Patent ID: 6084618
Filing Date: 2000-07-04
Classification: B41J

Abstract:
An ink jet cartridge comprising:a body;an ink reservoir within said body and adapted to hold ink;a plumbing channel within said body and having an inlet in fluid communication with said ink reservoir and an outlet; anda printhead in fluid communication with said outlet of said plumbing channel, and including.a heater chip having an inlet side, an outlet side, and a plurality of vias extending between said inlet side and said outlet side;a filter bonded onto said inlet side of said heater chip and having a plurality of throughholes, each said throughhole having a first end and a second end, said first end being in direct fluid communication with said plumbing channel, said second end being in direct fluid communication with said vias in said heater chip; anda nozzle plate bonded to said outlet side of said heater chip.