Ink jet print head which prevents bubbles from collecting

Details Ink jet print head which prevents bubbles from collecting Ink jet print head which prevents bubbles from collecting

2005-03-31

2011-10-04

Vo, Anh T. N. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S065000

Reexamination Certificate

active

08029119

ABSTRACT:
Ink jet print head comprising a substrate with an upper surface and a lower surface; a plurality of actuators with ejection chambers and ink supply passages, an ink distribution slot formed in the substrate between the lower surface and the upper surface; a manifold formed in the substrate of the upper surface around the slot for the feed to the actuators; and a plurality of bubble prevention elements formed in the feed manifold. The plurality of bubble prevention elements is provided only for a marginal set of actuators remote from the distribution slot.

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patent: 1 213 147 (2002-06-01), None
patent: 1 098 771 (2003-04-01), None
patent: WO 00/00354 (2000-01-01), None
International Search Report dated Nov. 16, 2005 issued in PCT/IB2005/000840.

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