Interface seal between printhead and ink supply cartridge

Details Interface seal between printhead and ink supply cartridge Interface seal between printhead and ink supply cartridge

1993-12-20

1999-04-27

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 2175

Patent

active

058984496

ABSTRACT:
An ink cartridge for an ink jet printer has an ink supply in a housing, a printhead fixedly attached thereto, and an interface seal between the housing and printhead. The ink is contained in an absorbent material in the housing which is partitioned from the printhead assembly by a housing wall having a vent and an ink outlet. The ink flow path from the housing outlet to the printhead inlet is produced by a recess in the outer surface of the housing wall covered by the interface seal. The seal is a porous member having a thermosetting adhesive layer on one side thereof. The porous member has a slot therethrough, and the adhesive is the type not attacked by the ink. The surface of the porous member with the adhesive is bonded to the housing wall. The thermosetting adhesive moves through the porous member and bonds to the printhead surface containing the ink inlet to the housing wall, when the adhesive is cured. The printhead ink inlet is of similar size and aligned with the porous member slot, so that the thermosetting adhesive assists in the attachment of the printhead assembly to the housing and concurrently provides the fluid seal between the housing and the printhead assembly.

REFERENCES:
patent: 4678529 (1987-07-01), Drake et al.
patent: 4771295 (1988-09-01), Baker et al.
patent: 4774530 (1988-09-01), Hawkins
patent: 4791438 (1988-12-01), Hanson et al.
patent: 4864329 (1989-09-01), Kneezel et al.
patent: 5233369 (1993-08-01), Carlotta et al.
patent: 5289212 (1994-02-01), Carlotta
Xerox Disclosure Journal, vol. 16, No. 4, Jul./Aug. 1991, p. 233.

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