JP2013231876A5 - - Google Patents
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- JP2013231876A5 JP2013231876A5 JP2012104187A JP2012104187A JP2013231876A5 JP 2013231876 A5 JP2013231876 A5 JP 2013231876A5 JP 2012104187 A JP2012104187 A JP 2012104187A JP 2012104187 A JP2012104187 A JP 2012104187A JP 2013231876 A5 JP2013231876 A5 JP 2013231876A5
- Authority
- JP
- Japan
- Prior art keywords
- holding member
- developer
- outer peripheral
- peripheral surface
- magnetic force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000002093 peripheral Effects 0.000 claims description 7
Description
請求項３の発明は、外周面に潜像を保持するとともに周方向に回転する像保持部材と、請求項１又は請求項２に記載の現像剤保持部材と、前記現像剤保持部材の前記筒体の内部に設けられた磁力発生部と、を有し、前記筒体の外周面に前記磁力発生部の磁力によって現像剤が保持され、周方向に回転して前記像保持部材の潜像を前記現像剤で現像する現像ロールと、を備える。 According to a third aspect of the present invention, there is provided an image holding member that holds a latent image on an outer peripheral surface and rotates in the circumferential direction, the developer holding member according to claim 1 or 2, and the cylinder of the developer holding member. A developer that is held on the outer peripheral surface of the cylindrical body by the magnetic force of the magnetic force generator, and rotates in the circumferential direction to form a latent image on the image holding member. A developing roll for developing with the developer.
Claims (3)
前記筒体の外周面に軸方向に延びると共に、前記外周面における楕円の短軸側から長軸側に向かって浅くなるように周方向に間隔をあけて形成された複数の凹溝と、
を備える現像剤保持部材。 A cross section viewed from the axial direction is an elliptical cylindrical shape, and a cylindrical body in which a magnetic force generation unit is provided,
A plurality of grooves formed in the outer peripheral surface of the cylindrical body in the axial direction and spaced apart in the circumferential direction so as to become shallower from the short axis side to the long axis side of the ellipse on the outer peripheral surface;
A developer holding member.
請求項１又は請求項２に記載の現像剤保持部材と、前記現像剤保持部材の前記筒体の内部に設けられた磁力発生部と、を有し、前記筒体の外周面に前記磁力発生部の磁力によって現像剤が保持され、周方向に回転して前記像保持部材の潜像を前記現像剤で現像する現像ロールと、
を備える画像形成装置。 An image holding member that holds the latent image on the outer peripheral surface and rotates in the circumferential direction;
3. A developer holding member according to claim 1, and a magnetic force generation portion provided inside the cylindrical body of the developer holding member, wherein the magnetic force is generated on an outer peripheral surface of the cylindrical body. A developer roll that holds the developer by the magnetic force of the portion , rotates in the circumferential direction, and develops the latent image of the image holding member with the developer;
An image forming apparatus comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012104187A JP5906927B2 (en) | 2012-04-27 | 2012-04-27 | Developer holding member and image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012104187A JP5906927B2 (en) | 2012-04-27 | 2012-04-27 | Developer holding member and image forming apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2013231876A JP2013231876A (en) | 2013-11-14 |
| JP2013231876A5 true JP2013231876A5 (en) | 2015-07-02 |
| JP5906927B2 JP5906927B2 (en) | 2016-04-20 |
Family
ID=49678352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012104187A Active JP5906927B2 (en) | 2012-04-27 | 2012-04-27 | Developer holding member and image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5906927B2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08194380A (en) * | 1995-01-19 | 1996-07-30 | Hitachi Ltd | Developing device |
| JP2003295599A (en) * | 2002-02-04 | 2003-10-15 | Ricoh Co Ltd | Developer carrier, developing device, image forming apparatus and process cartridge |
| JP2005024682A (en) * | 2003-06-30 | 2005-01-27 | Ricoh Co Ltd | Image forming apparatus |
| JP5028981B2 (en) * | 2006-12-01 | 2012-09-19 | 富士ゼロックス株式会社 | Developing device and image forming apparatus using the same |
| JP5716531B2 (en) * | 2011-05-18 | 2015-05-13 | 株式会社リコー | Developing roller, developing device, process cartridge, and image forming apparatus |
-
2012
- 2012-04-27 JP JP2012104187A patent/JP5906927B2/en active Active
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