Patent ID: 8517491
Filing Date: 2013-08-27
Classification: B41J

Abstract:
1. A printing apparatus comprising: a liquid ejecting head comprising: a plurality of nozzles including a plurality of first nozzles belonging to a first group and a plurality of second nozzles belonging to a second group, a driving unit configured to cause liquid to be ejected from each of the plurality of nozzles and to fly as liquid droplets, the driving unit including a first driving unit corresponding to the plurality of first nozzles and a second driving unit corresponding to the plurality of second nozzles, a plurality of charging electrodes configured to selectively charge flying liquid droplets from each of the plurality of nozzles, a deflecting electrode configured to form an electric field to deflect each liquid droplet charged by the plurality of charging electrodes, and a plurality of common wirings, one of the plurality of common wirings being electrically connected commonly to one of a plurality of first charging electrodes and one of a plurality of second charging electrodes of the plurality of charging electrodes and another of the plurality of common wirings being connected to another of the plurality of first charging electrodes and another of the plurality of second charging electrodes of the plurality of charging electrodes; and a controller configured to control so as to drive the first driving unit and the second driving unit at different phases from each other, and to apply a charging voltage to each of the plurality of the first charging electrodes and the plurality of the second charging electrodes via the plurality of the common wirings.