US 2009/0267997 A1 · INK JET HEAD

Abstract

An ink jet head includes a substrate having an ink supply port; an ejection outlet for ejecting ink supplied through the supply port; a flow path portion which provides fluid communication between the supply port and the ejection outlet; wherein the flow path portion includes a near portion which is near to the substrate and a remote portion which is remote from the substrate, and a width of the near portion is different from a width of the remote portion in a sectional plane perpendicular to a direction of flow of the ink, and wherein a stepped portion is provided between the near portion and the remote portion.

Claims7

Dependent claims

An ink jet head comprising:

a substrate having an ink supply port;
an ejection outlet for ejecting ink supplied through said supply port;
a flow path portion which provides fluid communication between said supply port and said ejection outlet;
wherein said flow path portion includes a near portion which is near to said substrate and a remote portion which is remote from said substrate, and a width of the near portion is different from a width of the remote portion in a sectional plane perpendicular to a direction of flow of the ink, and wherein a stepped portion is provided between the near portion and the remote portion.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

11/908,060Filed 2 May 2007

Priority

JP 2006-1283992 May 2006

Published

29 Oct 2009

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

B41J 2/1404
Structure of the pressure chamber: geometrical characteristics
B41J 2/1603
Production of bubble jet print heads: of the front shooter type
B41J 2/1623
Manufacturing processes: bonding and adhesion
B41J 2/1626
Manufacturing processes: etching

Ink jet head

Life of this patent

Ink jet head

Life of this patent

Abstract

Claims7