| 摘要 |
The image forming apparatus comprises: a plurality of nozzles; a plurality of liquid supply channels each of which is communicated with a corresponding one of the plurality of nozzles and supplies a liquid to the corresponding one of the plurality of nozzles; a plurality of drive elements each of which applies pressure in the liquid in a corresponding one of the liquid supply channels so as to eject the liquid as a droplet from the corresponding one of the plurality of nozzles; a pressure determination device which is arranged through the plurality of liquid supply channels and determines a pressure of the liquid in each of the liquid supply channels applied by a corresponding one of the plurality of drive elements, the pressure determination device being separated from the plurality of drive elements; and a failed ejection detection device which detects failed ejection of the droplet from each of the plurality of liquid supply channels according to the pressure determined by the pressure determination device.
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