Ink-jet recording head

Details Ink-jet recording head Ink-jet recording head

1994-07-22

1998-07-28

Hartary, Joseph W.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 47, B41J 2135, B41J 216

Patent

active

057868328

ABSTRACT:
An ink-jet recording head has ejection outlets formed by treating a face of a plate for the ejection outlets with a water-repellent and irradiating the plate with a laser beam from the backside of the plate. The head is provided with a sealing member for sealing the ejection outlets. The water-repellent has a hardness of higher than the pencil hardness 6B at room temperature. A decomposition product layer is formed on the layer of the water repellent at peripheral portions of the ejection outlets.

REFERENCES:
patent: 4368476 (1983-01-01), Uehara et al.
patent: 4524104 (1985-06-01), Hagio et al.
patent: 5059973 (1991-10-01), Watanave

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