JPH0424709B2 - - Google Patents

Info

Publication number
JPH0424709B2
JPH0424709B2 JP60256640A JP25664085A JPH0424709B2 JP H0424709 B2 JPH0424709 B2 JP H0424709B2 JP 60256640 A JP60256640 A JP 60256640A JP 25664085 A JP25664085 A JP 25664085A JP H0424709 B2 JPH0424709 B2 JP H0424709B2
Authority
JP
Japan
Prior art keywords
developing device
developing
photosensitive drum
red
black
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.)
Expired - Lifetime
Application number
JP60256640A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62116969A (ja
Inventor
Toshiro Kasamura
Akyoshi Kimura
Masashi Oohashi
Yasuyoshi Yamamoto
Takashi Ozawa
Toshihiko Kusumoto
Tatsuya Shiratori
Nobukazu Sasaki
Michiro Koike
Atsushi Kubota
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
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP60256640A priority Critical patent/JPS62116969A/ja
Priority to US06/931,081 priority patent/US4754301A/en
Publication of JPS62116969A publication Critical patent/JPS62116969A/ja
Publication of JPH0424709B2 publication Critical patent/JPH0424709B2/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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0896—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894
    • G03G15/0898—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894 for preventing toner scattering during operation, e.g. seals
    • 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
    • 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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Color Electrophotography (AREA)
JP60256640A 1985-11-18 1985-11-18 画像形成装置 Granted JPS62116969A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP60256640A JPS62116969A (ja) 1985-11-18 1985-11-18 画像形成装置
US06/931,081 US4754301A (en) 1985-11-18 1986-11-17 Multicolor image forming apparatus with a shutter to prevent mixture of developers in plural developing devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60256640A JPS62116969A (ja) 1985-11-18 1985-11-18 画像形成装置

Publications (2)

Publication Number Publication Date
JPS62116969A JPS62116969A (ja) 1987-05-28
JPH0424709B2 true JPH0424709B2 (en]) 1992-04-27

Family

ID=17295411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60256640A Granted JPS62116969A (ja) 1985-11-18 1985-11-18 画像形成装置

Country Status (2)

Country Link
US (1) US4754301A (en])
JP (1) JPS62116969A (en])

