US 11,993,086 B2Granted

Ink tank and inkjet printer

AssigneeBrother Kogyo Kabushiki Kaisha

InventorsYoshinori Osakabe, Taichi Shirono

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Abstract

An ink tank having an ink tank body, a first electrode member, and a second electrode member, is provided. The ink tank body includes an ink inlet, an ink reservoir chamber, an ink supplying section, a first restrictive side wall, a second restrictive side wall, a leaked-ink flow path, a first surface, a second surface, a connecting surface connecting the first surface and the second surface, and a restrictive section. The leaked-ink flow path is formed at least of a part of the first surface, a part of the connecting surface, a part of the second surface, the first restrictive side wall, and the second restrictive side wall. The restrictive section is arranged on the second surface between the first restrictive side wall and the second restrictive side wall. At least a part of the restrictive section is located between the connecting surface and the first electrode member.

Claims20

Dependent claims

An ink tank usable in an inkjet printer having a recorder, the ink tank comprising:

an ink tank body, comprising:
an ink inlet for ink to be poured there-through;
an ink reservoir chamber continuous with the ink inlet, the ink reservoir chamber being configured store the ink poured thereinto through the ink inlet;
an ink supplying section continuous with the ink reservoir chamber, the ink supplying section being arranged on a first surface of the ink tank body, the ink supplying section being configured to supply the ink in the ink reservoir chamber to the recorder;
a first restrictive side wall extending from the first surface along a connecting surface of the ink tank body to a second surface of the ink tank body;
a second restrictive side wall extending from the first surface along the connecting surface to the second surface;
and
a leaked-ink flow path configured to guide the ink leaked out of the ink inlet and the ink supplying section to a predetermined position, the leaked-ink flow path being formed at least of:
a part of the first surface, a part of the connecting surface, and a part of the second surface that are located between the first restrictive side wall and the second restrictive side wall;
the first restrictive side wall;
and
the second restrictive side wall;
a first electrode member arranged on the second surface, the first electrode member extending from an outside of the ink tank body into an inside of the ink reservoir chamber, the first electrode member being located in the leaked-ink flow path;
and
a second electrode member arranged on the second surface, the second electrode member extending from the outside of the ink tank body into the inside of the ink reservoir chamber, the second electrode member being located outside the leaked-ink flow path apart from the first electrode member,
wherein the ink tank body further comprises a restrictive section arranged on the second surface, the restrictive section being located between the first restrictive side wall and the second restrictive side wall, at least a part of the restrictive section being located between the connecting surface and the first electrode member.

13 more elements

An inkjet printer, comprising:

a recorder configured to record an image in ink;
and
an ink tank, comprising:
an ink tank body, comprising:
an ink inlet for the ink to be poured there-through;
an ink reservoir chamber continuous with the ink inlet, the ink reservoir chamber being configured store the ink poured thereinto through the ink inlet;
an ink supplying section continuous with the ink reservoir chamber, the ink supplying section being arranged on a first surface of the ink tank body, the ink supplying section being configured to supply the ink in the ink reservoir chamber to the recorder;
a first restrictive side wall extending from the first surface along a connecting surface of the ink tank body to a second surface of the ink tank body;
a second restrictive side wall extending from the first surface along the connecting surface to the second surface;
and
a leaked-ink flow path configured to guide the ink leaked out of the ink inlet and the ink supplying section to a predetermined position, the leaked-ink flow path being formed at least of:
a part of the first surface, a part of the connecting surface, and a part of the second surface that are located between the first restrictive side wall and the second restrictive side wall;
the first restrictive side wall;
and
the second restrictive side wall;
a first electrode member arranged on the second surface, the first electrode member extending from an outside of the ink tank body into an inside of the ink reservoir chamber, the first electrode member being located in the leaked-ink flow path;
and
a second electrode member arranged on the second surface, the second electrode member extending from the outside of the ink tank body into the inside of the ink reservoir chamber, the second electrode member being located outside the leaked-ink flow path apart from the first electrode member,
wherein the ink tank body further comprises a restrictive section arranged on the second surface, the restrictive section being located between the first restrictive side wall and the second restrictive side wall, at least a part of the restrictive section being located between the connecting surface and the first electrode member.

16 more elements

An ink tank usable in an inkjet printer having a recorder, the ink tank comprising:

an ink tank body, comprising:
an ink inlet for ink to be poured there-through;
an ink reservoir chamber continuous with the ink inlet, the ink reservoir chamber being configured store the ink poured thereinto through the ink inlet;
an ink supplying section continuous with the ink reservoir chamber, the ink supplying section being arranged on a first surface of the ink tank body, the ink supplying section being configured to supply the ink in the ink reservoir chamber to the recorder;
a first restrictive side wall extending from the first surface along a connecting surface of the ink tank body to a second surface of the ink tank body;
a second restrictive side wall extending from the first surface along the connecting surface to the second surface;
and
a leaked-ink flow path configured to guide the ink leaked out of the ink inlet and the ink supplying section to a predetermined position, the leaked-ink flow path being formed at least of:
a part of the first surface, a part of the connecting surface, and a part of the second surface that are located between the first restrictive side wall and the second restrictive side wall;
the first restrictive side wall;
and
the second restrictive side wall;
a first electrode member arranged on the second surface, the first electrode member extending from an outside of the ink tank body into an inside of the ink reservoir chamber;
and
a second electrode member arranged on the second surface, the second electrode member extending from the outside of the ink tank body into the inside of the ink reservoir chamber;
wherein the first electrode member is separated apart from the second electrode member, and
wherein the first electrode member and the second electrode member are located outside the leaked-ink flow path.

14 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/812,222Filed 13 Jul 2022 · continuation
Priority: CN 202020133436.920 Jan 2020
Published: US 2022/0339942 A127 Oct 2022
Granted: 28 May 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B41J 2/1753
Electrical contacts to the cartridge: details of contacts on the cartridge, e.g. protection of contacts
B41J 29/13
Guards, shields or dust excluders: cases or covers
B41J 2/17509
Refilling of the cartridge: whilst mounted in the printer
B41J 2/17513
Ink cartridges: inner structure

Family

PCT/JP2021/001618Parent of this continuation · filed 19 Jan 2021
US 2022/0339942 A1Pre-grant publication · published 27 Oct 2022
US 11,993,086 B2This patent

From the US filing history. Foreign family members aren’t listed.

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Citations

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