Ink jet print head using membrane

Details Ink jet print head using membrane Ink jet print head using membrane

1999-04-14

2000-10-10

Barlow, John

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 63, 347 65, B41J 204, B41J 205

Patent

active

061306908

ABSTRACT:
An ink jet print head comprises: a heating unit for heating working liquid provided through a working liquid path depending upon electric energy applied from the outside; and a membrane formed to jet ink provided to an ink supply hole by establishing ratio of at least 2 to 1 of one side to the other side of the membrane so as to have the ratio of the surface area of the membrane to that of the heating unit by an amount equal to at least 2:1.

REFERENCES:
patent: 4480259 (1984-10-01), Kruger et al.
patent: 5652609 (1997-07-01), Scholler et al.

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