JPS5443038A - Electrostatic image developing device - Google Patents

Electrostatic image developing device

Info

Publication number
JPS5443038A
JPS5443038A JP10924177A JP10924177A JPS5443038A JP S5443038 A JPS5443038 A JP S5443038A JP 10924177 A JP10924177 A JP 10924177A JP 10924177 A JP10924177 A JP 10924177A JP S5443038 A JPS5443038 A JP S5443038A
Authority
JP
Japan
Prior art keywords
electrostatic image
developing device
image developing
developer
carrier
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
Application number
JP10924177A
Other languages
Japanese (ja)
Other versions
JPS6316736B2 (en
Inventor
Nagao Hosono
Koichi Kinoshita
Toru Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to JP10924177A priority Critical patent/JPS5443038A/en
Application filed by Canon Inc filed Critical Canon Inc
Priority to GB7835338A priority patent/GB2006054B/en
Priority to GB8102787A priority patent/GB2081135B/en
Priority to DE2858816A priority patent/DE2858816C2/en
Priority to DE19782839178 priority patent/DE2839178A1/en
Priority to DE2858717A priority patent/DE2858717C2/de
Priority to FR7825917A priority patent/FR2402896A1/en
Publication of JPS5443038A publication Critical patent/JPS5443038A/en
Priority to US06/267,771 priority patent/US4386577A/en
Priority to US06/340,299 priority patent/US4458627A/en
Priority to US06/340,298 priority patent/US4387664A/en
Priority to US06/340,464 priority patent/US4421057A/en
Priority to SG242/83A priority patent/SG24283G/en
Priority to HK356/84A priority patent/HK35684A/en
Publication of JPS6316736B2 publication Critical patent/JPS6316736B2/ja
Priority to US07/557,115 priority patent/USRE34724E/en
Granted legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To achieve the improvement in the quality of the images developed without causing uneven densities by enabling a developer carrier to be formed by leaving such a spacing at which the developer does not contact the nonimage part of an electrostatic image carrier.
JP10924177A 1977-09-10 1977-09-10 Electrostatic image developing device Granted JPS5443038A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
JP10924177A JPS5443038A (en) 1977-09-10 1977-09-10 Electrostatic image developing device
GB7835338A GB2006054B (en) 1977-09-10 1978-09-01 Developing apparatus for electrostatic image
GB8102787A GB2081135B (en) 1977-09-10 1978-09-01 Developing apparatus for electrostatic image
DE2858816A DE2858816C2 (en) 1977-09-10 1978-09-08 Electrostatic copier development unit
DE19782839178 DE2839178A1 (en) 1977-09-10 1978-09-08 DEVELOPMENT DEVICE FOR CARGO IMAGES
DE2858717A DE2858717C2 (en) 1977-09-10 1978-09-08
FR7825917A FR2402896A1 (en) 1977-09-10 1978-09-08 ELECTROSTATIC IMAGE DEVELOPER
US06/267,771 US4386577A (en) 1977-09-10 1981-05-28 Developing apparatus for electrostatic image
US06/340,464 US4421057A (en) 1977-09-10 1982-01-18 Developing apparatus for electrostatic image
US06/340,299 US4458627A (en) 1977-09-10 1982-01-18 Developing apparatus for electrostatic image
US06/340,298 US4387664A (en) 1977-09-10 1982-01-18 Developing apparatus for electrostatic image
SG242/83A SG24283G (en) 1977-09-10 1983-05-11 Method and apparatus for developer layer formation
HK356/84A HK35684A (en) 1977-09-10 1984-04-26 Method and apparatus for developer layer formation
US07/557,115 USRE34724E (en) 1977-09-10 1990-07-25 Developing apparatus for electrostatic image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10924177A JPS5443038A (en) 1977-09-10 1977-09-10 Electrostatic image developing device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP20467286A Division JPS62182779A (en) 1986-08-30 1986-08-30 Developing device

Publications (2)

