Nozzle cleaning device for an ink jet printer

Details Nozzle cleaning device for an ink jet printer Nozzle cleaning device for an ink jet printer

2007-08-28

2007-08-28

Hsieh, Shih-Wen (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

11033114

ABSTRACT:
A nozzle cleaning device for an ink jet printer containing a plurality of ink reservoirs, the cleaning device including a pressure source and a valve mechanism for selectively coupling the pressure source to the ink reservoirs, wherein the valve mechanism comprises a valve housing, and a piston movable within the valve housing and defining therewith a first pressure chamber and a second pressure chamber, said first and second pressure chamber being connected to the pressure source such that during idle conditions, the pressure source is in communication with the ink reservoirs through said first pressure chamber, and during cleaning conditions and through the movement of the piston, the pressure source is in selective communication with individual ink reservoirs through said second pressure chamber.

REFERENCES:
patent: 4558326 (1985-12-01), Kimura et al.
patent: 4870431 (1989-09-01), Sousa et al.
patent: 5659347 (1997-08-01), Taylor
patent: 6095633 (2000-08-01), Harshbarger et al.
patent: 0 578 334 (1994-01-01), None
patent: 0 615 846 (1994-09-01), None
patent: WO-03/053700 (2003-07-01), None

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