Ink jet print head having ceramic ink pump member whose thin ori

Details Ink jet print head having ceramic ink pump member whose thin ori Ink jet print head having ceramic ink pump member whose thin ori

1996-03-01

1998-11-03

Malley, Daniel P.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 71, B32B 3126

Patent

active

058316515

ABSTRACT:
An ink jet print head including a ceramic ink pump member and a metallic nozzle member bonded to the pump member through a channel plate, wherein the pump member has a diaphragm plate with a piezoelectric and/or electrostrictive element, a spacer plate having a window, and a laminar structure of an orifice plate and a reinforcing plate which structure cooperates with the diaphragm and spacer plates to define an ink chamber communicating with an ink supply channel formed in the channel plate through an ink inlet hole formed in the reinforcing plate and a minute hole formed in the orifice plate, and further communicating with a nozzle formed in the nozzle member through communication holes formed in the orifice and reinforcing plates, and wherein the channel plate and the nozzle member are bonded to the laminar structure of the pump member.

REFERENCES:
patent: 4680595 (1987-07-01), Cruz-Uribe et al.
patent: 4695854 (1987-09-01), Cruz-Uribe
patent: 4730197 (1988-03-01), Reimon et al.
patent: 5376856 (1994-12-01), Takeuchi et al.
patent: 5475279 (1995-12-01), Takeuchi et al.
patent: 5512793 (1996-04-01), Takeuchi et al.
patent: 5617127 (1997-04-01), Takeuchi et al.
patent: 5643379 (1997-07-01), Takeuchi et al.

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