Publication Number Publication Date
JPS5443038A true JPS5443038A (en) 1979-04-05
JPS6316736B2 JPS6316736B2 (en) 1988-04-11

Family

ID=14505180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10924177A Granted JPS5443038A (en) 1977-09-10 1977-09-10 Electrostatic image developing device

Country Status (1)

Country Link
JP (1) JPS5443038A (en)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55140858A (en) * 1979-04-20 1980-11-04 Canon Inc Developing unit
JPS5990958U (en) * 1982-12-10 1984-06-20 株式会社リコー developing device
JPS59195672A (en) * 1983-04-21 1984-11-06 Ricoh Co Ltd Device for regulating layer thickness of developer
US4498756A (en) * 1981-04-07 1985-02-12 Tokyo Shibaura Denki Kabushiki Kaisha Developing device
US4508052A (en) * 1982-08-16 1985-04-02 Tokyo Shibaura Denki Kabushiki Kaisha Developing device
JPS625274A (en) * 1985-06-29 1987-01-12 Toshiba Corp Developing device
JPS6224280A (en) * 1985-07-25 1987-02-02 Fuji Xerox Co Ltd Developing device
JPS6224285A (en) * 1985-07-25 1987-02-02 Fuji Xerox Co Ltd Developing device
JPS62172374A (en) * 1986-01-24 1987-07-29 Konishiroku Photo Ind Co Ltd Method for forming multiple color image
JPS642258U (en) * 1987-06-24 1989-01-09
JPH01309080A (en) * 1988-06-08 1989-12-13 Fuji Xerox Co Ltd Developing device
US4903634A (en) * 1985-06-13 1990-02-27 Matsushita Electric Industrial Co., Ltd. Developing device
US4947211A (en) * 1986-12-02 1990-08-07 Matsushita Electric Industrial Co., Ltd. Developing device
JPH03135588A (en) * 1990-04-05 1991-06-10 Canon Inc Developing device
JPH04223487A (en) * 1990-12-26 1992-08-13 Canon Inc Developing device
JPH0561338A (en) * 1992-01-30 1993-03-12 Toshiba Corp Developing device
US5212525A (en) * 1990-10-25 1993-05-18 Fuji Xerox Co., Ltd. Developing magnetic roller having repulsive magnetic poles and developer-limiting member
US5325637A (en) * 1991-10-31 1994-07-05 Konica Corporation Developing apparatus with an improved sleeve
EP0810488A2 (en) * 1996-05-27 1997-12-03 Canon Kabushiki Kaisha Developer regulating member and developing apparatus
US5842089A (en) * 1996-07-24 1998-11-24 Sharp Kabushiki Kaisha Development apparatus for developing electrostatic latent image held by holder by using nonmagnetic one component developer
US6122473A (en) * 1997-03-31 2000-09-19 Canon Kabushiki Kaisha Developer carrying member for carrying developer, apparatus unit detachably mountable on the main assembly of image forming apparatus, and image-forming apparatus
US6144820A (en) * 1998-04-17 2000-11-07 Canon Kabushiki Kaisha Developing apparatus with a sealing member having an insulating layer and a conductive portion
US6195515B1 (en) 1998-08-31 2001-02-27 Canon Kabushiki Kaisha Developing apparatus including a seal member sandwiched between a developer bearing member and a leakage preventing member
US6229979B1 (en) 1997-10-09 2001-05-08 Canon Kabushiki Kaisha Developing charging member supplied with a voltage of a same polarity as that of a developer and not less than a charge starting voltage and a developing charging roller with internal bearing
US6381434B1 (en) 1996-11-14 2002-04-30 Canon Kabushiki Kaisha Developing apparatus with electric field force directing a toner cloud for coating a developer carrying member
US6415127B1 (en) 1999-05-14 2002-07-02 Canon Kabushiki Kaisha Developing apparatus having a direct or alternating current applied thereto
US6498914B2 (en) 2000-03-09 2002-12-24 Canon Kabushiki Kaisha Seal part and developing device having the same
US6549735B2 (en) 1998-08-31 2003-04-15 Canon Kabushiki Kaisha Developing apparatus with longitudinal end leakage preventing member in contact with smooth surface part of a developer carrying member
US7106984B2 (en) 2003-04-30 2006-09-12 Canon Kabushiki Kaisha Image forming apparatus
US8526864B2 (en) 2010-04-01 2013-09-03 Ricoh Company, Ltd. Image developer, process cartridge, and image forming apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5557380A (en) 1994-07-07 1996-09-17 Mita Industrial Co., Ltd. Apparatus for developing an electrostatic latent image having limiting blade holding device

