US 2019/0337312 A1Published application

Liquid ejection head

AssigneeBrother Kogyo Kabushiki Kaisha

InventorsKeita SUGIURA, Masayuki TAKATA, Hideki HAYASHI

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Abstract

A liquid ejection head includes: a first head unit; a second head unit disposed adjacent to the first head unit in a first direction and located on a first side of the first head unit in a second direction; and a heat uniforming unit shared by the first head unit and the second head unit. Each of the first head unit and the second head unit includes: a unit body including an actuator; and a first driver integrated circuit disposed on the first side of the unit body in the second direction. The heat uniforming unit includes a first heat uniforming member disposed on the first side of the first head unit and the second head unit in the second direction. The first heat uniforming member includes a first protrusion located next to the second head unit in the first direction and protruding toward the first head unit.

Claims6

Dependent claims

A liquid ejection head, comprising:

a first head unit;
a second head unit disposed adjacent to the first head unit in a first direction, the second head unit located on a first side of the first head unit in a second direction orthogonal to the first direction;
and
a metal cover,
the first head unit and the second head unit each comprising:
a unit body comprising an actuator configured to cause ejection of liquid from a plurality of nozzles;
and
a first driver disposed on the first side of the unit body in the second direction, the first driver being configured to drive the actuator,
the metal cover comprising:
a first metal member disposed on the first side of the first head unit and the second head unit in the second direction;
and
an intermediate metal member disposed on the first side of the first head unit in the second direction and disposed on a second side of the second head unit in the second direction, the first side and the second side being opposite sides in the second direction,
the first metal member and the intermediate metal member being formed integrally with each other.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/514,251Filed 17 Jul 2019
Priority: JP 2016-14722627 Jul 2016
Published: 7 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B41J 29/377
Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for: cooling or ventilating arrangements
B41J 2/1408
Structure of bubble jet print heads: structure dealing with thermal variations, e.g. cooling device, thermal coefficients of materials
B41J 2/14201
Structure thereof only for on-demand ink jet heads: structure of print heads with piezoelectric elements
B41J 2/155
Arrangement thereof: for line printing

Family

Application15/468,524Continuation · filed 24 Mar 2017
Application15/886,951Continuation · filed 2 Feb 2018
Application16/196,501Continuation · filed 20 Nov 2018
Application16/514,251Continuation
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From the US filing history. Foreign family members aren’t listed.