Ink jet head having electrode and non-electrode areas

Details Ink jet head having electrode and non-electrode areas Ink jet head having electrode and non-electrode areas

1997-04-07

2000-09-05

Barlow, John

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 69, B41J 2045

Patent

active

061132276

ABSTRACT:
An ink Jet head includes first base second base which are made of a piezoelectric material. The first and second bases are formed with a plurality of first and second grooves in their surfaces, respectively, and are formed with first and second electrodes on their surfaces between the first grooves, respectively. The first and second bases also includes side surfaces intersecting the surfaces of the first and second bases, respectively. The electrodes are spaced apart from the side surfaces. The second base is placed on the first base so that the grooves in the first base and the grooves in the second base communicate with each other to define ink pressure chambers. An insulating layer is formed on the inner walls of the ink pressure chambers. An orifice plate having orifices is bonded to the side surfaces so that the ink chambers communicate with atmosphere through the orifices.

REFERENCES:
patent: 5227813 (1993-07-01), Pies et al.
patent: 5235352 (1993-08-01), Pies et al.
patent: 5844587 (1998-12-01), Ando et al.
J.J. Vormen "Crystal-Plates Without Overtones" Procedings of the I.R.E. vol. 39, No. 9, pp. 1086-1087, Sep. 1951.
"Laser Ablation of Polymer Thin Films", IBM Technical Disclosure Bulletin, vol. 38, No. 1, Jan., 1995, p. 25.

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