Ink jet printer head and a method of driving the same

Details Ink jet printer head and a method of driving the same Ink jet printer head and a method of driving the same

1994-08-26

1997-01-14

Reinhart, Mark J.

Incremental printing of symbolic information

Ink jet

Controller

347 12, 347 40, 347 69, B41J 2045

Patent

active

055944752

ABSTRACT:
An ink jet print head includes pressure chambers divided by side walls formed at least partially of a piezoelectric member, voltage is applied to electrodes formed on surface of side walls, and jets ink in the pressure chambers through ink jets by causing deformation of shearing strain mode to the side walls. Each one of the side walls disposed on both sides of the pressure chambers has different operating characteristics. The volume of the ink to be jetted can be changed in three ways by selectively deforming either of the side walls of the pressure chamber from which the ink is to be jetted or by deforming both of the side walls of the pressure chamber simultaneously. Accordingly, gradation can be acquired by a simply constructed print head.

REFERENCES:
patent: 4639735 (1987-01-01), Yamamoto et al.
patent: 5193256 (1993-03-01), Ochiai et al.
patent: 5248998 (1993-09-01), Ochiai
patent: 5266965 (1993-11-01), Komai et al.
patent: 5301404 (1994-04-01), Ochiai
patent: 5311218 (1994-05-01), Ochiai
patent: 5311219 (1994-05-01), Ochiai
patent: 5327627 (1994-07-01), Ochiai
patent: 5351375 (1994-10-01), Ochiai

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