JP2011197219A5 - - Google Patents

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Publication number
JP2011197219A5
JP2011197219A5 JP2010062119A JP2010062119A JP2011197219A5 JP 2011197219 A5 JP2011197219 A5 JP 2011197219A5 JP 2010062119 A JP2010062119 A JP 2010062119A JP 2010062119 A JP2010062119 A JP 2010062119A JP 2011197219 A5 JP2011197219 A5 JP 2011197219A5
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JP
Japan
Prior art keywords
developer
developing device
recovery
carrier
contact
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Application number
JP2010062119A
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Japanese (ja)
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JP5364018B2 (en
JP2011197219A (en
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Priority to JP2010062119A priority Critical patent/JP5364018B2/en
Priority claimed from JP2010062119A external-priority patent/JP5364018B2/en
Publication of JP2011197219A publication Critical patent/JP2011197219A/en
Publication of JP2011197219A5 publication Critical patent/JP2011197219A5/ja
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Publication of JP5364018B2 publication Critical patent/JP5364018B2/en
Expired - Fee Related legal-status Critical Current
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Claims (15)

現像電圧が印加され、像担持体に接触して現像剤を供給する現像剤担持体と、
供給電圧が印加され、前記現像剤担持体に接触して前記現像剤を供給する供給部材と、
前記供給部材へ供給する現像剤を貯蔵する現像剤貯蔵部と、
回収電圧が印加され、前記現像剤担持体に接触して該現像剤担持体から現像剤を回収する回収部材と、
前記回収部材を掃除する掃除部材と
を有することを特徴とする現像装置。 A developer carrying body to which a developing voltage is applied and which supplies the developer in contact with the image carrying body;
A supply member to which a supply voltage is applied and which supplies the developer in contact with the developer carrier;
A developer storage section for storing a developer to be supplied to the supply member;
A recovery member to which a recovery voltage is applied and which contacts the developer carrier and recovers the developer from the developer carrier;
And a cleaning member that cleans the recovery member. 前記現像剤担持体及び前記回収部材は、共にローラ形状であることを特徴とする請求項１記載の現像装置。   The developing device according to claim 1, wherein both the developer carrying member and the collecting member have a roller shape. 前記現像剤担持体の回転方向に対し、前記像担持体と前記現像剤担持体との接触部より下流で、且つ前記現像剤担持体と前記供給部材との接触部より上流で前記現像剤担持体と前記回収部材が接触するように配置されたことを特徴とする請求項２記載の現像装置。   With respect to the rotation direction of the developer carrier, the developer carrier is downstream from the contact portion between the image carrier and the developer carrier and upstream from the contact portion between the developer carrier and the supply member. The developing device according to claim 2, wherein a body and the recovery member are arranged to contact each other. 前記回収部材は、前記供給部材の鉛直方向下方に配置されたことを特徴とする請求項３記載の現像装置。   The developing device according to claim 3, wherein the recovery member is disposed vertically below the supply member. 前記現像剤担持体及び前記回収部材は、互いに周面で接触し、接触部における移動方向が共に同一方向となるように回転することを特徴とする請求項２乃至４の何れか一に記載の現像装置。   5. The developer carrier according to claim 2, wherein the developer carrying member and the recovery member are in contact with each other on a peripheral surface and rotate so that the moving directions in the contact portion are the same direction. 6. Development device. 前記回収部材が金属ローラであることを特徴とする請求項１乃至５の何れか一に記載の現像装置。   The developing device according to claim 1, wherein the recovery member is a metal roller. 前記回収部材の回転軸方向におけるローラ部の幅が、前記現像剤担持体の回転軸方向におけるローラ部の幅より短いことを特徴とする請求項２乃至６の何れか一に記載の現像装置。   The developing device according to claim 2, wherein a width of the roller portion in the rotation axis direction of the collecting member is shorter than a width of the roller portion in the rotation axis direction of the developer carrying member. 前記清掃部材がゴムブレードであることを特徴とする請求項１乃至７の何れか一に記載の現像装置。   The developing device according to claim 1, wherein the cleaning member is a rubber blade. 前記回収部材で回収した現像剤と前記現像剤貯蔵部内の現像剤とを混ぜ合わせる攪拌部材を備えることを特徴とする請求項１乃至８の何れか一に記載の現像装置。   The developing device according to claim 1, further comprising a stirring member that mixes the developer recovered by the recovery member with the developer in the developer storage unit. 前記攪拌部材は導電性を有することを特徴とする請求項９記載の現像装置。   The developing device according to claim 9, wherein the stirring member has conductivity. 前記攪拌部材は、前記回収電圧より絶対値で大きい電圧が印加されることを特徴とする請求項１０記載の現像装置。   The developing device according to claim 10, wherein a voltage having an absolute value larger than the recovery voltage is applied to the stirring member. 前記回収部材で回収した現像剤を、前記現像剤貯蔵部内の上部まで搬送して放出する現像剤搬送部を備えたことを特徴とする請求項１乃至８の何れか一に記載の現像装置。   The developing device according to claim 1, further comprising a developer transport unit configured to transport the developer recovered by the recovery member to an upper part in the developer storage unit and discharge the developer. 前記回収部材で回収した現像剤と前記現像剤貯蔵部内の現像剤とが直接混ざらないように仕切り板を設けたことを特徴とする請求項１２記載の現像装置。   13. The developing device according to claim 12, wherein a partition plate is provided so that the developer recovered by the recovery member and the developer in the developer storage section are not directly mixed. 前記現像剤貯蔵部内の上部にあって、前記現像剤搬送部から放出される前記回収した現像剤を収容する回収現像剤収容部を備えたことを特徴とする請求項１２又は１３記載の現像装置。   14. The developing device according to claim 12, further comprising a recovered developer accommodating portion that is disposed in an upper portion of the developer storage portion and accommodates the recovered developer discharged from the developer conveying portion. . 現像電圧が印加され、像担持体に接触して現像剤を供給する現像剤担持体と、
供給電圧が印加され、前記現像剤担持体に接触して前記現像剤を供給する供給部材と、
前記供給部材へ供給する現像剤を貯蔵する現像剤貯蔵部と、
回収電圧が印加され、前記現像剤担持体に接触して該現像剤担持体から現像剤を回収する回収部材と、
前記回収部材を掃除する掃除部材と
を有することを特徴とする画像現像装置。 A developer carrying body to which a developing voltage is applied and which supplies the developer in contact with the image carrying body;
A supply member to which a supply voltage is applied and which supplies the developer in contact with the developer carrier;
A developer storage section for storing a developer to be supplied to the supply member;
A recovery member to which a recovery voltage is applied and which contacts the developer carrier and recovers the developer from the developer carrier;
An image developing apparatus comprising: a cleaning member that cleans the recovery member .
JP2010062119A 2010-03-18 2010-03-18 Developing device and image forming apparatus Expired - Fee Related JP5364018B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010062119A JP5364018B2 (en) 2010-03-18 2010-03-18 Developing device and image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010062119A JP5364018B2 (en) 2010-03-18 2010-03-18 Developing device and image forming apparatus

