Composite ink jet printhead and relative manufacturing process

Details Composite ink jet printhead and relative manufacturing process Composite ink jet printhead and relative manufacturing process

2007-01-09

2007-01-09

Nguyen, Lamson (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S040000, C347S043000, C216S027000, C216S033000, C029S890100

Reexamination Certificate

active

10504870

ABSTRACT:
The composite printhead (1) is made up of an active module (7), consisting of a thin plate (8) of silicon, on which a plurality of chambers (14) is produced, housing corresponding heating resistors (10), electrically connected through an interconnection network to corresponding external contact pads (37, 42), and of a support element (3) for the active module, in turn consisting of a portion of plate (22) of a rigid, insulating material, provided with an elongated slot shape, ink feeding duct (5), traversing the thickness of the support element (3). The active module (7) is built separately from the support element (3) and later mounted integrally upon the support element (3). Also mounted later to the support (3) is a frame (16) surrounding the active module (7) to provide hydraulic sealing. Finally the module (7) and the frame (16) are covered with a metallic or resin lamina (17), bearing an array of nozzles (18) aligned with and facing the ejection chambers (14).

REFERENCES:
patent: 5565900 (1996-10-01), Cowger et al.
patent: 5818482 (1998-10-01), Ohta et al.
patent: 5900894 (1999-05-01), Masahiko et al.
patent: 0 659 573 (1995-06-01), None
patent: 0 666 174 (1995-08-01), None
patent: 0970812 (2000-12-01), None

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