Patent ID: 6779871
Filing Date: 2004-08-24
Classification: B41J

Abstract:
An inkjet recording head which scans in a direction intersecting a conveyance direction of a recording medium and records an image on the recording medium with ink drops ejected from nozzles, the inkjet recording head comprising:a nozzle plate in which the nozzles which eject the ink drops are formed; pressure chambers communicating with the nozzles; actuators abutting at the pressure chambers, which at least one of increase and reduce pressures of ink in the pressure chambers; and a plurality of nozzle rows parallel to the conveyance direction of the recording medium, wherein the inkjet recording head includes at least two nozzle groups which are grouped over a plurality of the nozzle rows, and each nozzle group is offset, relative to a neighboring nozzle group, in a direction intersecting a row direction of the nozzle rows such that the nozzle groups are arranged in a staggered form, and the numbers of nozzles in the nozzle rows of each nozzle group decrease in the direction intersecting the row direction, from the nozzle row at a side furthest from the neighboring nozzle group to the nozzle row at a side closest to the neighboring nozzle group.