Ink jet cartridge having replaceable ink supply tanks with an in

Details Ink jet cartridge having replaceable ink supply tanks with an in Ink jet cartridge having replaceable ink supply tanks with an in

1997-10-08

1999-10-26

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 2175

Patent

active

059715316

ABSTRACT:
An ink jet cartridge for use in an ink jet printer has replaceable ink supply tanks. The cartridge includes a housing with an integrally mounted printhead, at least one ink pipe connector protruding from a floor thereof, and internal passageways which interconnect the ink pipe connectors and printhead. The replaceable ink supply tanks, one for each color and each ink pipe connector, contain an ink saturated foam or needled felt member, an ink outlet port, and a filter element which covers the ink outlet port. When the ink supply tank is installed in the cartridge housing, the ink pipe connector extends through the outlet port of the tank and deforms the filter element into compressive contact with the foam or needled felt member. Whenever an ink depleted ink supply tank is replaced with a new ink supply tank, a fresh filter element is available for the cartridge, thus preventing degradation of the cartridge filters during the useful life of the cartridge.

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Patent Abstracts of Japan, Jan. 27, 1995, vol. 095, No. 004.

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