Ink jet printhead with moveable shutters

Details Ink jet printhead with moveable shutters Ink jet printhead with moveable shutters

2005-09-20

2005-09-20

Meier, Stephen D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S048000

Reexamination Certificate

active

06945630

ABSTRACT:
An ink jet printhead chip that is the product of an integrated circuit fabrication technique includes a wafer substrate having a front surface and a rear surface. A plurality of ink passages are defined through the wafer substrate, so that each ink passage defines an inlet at a rear surface of the wafer substrate and an outlet at a front surface of the wafer substrate. Each ink passage is in fluid communication with an ink supply at the rear surface of the wafer substrate. A plurality of actuators are positioned on the rear surface of the wafer substrate and are operatively arranged with respect to the ink passages to generate an ink flow through each passage, from the rear surface to the front surface, when activated.

REFERENCES:
patent: 5812159 (1998-09-01), Anagnostopoulos et al.
patent: 5828394 (1998-10-01), Khuri-Yakub et al.
patent: 6174050 (2001-01-01), Kashino et al.
patent: 6488359 (2002-12-01), Silverbrook
patent: 416540 (1991-03-01), None

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