IP Library › Granted Patent US 7,032,992
Granted Patent B2
US 7,032,992 · App. 10/992,714 · Granted Apr 25, 2006

Inkjet printer using meniscus rim in nozzle chamber

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Quick Facts
Patent No.
US 7,032,992
App. No.
10/992,714
Granted
Apr 25, 2006
Kind
B2
Abstract

An inkjet printer comprising at least one inkjet printhead printhead having a series of ink ejection nozzles for the ejection of ink, each of said nozzles interconnecting a nozzle chamber with an external atmosphere, each said nozzle having a first meniscus rim around which an ink meniscus normally forms, and an extended ink flow prevention rim spaced outwardly from said first meniscus rim and substantially encircling said first meniscus rim, arranged to prevent the flow of ink across the surface of said inkjet printhead.

Claims (8)

1. An inkjet printer comprising at least one inkjet printhead printhead having a series of ink ejection nozzles for the ejection of ink, each of said nozzles interconnecting a nozzle chamber with an external atmosphere, each said nozzle having a first meniscus rim around which an ink meniscus normally forms, and an extended ink flow prevention rim spaced outwardly from said first meniscus rim and substantially encircling said first meniscus rim, arranged to prevent the flow of ink across the surface of said ink jet printhead.

2. An inkjet printer as claimed in claim 1 wherein said first meniscus rim and said extended ink flow prevention rim are spaced apart by a pit arranged to contain ink.

3. An inkjet printer as claimed in claim 1 wherein said ink flow prevention rim is substantially co-planar with said first meniscus rim.

4. An inkjet printer as claimed in claim 1 wherein said ink flow prevention rim is formed from the same material as said first meniscus rim.

5. An inkjet printer as claimed in claim 1 wherein said ink flow prevention rim and said first meniscus rim are formed utilizing chemical mechanical planarization.

6. An inkjet printer as claimed in claim 1 wherein said ink flow prevention rim and said first meniscus rim are formed from PECVD TEOS.

7. An inkjet printer as claimed in claim 1 wherein said ink flow prevention rim and said first meniscus rim are formed from silicon nitride.

8. An inkjet printer as claimed in claim 1 comprising an array of said printheads.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 13, 2012
From: SILVERBROOK RESEARCH PTY. LIMITED AND CLAMATE PTY LIMITED
To: ZAMTEC LIMITED
Reel/Frame 028543/0087 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 22, 2004
From: SILVERBROOK, KIA
To: SILVERBROOK RESEARCH PTY. LTD.
Reel/Frame 016019/0195 →