Moisture leakage resistant capping surface for ink jet printhead

Details Moisture leakage resistant capping surface for ink jet printhead Moisture leakage resistant capping surface for ink jet printhead

1993-08-11

1994-07-26

Grimley, A. T.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

298901, G01D 1516

Patent

active

053330072

ABSTRACT:
A printhead with a printhead die, an ink manifold and heat sink substrate has a continuous sealing surface surrounding the printhead die which is formed by the ink manifold, heat sink substrate and filler material disposed therebetween. The filler material acts as caulking to eliminate gaps around the printhead die, particularly between the ink manifold and heat sink substrate, and to provide a smooth surface for abutment with a capping member. A fluid-tight seal is obtained between the capping member and the continuous sealing surface on the printhead, thus preventing the drying out of ink in the nozzles through evaporation of volatile ink components. In some priming nozzle configurations, the leaktight seal also facilitates priming of the printhead.

REFERENCES:
patent: 4390883 (1983-06-01), Stoneburner
patent: 4678529 (1987-07-01), Drake et al.
patent: 4777494 (1988-10-01), Shibata et al.
patent: 4914562 (1990-04-01), Abe et al.
patent: 4922269 (1990-05-01), Ikea et al.
patent: 5065170 (1991-11-01), Rezanka et al.
patent: 5117244 (1992-05-01), Yu

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