JPS56144452A - Electrophotographic recorder - Google Patents

Electrophotographic recorder

Info

Publication number
JPS56144452A
JPS56144452A JP4799180A JP4799180A JPS56144452A JP S56144452 A JPS56144452 A JP S56144452A JP 4799180 A JP4799180 A JP 4799180A JP 4799180 A JP4799180 A JP 4799180A JP S56144452 A JPS56144452 A JP S56144452A
Authority
JP
Japan
Prior art keywords
developer
color
developing means
photoreceptor
toner
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
JP4799180A
Other languages
Japanese (ja)
Other versions
JPH024903B2 (en
Inventor
Masayasu Anzai
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4799180A priority Critical patent/JPS56144452A/en
Publication of JPS56144452A publication Critical patent/JPS56144452A/en
Publication of JPH024903B2 publication Critical patent/JPH024903B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0105—Details of unit
    • G03G15/0126—Details of unit using a solid developer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE:To make sharp images by providing latent image formation, development of the dry type toner, another latent image formation, and development of the dry toner, putting the developer of the 2nd development into the noncontact state with a photoreceptor and electro-mechanically giving disturbance to said developer. CONSTITUTION:The 1st latent image forming means for forming charge on a recorder, and a developing means for the dry toner of the 1st color are provided, and the developing means for the 2nd color is provided. The developer of this developing means is put in the noncontact state with a photoreceptor. The developing means of the 2nd color has a magnetic roll 6, a sleeve 7, and the 2nd color developer 8, and vias boltages Vb, Vc are applied by DC, AC power sources 9, 10 to the sleeve 7. The efect of firmly holding the toner on the photoreceptor is accomplished by the DC bias voltage Vb, and the AC bias voltage Vc is applied in the 100- 1,000V range to disturb the attraction forces among the developers, thereby making up the decrease in developing capacity.
JP4799180A 1980-04-14 1980-04-14 Electrophotographic recorder Granted JPS56144452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4799180A JPS56144452A (en) 1980-04-14 1980-04-14 Electrophotographic recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4799180A JPS56144452A (en) 1980-04-14 1980-04-14 Electrophotographic recorder

Publications (2)

Publication Number Publication Date
JPS56144452A true JPS56144452A (en) 1981-11-10
JPH024903B2 JPH024903B2 (en) 1990-01-30

Family

ID=12790779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4799180A Granted JPS56144452A (en) 1980-04-14 1980-04-14 Electrophotographic recorder

Country Status (1)

Country Link
JP (1) JPS56144452A (en)

