Image forming apparatus and process unit that form images by using photosensitive bodies and developing units

US8948652B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8948652-B2
Application numberUS-201213426756-A
CountryUS
Kind codeB2
Filing dateMar 22, 2012
Priority dateMay 30, 2011
Publication dateFeb 3, 2015
Grant dateFeb 3, 2015

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  2. Abstract

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Abstract

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In an image forming apparatus, photosensitive bodies are mounted in a first frame. Developing units are detachably mounted in the first frame. A second frame is movable relative to the first frame. Each developing unit is movable relative to the first frame between a separate position, at which a developing roller is separate from a photosensitive body, and a contact position, at which the developing roller is in contact with the photosensitive body. The second frame moves relative to the first frame, thereby moving the developing units relative to the first frame between the separate positions and the contact positions. The second frame positions each developing unit relative to the first frame in a direction to move the developing roller toward the corresponding photosensitive body when the developing unit is in the contact position.

First claim

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What is claimed is: 1. An image forming apparatus, comprising: a first frame, a plurality of photosensitive bodies being mounted in the first frame such that the photosensitive bodies are juxtaposed with one another, a plurality of developing units being detachably mountable in the first frame in correspondence with the photosensitive bodies; and a second frame that is movable relative to the first frame, wherein each developing unit of the developing units includes a respecti…

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What does patent US8948652B2 cover?
In an image forming apparatus, photosensitive bodies are mounted in a first frame. Developing units are detachably mounted in the first frame. A second frame is movable relative to the first frame. Each developing unit is movable relative to the first frame between a separate position, at which a developing roller is separate from a photosensitive body, and a contact position, at which the deve…
Who is the assignee on this patent?
Abe Koji, Brother Ind Ltd
What technology area does this patent fall under?
Primary CPC classification G03G15/0194. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Feb 03 2015 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).