Date: 2011-04-19
Classification: B41J

Abstract:
1. A printing apparatus, comprising: (A) a carry mechanism that carries a medium along a predetermined direction; (B) a nozzle that performs a moving and ejecting operation for ejecting ink toward the medium while moving relatively with respect to the medium in an intersecting direction that intersects the predetermined direction, during an interval of a carry operation by the carry mechanism, the nozzle ejecting a first ink droplet and ejecting, after the first ink droplet has been ejected, a second ink droplet that has a size different from a size of the first ink droplet, the second ink droplet being ejected in between two first ink droplets ejected in one moving and ejecting operation; and (C) a signal output section that outputs a first timing defining signal defining periodically in a predetermined period an ejecting timing for ejecting the first ink droplet from the nozzle toward a position corresponding to a pixel configuring an image to be printed, and a second timing defining signal defining periodically in a predetermined period an ejecting timing for ejecting the first ink droplet from the nozzle toward a position displaced in the intersecting direction from the position corresponding to a pixel configuring an image to be printed, wherein the signal output section outputs either the first timing defining signal or the second timing defining signal in one moving and ejecting operation, and wherein one raster line is formed by at least one or more times of the first timing defining signal and at least one or more times of the second timing defining signal being used in two or more moving and ejecting operations, and by a plurality of dots being formed with the first ink droplet and the second ink droplet on the medium.