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58219576A (en) * 1982-06-15 1983-12-21 Fujitsu Ltd Developing device
JPS59222847A (en) * 1983-06-02 1984-12-14 Konishiroku Photo Ind Co Ltd Developing method
JPS6021072A (en) * 1983-07-14 1985-02-02 Konishiroku Photo Ind Co Ltd Developing method and device
JPS6076766A (en) * 1983-10-04 1985-05-01 Konishiroku Photo Ind Co Ltd Recording method of color image
JPS6095571A (en) * 1983-10-31 1985-05-28 Canon Inc Developing device
JPS60131549A (en) * 1983-12-20 1985-07-13 Konishiroku Photo Ind Co Ltd Developing method
JPS60147754A (en) * 1984-01-12 1985-08-03 Fuji Xerox Co Ltd Color printer for multicolor printing
JPS60159754A (en) * 1984-01-30 1985-08-21 Konishiroku Photo Ind Co Ltd Image forming method
EP0153038A2 (en) 1984-01-30 1985-08-28 Konica Corporation Method of forming images
DE3525414A1 (en) * 1984-07-18 1986-01-23 Konishiroku Photo Industry Co., Ltd., Tokio/Tokyo METHOD AND DEVICE FOR GENERATING A MULTICOLOR IMAGE
JPS6118976A (en) * 1984-07-06 1986-01-27 Konishiroku Photo Ind Co Ltd Image forming method
JPS6118977A (en) * 1984-07-06 1986-01-27 Konishiroku Photo Ind Co Ltd Image forming device
JPS6134563A (en) * 1984-07-26 1986-02-18 Fuji Xerox Co Ltd Multicolor developing device
JPS6159358A (en) * 1984-08-30 1986-03-26 Konishiroku Photo Ind Co Ltd Formation of image
JPS61118775A (en) * 1984-11-15 1986-06-06 Konishiroku Photo Ind Co Ltd Method and device for image formation
JPS61126565A (en) * 1984-11-22 1986-06-14 Minolta Camera Co Ltd Two color developing method
JPS61162070A (en) * 1985-01-11 1986-07-22 Canon Inc Polychromatic developing device
JPS61170754A (en) * 1985-01-24 1986-08-01 Konishiroku Photo Ind Co Ltd Color image forming device
JPS61188560A (en) * 1985-02-16 1986-08-22 Konishiroku Photo Ind Co Ltd Multi-color image forming device
JPS61193165A (en) * 1985-02-20 1986-08-27 Konishiroku Photo Ind Co Ltd Image forming device
JPS61223856A (en) * 1985-03-29 1986-10-04 Konishiroku Photo Ind Co Ltd Multicolored image forming device
JPS62118372A (en) * 1985-11-19 1987-05-29 Ricoh Co Ltd Developing device
JPS62166363A (en) * 1986-01-20 1987-07-22 Fuji Xerox Co Ltd Developing device
JPS6321955U (en) * 1986-07-29 1988-02-13
JPS6341873A (en) * 1986-08-08 1988-02-23 Canon Inc Two-color electrophotographic device
JPS6363063A (en) * 1986-09-03 1988-03-19 Canon Inc Two-color electrophotographic device
JPS6385657A (en) * 1986-09-30 1988-04-16 Toshiba Corp Recorder
EP0280337A2 (en) * 1983-10-03 1988-08-31 Konica Corporation Multiplex image reproducing method
JPS63237078A (en) * 1987-03-26 1988-10-03 Toshiba Corp Recorder
JPH01123265A (en) * 1987-11-09 1989-05-16 Oki Electric Ind Co Ltd Two-color image forming device
JPH01193768A (en) * 1988-08-18 1989-08-03 Canon Inc Electrophotographic device
JPH01219773A (en) * 1988-02-26 1989-09-01 Canon Inc Image forming device provided with a means to form plural developed image on image carrier
JPH01269960A (en) * 1988-04-21 1989-10-27 Canon Inc Multicolor image forming device
US4887102A (en) * 1987-02-27 1989-12-12 Canon Kabushiki Kaisha Image forming apparatus
JPH02154278A (en) * 1988-12-07 1990-06-13 Matsushita Electric Ind Co Ltd Color picture forming device
US4937630A (en) * 1986-12-10 1990-06-26 Canon Kabushiki Kaisha Image forming apparatus employing non-magnetic and magnetic toner
JPH02167577A (en) * 1989-11-13 1990-06-27 Konica Corp Color image forming method
US5001028A (en) * 1988-08-15 1991-03-19 Eastman Kodak Company Electrophotographic method using hard magnetic carrier particles
US5030996A (en) * 1989-08-31 1991-07-09 Canon Kabushiki Kaisha Image forming apparatus with AC bias voltages for preventing developer mixture
US5066979A (en) * 1989-01-13 1991-11-19 Canon Kabushiki Kaisha Color image forming apparatus wherein plural colors can be formed through one printing cycle
US5157483A (en) * 1987-06-22 1992-10-20 Konica Corporation Multicolor image forming method and apparatus
US5409791A (en) * 1993-05-20 1995-04-25 Eastman Kodak Company Image forming method and apparatus
US5469245A (en) * 1992-09-14 1995-11-21 Fuji Xerox Co., Ltd. Development method and apparatus and multicolor image forming apparatus using these
US5532804A (en) * 1993-07-16 1996-07-02 Fuji Xerox Co., Ltd. Device for developing an electrostatic image on an image member
US5669050A (en) * 1993-12-29 1997-09-16 Canon Kabushiki Kaisha Developing apparatus using blank pulse bias
US5911093A (en) * 1996-12-24 1999-06-08 Canon Kabushiki Kaisha Multi-color image forming apparatus capable of preventing contamination of re-charger
US5983045A (en) * 1996-11-14 1999-11-09 Canon Kabushiki Kaisha Image forming apparatus for forming plural toner images on photosensitive member and for transferring toner images onto transfer material collectively
US6975825B2 (en) 2002-02-28 2005-12-13 Canon Kabushiki Kaisha Developing apparatus including first and second magnets with poles arranged to supply developer without contamination

