Ink-jet printhead cap having suspended lip

Details Ink-jet printhead cap having suspended lip Ink-jet printhead cap having suspended lip

1994-11-16

1995-09-05

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2165

Patent

active

054482704

ABSTRACT:
An improved ink-jet printhead cap is described. In its preferred embodiment, the cap has a sealing lip, which extends peripherally around the generally planar expanse of the cap, the lip being suspended by a horizontal, resiliently deflectable, elastomer span that is supported on either end by vertical supports that define a channel dimensioned to receive partway therein the annular boss of a cap mount mounted on a sled. In cross section, the lip is centered above the channel, protrudes upwardly from an upper surface of the horizontal span, and tapers inwardly and upwardly substantially to a point, thus providing a conformable, focal impact point for sealingly engaging a printhead. The amount of force required to deflect the lip may be controlled by varying the thickness of the horizontal span and the distance between vertical supports.

REFERENCES:
patent: 5146243 (1992-09-01), English et al.
patent: 5210550 (1993-05-01), Fisher et al.

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