Back to results
US 7,922,284 B2Granted
Liquid-droplet jetting head and liquid-droplet jetting apparatus having the same
AssigneeBrother Kogyo Kabushiki Kaisha
InventorHiroto Sugahara
Life of this patent
Estimating the term…
Abstract
An ink-jet head includes a pressure generating block, a nozzle plate having an ink jetting surface, and a manifold block. The manifold block has an inclined surface which inclines toward the ink jetting surface and is continuous to the ink jetting surface at one end thereof.
Claims19
A liquid-droplet jetting head which jets a droplet of a liquid, comprising:
- a first block having a plurality of pressure chambers and a pressure applying mechanism which applies pressure variation to the liquid in the pressure chambers;
- a nozzle plate which is joined to the first block and in which a plurality of nozzles communicating with the pressure chambers respectively are formed;
- and
- a second block which is arranged on a side of the nozzle plate opposite to the first block and in which a manifold is formed, the manifold retaining the liquid to be supplied to each of the pressure chambers;
- wherein the nozzle plate has a plurality of communication holes each of which communicates the manifold and one of the pressure chambers;
- and
- wherein the second block has an inclined surface which is inclined toward a surface of the nozzle plate and is continuous to the surface of the nozzle plate at one end of the inclined surface.
4 more elements
A liquid-droplet jetting apparatus which jets a droplet of a liquid, comprising:
- a liquid-droplet jetting head including:
- a first block having a plurality of pressure chambers and a pressure applying mechanism which applies pressure variation to the liquid in the pressure chambers;
- a nozzle plate which is joined to the first block, and in which a plurality of nozzles communicating with the pressure chambers respectively are formed;
- and
- a second block which is arranged on a side of the nozzle plate opposite to the first block and in which a manifold is formed, the manifold retaining the liquid to be supplied to each of the pressure chambers, and which has an inclined surface inclining toward a surface of the nozzle plate and being continuous to the surface of the nozzle plate at one end of the inclined surface, the nozzle plate having a plurality of communication holes each of which communicates the manifold and one of the pressure chambers;
- a moving section which reciprocates the liquid-droplet jetting head in a predetermined direction;
- a medium-transporting section which transports a jetting-objective medium, on which the liquid droplet jetted from the liquid-droplet jetting head is to be landed, in an orthogonal direction orthogonal to the predetermined direction;
- and
- a wiper which wipes the nozzles;
- wherein the nozzles form a nozzle row arranged in the orthogonal direction;
- and
- wherein the inclined surface is located at least on one side of the nozzle row with respect to the predetermined direction.
9 more elements
Dependencies are inferred from the claim text.