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331136A (en) * 1976-06-30 1978-03-24 Minnesota Mining & Mfg Method of selectively attaching toner particles on surface of material
JPS54124546U (en) * 1978-02-20 1979-08-31
JPS54138439A (en) * 1978-04-19 1979-10-26 Ricoh Co Ltd Two-color developing method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331136A (en) * 1976-06-30 1978-03-24 Minnesota Mining & Mfg Method of selectively attaching toner particles on surface of material
JPS54124546U (en) * 1978-02-20 1979-08-31
JPS54138439A (en) * 1978-04-19 1979-10-26 Ricoh Co Ltd Two-color developing method

Cited By (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58219576A (en) * 1982-06-15 1983-12-21 Fujitsu Ltd Developing device
JPS59222847A (en) * 1983-06-02 1984-12-14 Konishiroku Photo Ind Co Ltd Developing method
JPS6021072A (en) * 1983-07-14 1985-02-02 Konishiroku Photo Ind Co Ltd Developing method and device
EP0280337A2 (en) * 1983-10-03 1988-08-31 Konica Corporation Multiplex image reproducing method
JPH0228865B2 (en) * 1983-10-04 1990-06-26 Konishiroku Photo Ind
JPS6076766A (en) * 1983-10-04 1985-05-01 Konishiroku Photo Ind Co Ltd Recording method of color image
JPS6095571A (en) * 1983-10-31 1985-05-28 Canon Inc Developing device
JPH0527863B2 (en) * 1983-10-31 1993-04-22 Canon Kk
JPS60131549A (en) * 1983-12-20 1985-07-13 Konishiroku Photo Ind Co Ltd Developing method
JPH058424B2 (en) * 1983-12-20 1993-02-02 Konishiroku Photo Ind
JPS60147754A (en) * 1984-01-12 1985-08-03 Fuji Xerox Co Ltd Color printer for multicolor printing
JPS60159754A (en) * 1984-01-30 1985-08-21 Konishiroku Photo Ind Co Ltd Image forming method
EP0153038A2 (en) 1984-01-30 1985-08-28 Konica Corporation Method of forming images
JPS6118976A (en) * 1984-07-06 1986-01-27 Konishiroku Photo Ind Co Ltd Image forming method
JPS6118977A (en) * 1984-07-06 1986-01-27 Konishiroku Photo Ind Co Ltd Image forming device
DE3525414A1 (en) * 1984-07-18 1986-01-23 Konishiroku Photo Industry Co., Ltd., Tokio/Tokyo METHOD AND DEVICE FOR GENERATING A MULTICOLOR IMAGE
JPH0469899B2 (en) * 1984-07-26 1992-11-09 Fuji Xerox Co Ltd
JPS6134563A (en) * 1984-07-26 1986-02-18 Fuji Xerox Co Ltd Multicolor developing device
JPH0570150B2 (en) * 1984-08-30 1993-10-04 Konishiroku Photo Ind
JPS6159358A (en) * 1984-08-30 1986-03-26 Konishiroku Photo Ind Co Ltd Formation of image
JPS61118775A (en) * 1984-11-15 1986-06-06 Konishiroku Photo Ind Co Ltd Method and device for image formation
JPH0228866B2 (en) * 1984-11-15 1990-06-26 Konishiroku Photo Ind
JPS61126565A (en) * 1984-11-22 1986-06-14 Minolta Camera Co Ltd Two color developing method
JPH0560102B2 (en) * 1984-11-22 1993-09-01 Minolta Camera Kk
JPS61162070A (en) * 1985-01-11 1986-07-22 Canon Inc Polychromatic developing device
JPS61170754A (en) * 1985-01-24 1986-08-01 Konishiroku Photo Ind Co Ltd Color image forming device
JPS61188560A (en) * 1985-02-16 1986-08-22 Konishiroku Photo Ind Co Ltd Multi-color image forming device
JPS61193165A (en) * 1985-02-20 1986-08-27 Konishiroku Photo Ind Co Ltd Image forming device
JPH0228867B2 (en) * 1985-03-29 1990-06-26 Konishiroku Photo Ind