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754963A (en) * 1970-12-23 1973-08-28 Ibm Surface for impression development in electrophotography
JPS4910259A (en) * 1972-05-25 1974-01-29
JPS50146409A (en) * 1974-04-24 1975-11-25
JPS522535A (en) * 1975-06-19 1977-01-10 Xerox Corp Method of and apparatus for adjusting liquid developer in coating device
US4011834A (en) * 1975-10-02 1977-03-15 Xerox Corporation Touchdown electrostatic development apparatus
US4014291A (en) * 1976-01-26 1977-03-29 Nashua Corporation Image developing system
JPS5267640A (en) * 1975-12-03 1977-06-04 Hitachi Ltd Method for developing charge latent image in electronic photography
JPS5273736A (en) * 1975-12-16 1977-06-21 Ricoh Co Ltd Development process for electrostatic latent image
JPS52102732A (en) * 1976-02-25 1977-08-29 Ricoh Co Ltd Electrostatic development
DE2708299A1 (en) * 1976-02-25 1977-09-08 Ricoh Kk DEVICE FOR DEVELOPING AN ELECTROSTATIC IMAGE
JPS5330339U (en) * 1976-08-23 1978-03-15

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5330339B2 (en) * 1972-05-10 1978-08-26

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754963A (en) * 1970-12-23 1973-08-28 Ibm Surface for impression development in electrophotography
JPS4910259A (en) * 1972-05-25 1974-01-29
JPS50146409A (en) * 1974-04-24 1975-11-25
JPS522535A (en) * 1975-06-19 1977-01-10 Xerox Corp Method of and apparatus for adjusting liquid developer in coating device
US4011834A (en) * 1975-10-02 1977-03-15 Xerox Corporation Touchdown electrostatic development apparatus
JPS5267640A (en) * 1975-12-03 1977-06-04 Hitachi Ltd Method for developing charge latent image in electronic photography
JPS5273736A (en) * 1975-12-16 1977-06-21 Ricoh Co Ltd Development process for electrostatic latent image
US4014291A (en) * 1976-01-26 1977-03-29 Nashua Corporation Image developing system
JPS52102732A (en) * 1976-02-25 1977-08-29 Ricoh Co Ltd Electrostatic development
DE2708299A1 (en) * 1976-02-25 1977-09-08 Ricoh Kk DEVICE FOR DEVELOPING AN ELECTROSTATIC IMAGE
JPS5330339U (en) * 1976-08-23 1978-03-15

