Drum unit for supporting developer cartridge that includes developing roller

US9304437B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9304437-B2
Application numberUS-201514803335-A
CountryUS
Kind codeB2
Filing dateJul 20, 2015
Priority dateDec 26, 2008
Publication dateApr 5, 2016
Grant dateApr 5, 2016

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

An image forming apparatus includes an apparatus body, a drum unit which holds photosensitive drums in parallel, a developing cartridge which is detachably mounted in the drum unit, a translation member which is provided in the apparatus body to be movable linearly, a shaft which is provided on the tandem photosensitive drum unit for each developing cartridge; and a pivoting member which is rotatably supported by the shaft. The pivoting member includes an abutting portion which is provided on one side to abut the translation member, a pressing portion which is provided on the other side, and is configured to press a predetermined portion of the developing cartridge in a direction in which the developing roller is separated from the photosensitive drum; and a spring portion which applies a biasing force in a direction in which the pressing portion is separated from the predetermined portion.

First claim

Opening claim text (preview).

The invention claimed is: 1. A drum unit configured to support a plurality of developing cartridges, each including a developing roller, the drum unit comprising: a plurality of photosensitive drums; a support portion supporting the plurality of photosensitive drums; and a plurality of contacting and spacing members provided to the support portion, each of the contacting and spacing members being configured to take a contacting position for contacting the developing roller of…

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What does patent US9304437B2 cover?
An image forming apparatus includes an apparatus body, a drum unit which holds photosensitive drums in parallel, a developing cartridge which is detachably mounted in the drum unit, a translation member which is provided in the apparatus body to be movable linearly, a shaft which is provided on the tandem photosensitive drum unit for each developing cartridge; and a pivoting member which is rot…
Who is the assignee on this patent?
Brother Ind Ltd
What technology area does this patent fall under?
Primary CPC classification G03G15/0865. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Apr 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).