JP2009139883A5 - - Google Patents
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- JP2009139883A5 JP2009139883A5 JP2007319138A JP2007319138A JP2009139883A5 JP 2009139883 A5 JP2009139883 A5 JP 2009139883A5 JP 2007319138 A JP2007319138 A JP 2007319138A JP 2007319138 A JP2007319138 A JP 2007319138A JP 2009139883 A5 JP2009139883 A5 JP 2009139883A5
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- JP
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- Prior art keywords
- roller
- length
- axial
- developing
- height
- Prior art date
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- 238000005192 partition Methods 0.000 claims 9
- 230000004323 axial length Effects 0.000 claims 7
- 238000004140 cleaning Methods 0.000 claims 7
- 239000007788 liquid Substances 0.000 claims 7
- 239000000969 carrier Substances 0.000 claims 4
- 238000011084 recovery Methods 0.000 claims 4
- 239000011248 coating agent Substances 0.000 claims 3
- 238000000576 coating method Methods 0.000 claims 3
- 230000018109 developmental process Effects 0.000 claims 3
- 230000002093 peripheral Effects 0.000 claims 2
- 230000001105 regulatory Effects 0.000 claims 1
Claims (8)
周面に溝が形成され、前記現像ローラに液体現像剤を塗布する塗布ローラと、
前記潜像を現像した前記現像ローラをクリーニングする現像ローラクリーニングブレードと、
前記該塗布ローラの鉛直方向の下方に設けられ、前記塗布ローラに塗布される液体現像剤を供給する供給貯留部、前記現像ローラクリーニングブレードで回収した液体現像剤を貯留する回収貯留部、及び前記供給貯留部と前記回収貯留部とを隔てる仕切り部を有する現像剤容器と、
前記仕切り部は、前記塗布ローラの軸方向の中央部と前記軸方向の端部とで異なる鉛直方向の高さの領域が形成されて、前記軸方向の中央部の第１の高さは、前記軸方向の端部の第２の高さより高く形成されると共に、前記仕切り部の第１高さの前記軸方向の長さは、前記塗布ローラの溝が形成される前記軸方向の幅の長さ以上に構成す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;
A developing roller cleaning blade for cleaning the developing roller that has developed the latent image;
A supply reservoir for supplying a liquid developer to be applied to the application roller, a recovery reservoir for storing the liquid developer recovered by the developing roller cleaning blade, and provided below the application roller in the vertical direction; A developer container having a partition part separating the supply storage part and the recovery storage part;
The partition portion is formed with different vertical height regions at the axial center portion of the application roller and the axial end portion, and the first height of the axial center portion is: The axial length of the first height of the partition portion is formed to be higher than the second height of the end portion in the axial direction, and the axial width of the groove of the application roller is formed. A developing device having a length longer than that of the developing device.
前記規制ブレードの前記軸方向長さは、前記塗布ローラの前記軸方向の長さより長い請求項１又は請求項２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 the axial length of the regulating blade is longer than the axial length of the application roller.
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、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、前記潜像を現像した前記現像ローラをクリーニングする現像ローラクリーニングブレード、前記該塗布ローラの鉛直方向の下方に設けられ、前記塗布ローラに塗布される液体現像剤を供給する供給貯留部、前記現像ローラクリーニングブレードで回収した液体現像剤を貯留する回収貯留部、及び前記供給貯留部と前記回収貯留部とを隔てる仕切り部を有する現像部と、を有し、
前記仕切り部は、前記塗布ローラの軸方向の中央部と前記軸方向の端部とで異なる鉛直方向の高さの領域が形成されて、前記軸方向の中央部の第１の高さは、前記軸方向の端部の第２の高さより高く形成されると共に、前記仕切り部の第１高さの前記軸方向の長さは、前記塗布ローラの溝が形成される前記軸方向の幅の長さ以上に構成す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 roller that develops the latent image formed on the image carrier, a coating roller that has a groove formed in the peripheral surface thereof and applies a liquid developer to the developing roller, and the developing roller that developed the latent image are cleaned. A developing roller cleaning blade, a supply storage unit that is provided below the application roller in the vertical direction and supplies the liquid developer applied to the application roller, and a recovery that stores the liquid developer recovered by the development roller cleaning blade A developing unit having a storage unit, and a partition unit separating the supply storage unit and the recovery storage unit,
The partition portion is formed with different vertical height regions at the axial center portion of the application roller and the axial end portion, and the first height of the axial center portion is: The axial length of the first height of the partition portion is formed to be higher than the second height of the end portion in the axial direction, and the axial width of the groove of the application roller is formed. An image forming apparatus configured to be longer than the length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007319138A JP5041156B2 (en) | 2007-12-11 | 2007-12-11 | Developing device and image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007319138A JP5041156B2 (en) | 2007-12-11 | 2007-12-11 | Developing device and image forming apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2009139883A JP2009139883A (en) | 2009-06-25 |
| JP2009139883A5 true JP2009139883A5 (en) | 2011-01-13 |
| JP5041156B2 JP5041156B2 (en) | 2012-10-03 |
Family
ID=40870506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007319138A Expired - Fee Related JP5041156B2 (en) | 2007-12-11 | 2007-12-11 | Developing device and image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5041156B2 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3868139B2 (en) * | 1999-02-15 | 2007-01-17 | 株式会社リコー | Image forming apparatus |
| JP2001075365A (en) * | 1999-07-01 | 2001-03-23 | Ricoh Co Ltd | Wet system image forming device, wet type developing device, and preliminary driving method for wet type developing device |
| JP2002258620A (en) * | 2001-02-28 | 2002-09-11 | Ricoh Co Ltd | Wet image forming device |
| JP4801843B2 (en) * | 2001-03-27 | 2011-10-26 | 株式会社リコー | Liquid developer coating apparatus, developing apparatus, and image forming apparatus |
| JP2002365911A (en) * | 2001-06-12 | 2002-12-20 | Ricoh Co Ltd | Development machine and imaging device |
| JP2005242217A (en) * | 2004-02-27 | 2005-09-08 | Kyocera Mita Corp | Liquid developing device |
| JP4821098B2 (en) * | 2004-08-16 | 2011-11-24 | セイコーエプソン株式会社 | Image forming apparatus |
| JP2006106114A (en) * | 2004-09-30 | 2006-04-20 | Kyocera Mita Corp | Liquid developing device |
-
2007
- 2007-12-11 JP JP2007319138A patent/JP5041156B2/en not_active Expired - Fee Related
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