PRIMING SYSTEM FOR INKJET PRINTHEADS

摘要

Disclosed is a priming system for inkjet printheads that includes at least one inkjet printhead. Each inkjet printhead includes one or more single color inkjet chips. Further, the priming system includes at least one ink supply unit. Each ink supply unit is fluidly coupled to a corresponding single color inkjet chip for supplying ink to the corresponding single color inkjet chip. Furthermore, the priming system includes a pumping member that includes at least one pumping head. A pumping head is fluidly coupled to the corresponding single color inkjet chip to receive the ink from the corresponding single color inkjet chip, and to a corresponding ink supply unit to pump the ink back into the corresponding ink supply unit.

主权项

1. A printing apparatus, comprising:
a plurality of inkjet printheads, each of the plurality of inkjet printheads comprising one or more inkjet chips; a plurality of ink supply units, each fluidly coupled and supplying ink to a corresponding inkjet chip; a plurality of fluid conduits, each fluidly coupled to a corresponding inkjet chip; and a plurality of pumping heads that each compress a portion of a corresponding fluid conduit to draw ink from the each respective inkjet chip; and a motor coupled to the plurality of pumping heads, the motor comprising a shaft member that selectively engages the plurality of pumping heads, wherein the plurality of fluid conduits are fluidly coupled to a waste site or one of the plurality of ink supply units so that the motor selectively engages the corresponding pumping head to pump the ink to the waste site or back to the one ink supply unit.