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0128382B2 (en) * 1979-04-20 1989-06-02 Canon Kk
JPS55140858A (en) * 1979-04-20 1980-11-04 Canon Inc Developing unit
US4498756A (en) * 1981-04-07 1985-02-12 Tokyo Shibaura Denki Kabushiki Kaisha Developing device
US4521098A (en) * 1981-04-07 1985-06-04 Tokyo Shibaura Denki Kabushiki Kaisha Developing device
US4508052A (en) * 1982-08-16 1985-04-02 Tokyo Shibaura Denki Kabushiki Kaisha Developing device
JPS5990958U (en) * 1982-12-10 1984-06-20 株式会社リコー developing device
JPS59195672A (en) * 1983-04-21 1984-11-06 Ricoh Co Ltd Device for regulating layer thickness of developer
US4903634A (en) * 1985-06-13 1990-02-27 Matsushita Electric Industrial Co., Ltd. Developing device
JPS625274A (en) * 1985-06-29 1987-01-12 Toshiba Corp Developing device
JP2557826B2 (en) * 1985-06-29 1996-11-27 株式会社東芝 Development device
JPS6224285A (en) * 1985-07-25 1987-02-02 Fuji Xerox Co Ltd Developing device
JPS6224280A (en) * 1985-07-25 1987-02-02 Fuji Xerox Co Ltd Developing device
JPS62172374A (en) * 1986-01-24 1987-07-29 Konishiroku Photo Ind Co Ltd Method for forming multiple color image
US4947211A (en) * 1986-12-02 1990-08-07 Matsushita Electric Industrial Co., Ltd. Developing device
JPS642258U (en) * 1987-06-24 1989-01-09
JPH01309080A (en) * 1988-06-08 1989-12-13 Fuji Xerox Co Ltd Developing device
JPH03135588A (en) * 1990-04-05 1991-06-10 Canon Inc Developing device
US5212525A (en) * 1990-10-25 1993-05-18 Fuji Xerox Co., Ltd. Developing magnetic roller having repulsive magnetic poles and developer-limiting member
JPH04223487A (en) * 1990-12-26 1992-08-13 Canon Inc Developing device
US5325637A (en) * 1991-10-31 1994-07-05 Konica Corporation Developing apparatus with an improved sleeve
JPH0561338A (en) * 1992-01-30 1993-03-12 Toshiba Corp Developing device
EP0810488A2 (en) * 1996-05-27 1997-12-03 Canon Kabushiki Kaisha Developer regulating member and developing apparatus
US5893013A (en) * 1996-05-27 1999-04-06 Canon Kabushiki Kaisha Developer regulating member and developing apparatus
US5842089A (en) * 1996-07-24 1998-11-24 Sharp Kabushiki Kaisha Development apparatus for developing electrostatic latent image held by holder by using nonmagnetic one component developer
US6381434B1 (en) 1996-11-14 2002-04-30 Canon Kabushiki Kaisha Developing apparatus with electric field force directing a toner cloud for coating a developer carrying member
US6122473A (en) * 1997-03-31 2000-09-19 Canon Kabushiki Kaisha Developer carrying member for carrying developer, apparatus unit detachably mountable on the main assembly of image forming apparatus, and image-forming apparatus
US6229979B1 (en) 1997-10-09 2001-05-08 Canon Kabushiki Kaisha Developing charging member supplied with a voltage of a same polarity as that of a developer and not less than a charge starting voltage and a developing charging roller with internal bearing
US6144820A (en) * 1998-04-17 2000-11-07 Canon Kabushiki Kaisha Developing apparatus with a sealing member having an insulating layer and a conductive portion
US6195515B1 (en) 1998-08-31 2001-02-27 Canon Kabushiki Kaisha Developing apparatus including a seal member sandwiched between a developer bearing member and a leakage preventing member
US6549735B2 (en) 1998-08-31 2003-04-15 Canon Kabushiki Kaisha Developing apparatus with longitudinal end leakage preventing member in contact with smooth surface part of a developer carrying member
US6415127B1 (en) 1999-05-14 2002-07-02 Canon Kabushiki Kaisha Developing apparatus having a direct or alternating current applied thereto
US6498914B2 (en) 2000-03-09 2002-12-24 Canon Kabushiki Kaisha Seal part and developing device having the same
US7106984B2 (en) 2003-04-30 2006-09-12 Canon Kabushiki Kaisha Image forming apparatus
US8526864B2 (en) 2010-04-01 2013-09-03 Ricoh Company, Ltd. Image developer, process cartridge, and image forming apparatus

Also Published As

Publication number Publication date
JPS6316736B2 (en) 1988-04-11

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