Two actuator shear mode type ink jet print head with dimensional

Details Two actuator shear mode type ink jet print head with dimensional Two actuator shear mode type ink jet print head with dimensional

1996-03-25

1999-12-07

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 69, 310358, B41J 2045

Patent

active

059971355

ABSTRACT:
An ink jet print head is constructed from first and second actuator plates 102 and 103. Side walls 111 and 116 made from piezoelectric material are connected to each other. An ink chambers 112 filled with ink 181 is formed between two adjacent side walls each constructed from the side walls 111 and 116. The actuator plates 102 and 103 can be produced so that the length of the side walls 111 be different from the length of the side walls 116 so long as the ratio between those values does not exceed an upper limit of 3 or a lower limit of 1/3. The actuator plates 102 and 103 can be produced so that the width of the side walls 111 be different from the width of the side walls 116 so long as the ratio between those values does not exceed an upper limit of 2 or a lower limit of 1/2. The actuator plates 102 and 103 can be bonded to each other with the side walls 111 and 116 are shifted from each other so long as a ratio of the shift amount in regards to the width of the ink chambers does not exceed an upper limit of 0.5. A ratio of the ink chamber width to the side wall width is preferably in the range of 1/3 and 3.

REFERENCES:
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patent: 5159349 (1992-10-01), Endo et al.
patent: 5432540 (1995-07-01), Hiraishi
patent: 5443809 (1995-08-01), Pies et al.
Patent Abstract of Japan, Maeno Fumio, "Liquid Droplet Jet Recording Apparatus", vol. 017, No. 53, Feb. 3, 1993.

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