Publications (3)

Publication Number Publication Date
JP2011197219A JP2011197219A (en) 2011-10-06
JP2011197219A5 true JP2011197219A5 (en) 2012-07-19
JP5364018B2 JP5364018B2 (en) 2013-12-11

Family

ID=44875555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010062119A Expired - Fee Related JP5364018B2 (en) 2010-03-18 2010-03-18 Developing device and image forming apparatus

Country Status (1)

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JP (1) JP5364018B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5632870B2 (en) 2012-03-28 2014-11-26 株式会社沖データ Developing device, developer conveying device, and image forming apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0328866A (en) * 1989-06-26 1991-02-07 Fujitsu Ltd Developing device
JPH0792797A (en) * 1993-09-22 1995-04-07 Toshiba Corp Developing device
JPH08179605A (en) * 1994-12-27 1996-07-12 Nec Corp Toner agitating machine
JPH08254895A (en) * 1995-03-17 1996-10-01 Toshiba Corp Developing device
JP2001100516A (en) * 1999-09-28 2001-04-13 Minolta Co Ltd Developing device and image forming device using the same
JP2002251070A (en) * 2001-02-23 2002-09-06 Ricoh Co Ltd Developing device and image forming device
JP2003021965A (en) * 2001-07-06 2003-01-24 Canon Inc Developing device, and process cartridge and image forming apparatus equipped with developing device

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