Development apparatus and cartridge with sealing member to prevent leakage of developer
US-9213266-B2 · Dec 15, 2015 · US
Developing unit
US9348258B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9348258-B2 |
| Application number | US-201414491209-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 19, 2014 |
| Priority date | Sep 20, 2013 |
| Publication date | May 24, 2016 |
| Grant date | May 24, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A developing unit includes a housing, a developing roller and a seal contacting an outer peripheral surface of the developing roller. The seal includes a first part disposed inward in an axial line direction of the developing roller and contacting the outer peripheral surface of the developing roller, and a second part contacting an outer edge of the first part in the axial line direction and disposed outward from the first part in the axial line direction and contacting the outer peripheral surface. The first part has a contact surface contacting the developing roller and a plurality of first grooves each of which is recessed from the contact surface and extends along the contact surface. The plurality of first grooves extends from outward to inward in the axial line direction, as the plurality of first grooves extends from upstream to downstream in a rotational direction of the developing roller.
First claim
Opening claim text (preview).
What is claimed is: 1. A developing unit comprising: a housing configured to accommodate therein a developing agent; a developing roller disposed in the housing and configured to rotate on a first axial line; and a seal disposed in the housing and contacting an outer peripheral surface of the developing roller, wherein the seal comprises: a first part disposed inward in an axial line direction of the developing roller and contacting the outer peripheral surface of the devel…
Assignees
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Classifications
Physics · mapped topic
Physics · mapped topic
- G03G15/0817Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9348258B2 cover?
- A developing unit includes a housing, a developing roller and a seal contacting an outer peripheral surface of the developing roller. The seal includes a first part disposed inward in an axial line direction of the developing roller and contacting the outer peripheral surface of the developing roller, and a second part contacting an outer edge of the first part in the axial line direction and d…
- Who is the assignee on this patent?
- Brother Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification G03G15/0817. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue May 24 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).