Liquid-jetting head
AssigneeCanon Kabushiki Kaisha
InventorsHiroshi Sugitani, Hiroto Matsuda, Masami Ikeda
Life of this patent
Estimating the term…
Abstract
A liquid-jetting head comprising a plurality of liquid-jetting-pressure-generating elements and a plurality of liquid-jetting orifices opposite to said elements through a liquid passage is characterized in that said passage is divided into at least two groups, and the adjacent elements of said elements are separately communicated with isolated respective liquid passages.
Claims16
A recording head, for liquid jet recording apparatus, comprising a generally flat orifice plate with an array of orifices spaced apart in the plane of said orifice plate for the ejection of liquid and a base member on which said orifice plate is mounted;
- wherein:
- said base member includes a plurality of chambers for receiving recording liquid supplied to the head, each said chamber being associated exclusively with a set of said orifices;
- each said chamber has a number of separate branch paths associated therewith for receiving recording liquid directly from said chamber and conveying it to said set of orifices associated therewith in a direction generally parallel to the plane of said orifice plate;
- each said branch path includes a pressure-generating transducer arranged for applying pressure impulses to liquid in said branch path to eject recording liquid from a corresponding orifice in a direction transverse to the direction of liquid conveyance thereto;
- and
- a wall of at least one of said chambers and said branch paths associated therewith is provided by a surface of said orifice plate.
Image recording apparatus comprising a recording head, means for supplying recording liquid to said recording head and means for controlling deposition of recording liquid by said recording head on a recording medium, said recording head including a generally flat orifice plate with an array of orifices spaced apart in the plane of said orifice plate for the ejection of liquid and a base member on which said orifice plate is mounted;
- wherein:
- said base member includes a plurality of chambers for receiving recording liquid supplied to the head, each said chamber being associated exclusively with a set of said orifices;
- each said chamber has a number of separate branch paths associated therewith for receiving recording liquid directly from said chamber and conveying it to said set of orifices associated therewith in a direction generally parallel to the plane of said orifice plate;
- each said branch path includes a pressure-generating transducer arranged for applying pressure impulses to liquid in said branch path to eject recording liquid from a corresponding orifice in a direction transverse to the direction of liquid conveyance thereto;
- and
- a wall of at least one of said chambers and said branch paths associated therewith is provided by a surface of said orifice plate.
Dependencies are inferred from the claim text.