Inkjet head
AssigneeBrother Kogyo Kabushiki Kaisha
InventorTadanobu Chikamoto
Life of this patent
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Abstract
An inkjet head includes a flow path unit, an actuator unit, a flat flexile cable, a cover member and plural filters. The actuator unit is joined to an inflow-port face of the flow path unit. The reservoir unit supplies ink in an ink reservoir thereof into the flow path unit through the filters against which a region of the reservoir unit at least partially abuts. A side face of the reservoir unit defines a recess reaching the region of the reservoir unit between adjacent two filters. A sealant is applied to a gap between side faces of the two adjacent filters on the inflow-port face of the flow path unit and applied to the recess.
Claims11
An inkjet head comprising:
- a flow path unit that comprises:
- a plurality of ink inflow ports;
- a common ink chamber to which ink flowing into the ink inflow ports is supplied;
- and
- a plurality of individual ink flow paths each of which extends from an outlet of the common ink chamber to a nozzle through a pressure chamber;
- an actuator unit that applies an ejection energy to the ink in the pressure chambers, the actuator unit joined to an inflow-port face of the flow path unit in which the ink inflow ports are formed;
- a plurality of filters joined to the inflow-port face of the flow path unit, the filters covering the ink inflow ports;
- a reservoir unit formed with an ink reservoir that stores the ink, the reservoir unit comprising a first face, a second face opposite to the first face and a side face connecting the first face and the second face, the second face comprising:
- a first region at least partially facing the actuator unit with a gap therebetween;
- and
- a second region at least partially abutting against the filters, the side face defining:
- a first recess reaching the first region of the second face;
- and
- a second recess reaching the second region of the second face between adjacent two filters,
- the reservoir unit supplying the ink in the ink reservoir into the flow path unit through the filters;
- a flat flexible cable that comprises:
- a fixed portion that is fixed to the actuator unit;
- and
- an extending portion that is withdrawn from the fixed portion and extends in a direction away from the flow path unit;
- a cover member that comprises:
- an end face that abuts against the first face of the reservoir unit;
- and
- an accommodation region that is accommodated in the first recess, the extending portion of the flat flexible cable interposed between the first recess and the accommodation region, and
- a sealant that is applied to a gap between side faces of the two adjacent filters on the inflow-port face of the flow path unit and applied to the second recess.
An inkjet head comprising:
- a flow path unit that comprises:
- an inflow-port face formed with a plurality of ink inflow ports;
- and
- a plurality of nozzles that communicate with the ink flow ports;
- an actuator unit that applies an ejection energy to ink in the flow path unit to eject the ink through the nozzles the actuator unit joined to the inflow-port face of the flow path unit;
- a plurality of filters joined to the inflow-port face of the flow path unit to cover the ink inflow ports;
- and
- a reservoir unit formed with an ink reservoir that stores the ink, the reservoir unit comprising a plurality of ink supply ports, the reservoir unit that supplies the ink to the flow path unit through the ink supply ports, the filters and the ink inflow ports, wherein:
- the ink supply ports of the reservoir unit and the ink inflow ports of the flow path unit sandwich the filters therebetween.
Dependencies are inferred from the claim text.