Patent ID: 9555626
Date: 2017-01-31
CPC Classifications: B41J

Claim:
1. A printer comprising: a conveying unit configured to convey a recording medium in a conveying direction; an inkjet head including a plurality of head units arranged in an alignment direction crossing the conveying direction, the inkjet head having end portions and a center portion between the end portions in the alignment direction, each of the plurality of head units having a plurality of nozzles and a plurality of drive elements, the plurality of nozzles and the plurality of drive elements having a one-to-one correspondence, each of the plurality of drive elements being configured to apply ejecting energy to ink to eject an ink droplet through a corresponding one of the plurality of nozzles, the plurality of head units including a first head unit and a second head unit, the second head unit having an ejection performance of nozzles lower than an ejection performance of nozzles of the first head unit, wherein the second head unit is farther from the center portion than the first head unit; and a drive unit configured to apply a drive voltage for generating the ejecting energy to each of the plurality of drive elements included in each of the plurality of head units, wherein the drive voltage applied to each of the plurality of drive elements included in the first head unit is lower than the drive voltage applied to each of the plurality of drive elements included in the second head unit.