Method and apparatus for storing and supplying ink to a thermal

Details Method and apparatus for storing and supplying ink to a thermal Method and apparatus for storing and supplying ink to a thermal

1994-01-03

1998-07-28

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 2175

Patent

active

057868344

ABSTRACT:
A method an apparatus for storing and supplying liquid ink to a thermal ink-jet printer includes a printhead that has ink ejection nozzles and an ink supply housing connected to the printhead. The ink supply housing defines an ink storage chamber, and an ink flow path communicating with the printhead and ink storage chamber. An ink storage medium and a scavenger member are placed in the ink storage chamber for retaining, and controllably supplying a quantity of liquid ink from the chamber within a desirable back pressure range at the printhead. The ink storage medium is a medium density non-reticulation process produced copolymer polyurethane foam consisting essentially of a blend of polyether and polyester materials.

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