JPS61223856A (en) * 1985-03-29 1986-10-04 Konishiroku Photo Ind Co Ltd Multicolored image forming device
JPS62118372A (en) * 1985-11-19 1987-05-29 Ricoh Co Ltd Developing device
JPS62166363A (en) * 1986-01-20 1987-07-22 Fuji Xerox Co Ltd Developing device
JPS6321955U (en) * 1986-07-29 1988-02-13
JPS6341873A (en) * 1986-08-08 1988-02-23 Canon Inc Two-color electrophotographic device
JPS6363063A (en) * 1986-09-03 1988-03-19 Canon Inc Two-color electrophotographic device
JPS6385657A (en) * 1986-09-30 1988-04-16 Toshiba Corp Recorder
US4937630A (en) * 1986-12-10 1990-06-26 Canon Kabushiki Kaisha Image forming apparatus employing non-magnetic and magnetic toner
US4887102A (en) * 1987-02-27 1989-12-12 Canon Kabushiki Kaisha Image forming apparatus
JPS63237078A (en) * 1987-03-26 1988-10-03 Toshiba Corp Recorder
US5157483A (en) * 1987-06-22 1992-10-20 Konica Corporation Multicolor image forming method and apparatus
JPH01123265A (en) * 1987-11-09 1989-05-16 Oki Electric Ind Co Ltd Two-color image forming device
JPH01219773A (en) * 1988-02-26 1989-09-01 Canon Inc Image forming device provided with a means to form plural developed image on image carrier
JPH01269960A (en) * 1988-04-21 1989-10-27 Canon Inc Multicolor image forming device
US5001028A (en) * 1988-08-15 1991-03-19 Eastman Kodak Company Electrophotographic method using hard magnetic carrier particles
JPH01193768A (en) * 1988-08-18 1989-08-03 Canon Inc Electrophotographic device
JPH02154278A (en) * 1988-12-07 1990-06-13 Matsushita Electric Ind Co Ltd Color picture forming device
US5066979A (en) * 1989-01-13 1991-11-19 Canon Kabushiki Kaisha Color image forming apparatus wherein plural colors can be formed through one printing cycle
US5030996A (en) * 1989-08-31 1991-07-09 Canon Kabushiki Kaisha Image forming apparatus with AC bias voltages for preventing developer mixture
JPH02167577A (en) * 1989-11-13 1990-06-27 Konica Corp Color image forming method
JPH0468630B2 (en) * 1989-11-13 1992-11-02 Konishiroku Photo Ind
US5469245A (en) * 1992-09-14 1995-11-21 Fuji Xerox Co., Ltd. Development method and apparatus and multicolor image forming apparatus using these
US5409791A (en) * 1993-05-20 1995-04-25 Eastman Kodak Company Image forming method and apparatus
US5532804A (en) * 1993-07-16 1996-07-02 Fuji Xerox Co., Ltd. Device for developing an electrostatic image on an image member
US5669050A (en) * 1993-12-29 1997-09-16 Canon Kabushiki Kaisha Developing apparatus using blank pulse bias
US5983045A (en) * 1996-11-14 1999-11-09 Canon Kabushiki Kaisha Image forming apparatus for forming plural toner images on photosensitive member and for transferring toner images onto transfer material collectively
US5911093A (en) * 1996-12-24 1999-06-08 Canon Kabushiki Kaisha Multi-color image forming apparatus capable of preventing contamination of re-charger
US6975825B2 (en) 2002-02-28 2005-12-13 Canon Kabushiki Kaisha Developing apparatus including first and second magnets with poles arranged to supply developer without contamination

Also Published As

Publication number Publication date
JPH024903B2 (en) 1990-01-30

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