Patent ID: 8556387
Filing Date: 2013-10-15
Classification: B41J

Abstract:
1. An ink jet head unit comprising: a head having a first surface and a second surface which is opposite relative to said first surface, the first surface comprising a first nozzle array and a second nozzle array which is arranged parallel to said first nozzle array with a predetermined spacing, each of said first and second nozzle arrays having plural nozzle holes for ejecting ink; a plurality of flexible flat cables, each of said flat cables comprising a transmission wire for driving said head; a plurality of connectors provided on a fixing part of said second surface of said head, said connectors being connected with said flat cables, respectively, wherein said fixing part is opposite to an area between said first nozzle array and said second nozzle array in said first surface; and a metallic interference preventing member or a nonmetallic interference preventing member in which a metal layer is formed, wherein said interference preventing member is arranged at least partly between said flat cables.