JP2009139882A5 - - Google Patents
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- Publication number
- JP2009139882A5 JP2009139882A5 JP2007319137A JP2007319137A JP2009139882A5 JP 2009139882 A5 JP2009139882 A5 JP 2009139882A5 JP 2007319137 A JP2007319137 A JP 2007319137A JP 2007319137 A JP2007319137 A JP 2007319137A JP 2009139882 A5 JP2009139882 A5 JP 2009139882A5
- Authority
- JP
- Japan
- Prior art keywords
- roller
- axial direction
- developing
- groove
- liquid developer
- 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.)
- Granted
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- 239000011248 coating agent Substances 0.000 claims 8
- 238000000576 coating method Methods 0.000 claims 8
- 239000007788 liquid Substances 0.000 claims 8
- 239000000969 carrier Substances 0.000 claims 4
- 230000018109 developmental process Effects 0.000 claims 3
- 230000004323 axial length Effects 0.000 claims 2
- 238000005192 partition Methods 0.000 claims 2
- 230000002093 peripheral Effects 0.000 claims 2
Claims (7)
周面に溝が形成されて、前記現像ローラに液体現像剤を塗布する塗布ローラと、を有し、
前記溝は、前記塗布ローラの軸方向端部の溝深さは、前記軸方向の中央部の溝深さよりも浅く形成されることを特徴とする現像装置。 A developing roller for developing the latent image formed on the image carrier;
A groove formed on the peripheral surface, and an application roller for applying a liquid developer to the development roller,
The developing device is characterized in that the groove is formed such that the groove depth at the axial end of the application roller is shallower than the groove depth at the central part in the axial direction.
前記現像剤容器は、液体現像剤を貯留する供給貯留部、該供給貯留部の前記塗布ローラの軸方向の中央部で鉛直方向の下方に設けられ液体現像剤を前記供給貯留部に供給する液体現像剤供給口と、及び前記液体現像剤供給口から供給される液体現像剤を前記塗布ローラの軸方向の中央部から端部側に搬送するオーガを備える請求項１または請求項２に記載の現像装置。 A developer container below the vertical direction of the application roller;
The developer container is a supply storage section that stores a liquid developer, and a liquid that is provided below the vertical direction at a central portion of the supply storage section in the axial direction of the application roller and supplies the liquid developer to the supply storage section. 3. The developer supply port according to claim 1, further comprising an auger configured to convey the liquid developer supplied from the developer supply port and the liquid developer supply port from an axially central portion to an end side of the coating roller. Development device.
前記供給貯留部と前記回収貯留部とを隔てる仕切り部と、を有し、
前記仕切り部の前記塗布ローラの軸方向の端部の鉛直方向の高さは前記塗布ローラの軸方向の中央部の鉛直方向の高さより低い請求項３に記載の現像装置。 A collection reservoir provided in the developer container;
A partition that separates the supply reservoir from the collection reservoir;
The developing device according to claim 3, wherein a vertical height of an end portion of the partition roller in the axial direction of the coating roller is lower than a vertical height of a central portion of the coating roller in the axial direction.
前記規制ブレードの前記塗布ローラの軸方向の長さは前記塗布ローラの軸方向の長さより長い請求項１乃至請求項４のいずれか１項に記載の現像装置。 A regulation blade that abuts the application roller and regulates the amount of liquid developer applied to the development roller;
The developing device according to claim 1, wherein a length of the regulation blade in the axial direction of the coating roller is longer than a length of the coating roller in the axial direction.
前記像担持体に形成された前記潜像を現像する現像ローラ、及び周面に溝が形成されて前記現像ローラに液体現像剤を塗布する塗布ローラを有する現像部と、
前記現像ローラにより前記像担持体で現像された像を記録媒体に転写する転写部と、を有し、
前記溝は、前記塗布ローラの軸方向端部の溝深さは、前記軸方向の中央部の溝深さよりも浅く形成されることを特徴とする画像形成装置。 An image carrier on which a latent image is formed;
A developing unit that develops the latent image formed on the image bearing member, and a developing unit that includes a coating roller that has a groove formed on a peripheral surface thereof and applies a liquid developer to the developing roller;
A transfer unit that transfers an image developed on the image carrier by the developing roller to a recording medium,
2. The image forming apparatus according to claim 1, wherein the groove is formed such that a groove depth at an axial end portion of the application roller is shallower than a groove depth at a central portion in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007319137A JP5013098B2 (en) | 2007-12-11 | 2007-12-11 | Development device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007319137A JP5013098B2 (en) | 2007-12-11 | 2007-12-11 | Development device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2009139882A JP2009139882A (en) | 2009-06-25 |
| JP2009139882A5 true JP2009139882A5 (en) | 2011-01-13 |
| JP5013098B2 JP5013098B2 (en) | 2012-08-29 |
Family
ID=40870505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007319137A Expired - Fee Related JP5013098B2 (en) | 2007-12-11 | 2007-12-11 | Development device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5013098B2 (en) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0850405A (en) * | 1994-08-08 | 1996-02-20 | Mita Ind Co Ltd | Developer stirring/carrying device |
| JP2002174954A (en) * | 2000-12-07 | 2002-06-21 | Niigata Fuji Xerox Manufacturing Co Ltd | Image forming device |
| JP2002258620A (en) * | 2001-02-28 | 2002-09-11 | Ricoh Co Ltd | Wet image forming device |
| JP2002365911A (en) * | 2001-06-12 | 2002-12-20 | Ricoh Co Ltd | Development machine and imaging device |
| JP2004233716A (en) * | 2003-01-31 | 2004-08-19 | Kyocera Mita Corp | Liquid development device and image forming apparatus equipped therewith |
| JP4432415B2 (en) * | 2003-09-11 | 2010-03-17 | セイコーエプソン株式会社 | Liquid developing device, image forming apparatus, and image forming system |
| JP2005189554A (en) * | 2003-12-25 | 2005-07-14 | Kyocera Mita Corp | Liquid developing device |
| JP2005242217A (en) * | 2004-02-27 | 2005-09-08 | Kyocera Mita Corp | Liquid developing device |
| JP2005315943A (en) * | 2004-04-27 | 2005-11-10 | Kyocera Mita Corp | Image forming apparatus |
| JP4821098B2 (en) * | 2004-08-16 | 2011-11-24 | セイコーエプソン株式会社 | Image forming apparatus |
| JP2007065605A (en) * | 2005-08-01 | 2007-03-15 | Ricoh Co Ltd | Image forming apparatus |
| JP4765555B2 (en) * | 2005-10-31 | 2011-09-07 | セイコーエプソン株式会社 | Developing apparatus, image forming apparatus, image forming system, and developing apparatus manufacturing method |
| JP4692226B2 (en) * | 2005-10-31 | 2011-06-01 | セイコーエプソン株式会社 | Developing device, image forming apparatus, and image forming system |
-
2007
- 2007-12-11 JP JP2007319137A patent/JP5013098B2/en not_active Expired - Fee Related
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