Inkjet print head and inkjet printer

Details Inkjet print head and inkjet printer Inkjet print head and inkjet printer

1993-08-10

1996-07-30

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2045

Patent

active

055416306

ABSTRACT:
An inkjet print head and inkjet printer can stabilize the characteristic of ink discharge and improve the quality of printing by providing a vibrating plate, a part of which is vibrated by deforming a piezoelectric element corresponding to a pressure chamber without transmission of the vibration to any other vibrating plate part corresponding to another pressure chamber. The inkjet print head and inkjet printer can prevent any floating in the grounding electrode. In the inkjet print head and inkjet printer, furthermore, the characteristic of ink droplet discharge can be stabilized by reducing and equalizing the distance between the grounding electrode and each of the piezoelectric element electrode. A head unit is mounted on a base which includes a support for supporting the parts of the vibrating plate corresponding to the respective nozzles. A flexible cable having electrode portions connected to the piezoelectric elements has a grounding electrode located at a position corresponding to a circular area which is defined by the pressure chambers and piezoelectric elements.

REFERENCES:
patent: 4115789 (1978-09-01), Fischbeck
patent: 4521788 (1985-06-01), Kimura et al.
patent: 5126764 (1992-06-01), Miyauchi

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