Patent ID: 8899710
Filing Date: 2014-12-02
Classification: B41J

Abstract:
1. A liquid discharge apparatus comprising: a head provided with a plurality of discharge units including a first discharge unit including a first nozzle for discharging a liquid, a first pressure chamber that is communicated with the first nozzle, and a first driving element that is provided so as to correspond to the first pressure chamber, and a second discharge unit including a second nozzle for discharging a liquid, a second pressure chamber that is communicated with the second nozzle, and a second driving element that is provided so as to correspond to the second pressure chamber, wherein the liquid discharge apparatus causes a liquid to be discharged through the first nozzle by applying a first driving signal to the first driving element, wherein the liquid discharge apparatus causes a liquid to be discharged through the second nozzle by applying a second driving signal to the second driving element, wherein the first driving signal is different from the second driving signal, wherein, with respect to the first nozzle, it is determined on the basis of an image, detected by a first sensor, which is formed by causing the liquid to be discharged through the first nozzle whether or not the first nozzle causes a liquid discharge failure, and wherein, with respect to the second nozzle, it is determined on the basis of a detection signal, detected by a second sensor, which is obtained by applying the second driving signal to the second driving element whether or not the second nozzle corresponding to the second driving element causes a liquid discharge failure.