US 2015/0309470 A1Published application

Cartridges including detection member and cover member

AssigneeBrother Kogyo Kabushiki Kaisha

InventorsNao ITABASHI, Naoya KAMIMURA

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Abstract

Cartridges may include a developing roller, an electrode, a detection member, and a cover member. The developing roller rotates about an axis extending along a first direction. The electrode includes a protrusion that protrudes along the first direction to an end portion. The detection member includes a cover portion, which covers an exposable portion of the protrusion when the detection member is in a first position, and which exposes the exposable portion of the protrusion when the detection member is in a second position. The cover member covers a portion of the detection member and exposes the cover portion when the detection member is in the first position. The cover member extends in the first direction to an end portion. An overlap portion of the protrusion extends at least to the end portion of the cover member and overlaps a portion of the cover member in a second direction.

Claims1

Dependent claims

A cartridge comprising:

a developing roller configured to rotate about a first axis extending along a first direction;
an electrode configured to electrically connect to the developing roller, the electrode comprising:
a main body;
and
a protrusion protruding along the first direction from the main body to an end portion of the protrusion;
a detection member that is rotatably supported on the protrusion, the detection member comprising a cover portion configured to cover an exposable portion of the protrusion when the detection member is in a first rotational position and to expose the exposable portion of the protrusion when the detection member is in a second rotational position;
and
a cover member configured to cover a portion of the detection member, the cover member forming an opening therein that is configured to expose the cover portion of the detection member when the detection member is in the first rotational position, and the cover member extending along the first direction to an end portion of the cover member,
wherein an overlap portion of the end portion of the protrusion extends at least to the end portion of the cover member, such that the overlap portion overlaps a portion of the end portion of the cover member in a second direction that is perpendicular to the first direction.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/703,804Filed 4 May 2015
Priority: JP 2012-20891021 Sep 2012
Published: 29 Oct 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

G03G 21/1652
For connecting the different parts of the apparatus: electrical connection means
G03G 15/0863
Arrangements for preparing, mixing, supplying or dispensing developer: provided with identifying means or means for storing process- or use…
G03G 15/0896
Using a solid developer, e.g. powder developer: arrangements or disposition of the complete developer unit or parts thereof not provided for by…
G03G 21/1604
Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements: arrangement or disposition of the entire apparatus

Family

Application14/032,259Continuation · filed 20 Sep 2013
Application14/703,804Continuation
US 2014/0086613 A1Published application
US 9,046,869 B2Related patent
US 9,471,029 B2Related patent
US 2015/0309470 A1This patent

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