Patent ID: 8328311
Filing Date: 2012-12-11
Classification: B41J

Abstract:
1. A printing apparatus comprising: a scanning unit configured to reciprocally scan, along a scanning axis, a printing head relative to a print medium, wherein the printing head comprises: a first nozzle array which ejects first ink droplets, a second nozzle array arranged on a side of the first nozzle array, crossing the scanning axis, and which ejects second ink droplets which are smaller than the first ink droplets, and a third nozzle array arranged on an opposite side of the first nozzle array, crossing the scanning axis, and which ejects third ink droplets which are smaller than the first ink droplets; and a controller configured to control printing rates of the second and third nozzle arrays, such that a printing rate of a nozzle array, which is one of the second and third nozzle arrays, located on a side of the first nozzle array in a direction of scan of the printing head, is lower than a printing rate of a nozzle array, which is the other of the second and third nozzle arrays, located on a side of the first nozzle array in an opposite direction of scan of the printing head.