Image forming apparatus and process cartridge
US-2024427260-A1 · Dec 26, 2024 · US
Charging member and image forming apparatus
US9057973B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9057973-B2 |
| Application number | US-201113314694-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 8, 2011 |
| Priority date | Dec 14, 2010 |
| Publication date | Jun 16, 2015 |
| Grant date | Jun 16, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A charging blade for charging a surface of an image bearing drum by contacting thereto includes a charging portion for effecting electric discharge to the surface of the drum; a non-charging portion not effecting the electric discharge to the surface of the drum, wherein the non-charging portion can contact the drum to provide a dischargeable gap between the charge portion and the drum, and at least a part the non-charging portion is made of a substance having a resistance higher than that of the charge portion to prevent no discharge occurs from the non-charging portion to the surface of the drum; and a support for the non-charging portion and the charge portion, wherein the non-charging portion and the charge portion are separation members and are not contacted to each other.
First claim
Opening claim text (preview).
What is claimed is: 1. A blade-like charging member for charging a surface of an image bearing member by contacting thereto and by being supplied with a voltage, said charging member comprising: a charging portion for effecting electric discharge to the surface of the image bearing member; a non-charging portion not effecting the electric discharge to the surface of the image bearing member, wherein said non-charging portion is provided at a free end portion of said blade-like c…
Assignees
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Classifications
- G03G15/0233Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9057973B2 cover?
- A charging blade for charging a surface of an image bearing drum by contacting thereto includes a charging portion for effecting electric discharge to the surface of the drum; a non-charging portion not effecting the electric discharge to the surface of the drum, wherein the non-charging portion can contact the drum to provide a dischargeable gap between the charge portion and the drum, and at …
- Who is the assignee on this patent?
- Oshima Nobuo, Namiki Takayuki, Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification G03G15/0233. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jun 16 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).