Ink jet head orifice plate mounting arrangement
First Claim
Patent Images
1. A method of manufacturing an ink jet head, comprising the steps of:
- providing a passage-forming member having a plurality of ink passages, an orifice plate having an array of ejection outlets in liquid communication with respective said ink passages, wherein said orifice plate has a plurality of edge portions and said ejection outlets are arranged along a line that runs parallel to at least one of said edge portions and intersects opposing said edge portions at crossing points, and a confining member for holding said orifice plate against said passage-forming member; and
holding said orifice plate against said passage-forming member with said confining member only along one confined edge portion parallel to and proximate to said line and at corner portions of said orifice plate, each said corner portion extending along an edge portion from an extremity of said confined edge portion approximately to one of said crossing points.
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Abstract
An ink jet head includes a passage-forming member providing a plurality of ink passages and an orifice plate having an array of ejection outlets in communication with respective ink passages. The orifice plate has a plurality of edge portions and the ejection outlets are arranged along a line that runs parallel to at least one of the edge portions and intersects opposing edge portions at crossing points. A confining member is configured to hold the orifice plate against the passage-forming member only in areas proximate to the crossing points.
25 Citations
6 Claims
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1. A method of manufacturing an ink jet head, comprising the steps of:
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providing a passage-forming member having a plurality of ink passages, an orifice plate having an array of ejection outlets in liquid communication with respective said ink passages, wherein said orifice plate has a plurality of edge portions and said ejection outlets are arranged along a line that runs parallel to at least one of said edge portions and intersects opposing said edge portions at crossing points, and a confining member for holding said orifice plate against said passage-forming member; and holding said orifice plate against said passage-forming member with said confining member only along one confined edge portion parallel to and proximate to said line and at corner portions of said orifice plate, each said corner portion extending along an edge portion from an extremity of said confined edge portion approximately to one of said crossing points. - View Dependent Claims (2)
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3. An ink jet head comprising:
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a passage-forming member providing a plurality of ink passages; an orifice plate having an array of ejection outlets in communication with respective said ink passages, wherein said orifice plate has a plurality of edge portions and said ejection outlets are arranged along a line that runs parallel to at least one of said edge portions and intersects opposing said edge portions at crossing points; and a confining member for holding said orifice plate against said passage-forming member only along one confined edge portion parallel to and proximate to said line and at corner portions of said orifice plate, each said corner portion extending along an edge portion from an extremity of said confined edge portion approximately to one of said crossing points. - View Dependent Claims (4, 5, 6)
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Specification