Rounded capillary vent system for ink-jet printers

Details Rounded capillary vent system for ink-jet printers Rounded capillary vent system for ink-jet printers

1991-07-29

1993-06-01

Fuller, Benjamin R.

Recorders

Markers and/or driving means therefor

With ink supply to marker

B41J 2165

Patent

active

052164497

ABSTRACT:
A rounded capillary vent system for ink-jet printers in which an ethylene propylene diene monomer (EPDM) element having a basin formed on a substantially planar surface is mounted on the under side of a nylon sled. An EPDM cap for a printhead is mounted on the top surface of the sled. A vent is defined between a semicircular groove formed on the under side of the nylon cover and the EPDM planar surface. The vent extends from the edge of the cover to a location over the basin. Ink from the printhead collects in the basin and at least some of the collected ink drains through the vent. Ink in the vent collects in the corners formed at the juncture of the EPDM material and polycarbonate cover. The capillary space between the EPDM material and the nylon cover draws the collected ink thereinto thus preventing vent clogging.

REFERENCES:
patent: 4437105 (1984-03-01), Mrazek et al.
patent: 4511906 (1985-04-01), Hara
patent: 4589000 (1986-05-01), Koto et al.
patent: 4684963 (1987-08-01), Naka
patent: 4853717 (1989-08-01), Harmon et al.
patent: 5027134 (1991-06-01), Harmon et al.

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