Process preventing air bubble lock in ink jet nozzles

Details Process preventing air bubble lock in ink jet nozzles Process preventing air bubble lock in ink jet nozzles

1983-12-08

1985-08-06

Lawrence, Evan K.

Coating processes

Removable protective coating applied

427230, 427309, B05D 310, B05D 500, B05D 722

Patent

active

045335699

ABSTRACT:
A process for treating the interior surface area of a glass nozzle for use in an ink jet printer device. The process includes cleaning of the surface area with a hydrofluoric acid solution under controlled conditions, rinsing and then protecting the cleaned area with a blocking agent to prevent contamination by the atmosphere prior to use of the nozzle in a printer device. The disclosed process is useful in minimizing air bubble formation and lock within the nozzle during use, and in facilitating ejection or purging of such air bubbles as may become ingested by the nozzle during service.

REFERENCES:
patent: 2292097 (1942-08-01), Vollmer
patent: 3573950 (1971-04-01), Domicone
patent: 4343013 (1982-08-01), Bader et al.
Xerox Disclosure Journal, vol. 7, No. 5, Sep./Oct., 1982, p. 321.

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