Patent ID: 7207650
Filing Date: 2007-04-24
Classification: B41J

Abstract:
1. An apparatus for discharging liquid which is provided with a head having liquid discharge parts for discharging droplets from nozzles, wherein, the head has a plurality of head chips staggeringly arranged thereon, the plurality of head chips having a plurality of the liquid discharge parts collaterally arranged therein, the plurality of head chips are so arranged in the staggering manner as to overlap at a plurality of said liquid discharge parts of adjacent head chips when viewed from the feed direction of a recording medium, so that mixed dots by said adjacent head chips are formed at said overlapped liquid discharge parts, the adjacent head chips alternately undertaking a dot forming operation at said overlapped parts along an arrangement direction of the nozzles, and that the alternate undertaking operation is repeated along the feed direction of the recording medium, and the distance between nozzles of staggeringly arranged adjacent head chips is set to be even number multiple of one pitch which corresponds to a feed length for one line of the recording medium.