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4833505A (en) * 1987-01-23 1989-05-23 Fuji Xerox Co., Ltd. Latent image color developing system
DE3802227A1 (de) * 1987-01-26 1988-08-04 Minolta Camera Kk Mehrfarben-abbildungsgeraet
US4862216A (en) * 1987-01-28 1989-08-29 Minolta Camera Kabushiki Kaisha Multicolor copying apparatus
US4952987A (en) * 1987-02-24 1990-08-28 Minolta Camera Kabushiki Kaisha Copying machine having plural developing units
JPS63208871A (ja) * 1987-02-26 1988-08-30 Minolta Camera Co Ltd 作像装置
US4875079A (en) * 1987-03-19 1989-10-17 Ricoh Company, Ltd. Toner density control for multicolor electrophotographic copier
JPS63237077A (ja) * 1987-03-25 1988-10-03 Minolta Camera Co Ltd 多色画像形成装置
KR920008748B1 (ko) * 1987-04-17 1992-10-09 마쯔시다덴기산교 가부시기가이샤 다색전자사진장치
JPS649474A (en) * 1987-07-01 1989-01-12 Minolta Camera Kk Copying device capable of simultaneous multicolor copying
JPS6420575A (en) * 1987-07-15 1989-01-24 Minolta Camera Kk Multicolor copying machine
US4913087A (en) * 1987-07-16 1990-04-03 Sharp Kabushiki Kaisha Developing device of a copier
JPS6424263A (en) * 1987-07-21 1989-01-26 Minolta Camera Kk Multicolor image forming device
JPS6473363A (en) * 1987-09-14 1989-03-17 Minolta Camera Kk Exposure controller in image forming device
US4878091A (en) * 1987-09-17 1989-10-31 Konica Corporation Multicolor image forming apparatus
JPS6482057A (en) * 1987-09-25 1989-03-28 Minolta Camera Kk Electrophotographic device
JPH01123264A (ja) * 1987-11-09 1989-05-16 Minolta Camera Co Ltd 同時２色複写可能な複写装置
US4995601A (en) * 1987-12-28 1991-02-26 Canon Kabushiki Kaisha Anti-skew sheet feeding device for image forming apparatus and sheet storage device for use therein
DE68918119T2 (de) * 1988-01-18 1995-04-27 Minolta Camera Kk Verfahren und Gerät zur Erzeugung von mehrfarbigen Bildern.
JPH01185675A (ja) * 1988-01-19 1989-07-25 Minolta Camera Co Ltd 作像装置
US4914454A (en) * 1988-04-14 1990-04-03 Minolta Camera Kabushiki Kaisha Image recording system capable of forming image with different colors in different areas
JP2501866B2 (ja) * 1988-04-15 1996-05-29 シャープ株式会社 電子写真装置
JPH0750356B2 (ja) * 1988-09-30 1995-05-31 キヤノン株式会社 電子写真装置
US5036367A (en) * 1988-11-07 1991-07-30 Konica Corporation Color image forming apparatus
US4913348A (en) * 1988-12-22 1990-04-03 Xerox Corporation Method and apparatus for creating contrasting images at substantially full contrast voltage
US5068691B1 (en) * 1989-06-01 1995-01-24 Fujitsu Ltd Developing device with a controllable pressure release for the developing roller
US5031004A (en) * 1990-02-26 1991-07-09 Xerox Corporation Developement module for a color printer provided unit tower seats
US5019859A (en) * 1990-05-14 1991-05-28 Xerox Corporation Process control for highlight color with developer switching
US5194905A (en) * 1990-11-29 1993-03-16 Xerox Corporation Color printer apparatus for printing selected portions of latent images in various colors
US5119147A (en) * 1990-12-24 1992-06-02 Xerox Corporation Selective coloring of bi-level latent electostatic images
US5353098A (en) * 1992-11-24 1994-10-04 Samsung Electronics Co., Ltd. Image printing apparatus having a rotatable protective cover for a developer carrier roller therein
JP3095050B2 (ja) * 1994-08-22 2000-10-03 キヤノン株式会社 現像装置
KR100230326B1 (ko) * 1997-08-04 1999-11-15 윤종용 화상형성장치의 현상 장치 구동방법
US6560434B2 (en) 2001-01-18 2003-05-06 Lexmark International, Inc. Intermediate transfer member motion control via surface wheel feedback
JP5775861B2 (ja) * 2012-12-12 2015-09-09 京セラドキュメントソリューションズ株式会社 現像装置及び画像形成装置
US12313986B2 (en) * 2021-07-09 2025-05-27 Hewlett-Packard Development Company, L.P. Toner transfer modulators

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570453A (en) * 1968-08-07 1971-03-16 Xerox Corp Development apparatus
JPS5918450Y2 (ja) * 1976-05-17 1984-05-28 富士ゼロツクス株式会社 電子複写機の現像装置
JPS54124734A (en) * 1978-03-20 1979-09-27 Ricoh Co Ltd Magnetic brush developing device
US4336994A (en) * 1980-11-24 1982-06-29 Xerox Corporation Multi-mode color copier
JPS592061A (ja) * 1982-06-28 1984-01-07 Canon Inc 現像装置
JPS60101562A (ja) * 1983-11-08 1985-06-05 Fuji Xerox Co Ltd カラ−複写機の現像装置
JPS60168174A (ja) * 1984-02-13 1985-08-31 Konishiroku Photo Ind Co Ltd 複写機における現像装置
JPS60254065A (ja) * 1984-05-30 1985-12-14 Canon Inc 現像装置

Also Published As

Publication number Publication date
JPS62116969A (ja) 1987-05-28
US4754301A (en) 1988-06-28

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term