Patent ID: 8721049
Filing Date: 2014-05-13
Classification: B41J

Abstract:
1. An inkjet printhead comprising a plurality of nozzle chambers disposed on a substrate, each nozzle chamber comprising: a floor having an ink inlet defined therein; a roof having a nozzle aperture defined therein; perimeter sidewalls extending between the floor and the roof, the ink inlet being defined in the floor within the perimeter sidewalls; and a heater element suspended in the nozzle chamber, the heater element being connected to a pair of electrodes so as to heat fluid within the nozzle chamber thereby forming a gas bubble in the fluid which causes ejection of fluid through the nozzle aperture, wherein: the ink inlet is laterally offset from the nozzle aperture; and a plane of the heater is parallel with a plane of the roof, the heater element is aligned with the nozzle aperture and laterally offset from the ink inlet; and a planar member is suspended over the ink inlet.