DE3274307D1 - Magnetic developer - Google Patents

Magnetic developer

Info

Publication number
DE3274307D1
DE3274307D1 DE8282303375T DE3274307T DE3274307D1 DE 3274307 D1 DE3274307 D1 DE 3274307D1 DE 8282303375 T DE8282303375 T DE 8282303375T DE 3274307 T DE3274307 T DE 3274307T DE 3274307 D1 DE3274307 D1 DE 3274307D1
Authority
DE
Germany
Prior art keywords
magnetic developer
developer
magnetic
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
Application number
DE8282303375T
Other languages
German (de)
English (en)
Inventor
Nobuhiro Miyakawa
Masanori Nakamozu-Koen D Fujii
Kouzi Maekawa
Haruo Koyama
Takashi Teshima
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.)
Kyocera Mita Industrial Co Ltd
Original Assignee
Mita Industrial Co 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 Mita Industrial Co Ltd filed Critical Mita Industrial Co Ltd
Application granted granted Critical
Publication of DE3274307D1 publication Critical patent/DE3274307D1/de
Expired 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
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/083—Magnetic toner particles
    • G03G9/0836—Other physical parameters of the magnetic components
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/083—Magnetic toner particles
    • G03G9/0837—Structural characteristics of the magnetic components, e.g. shape, crystallographic structure
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/083—Magnetic toner particles
    • G03G9/0838—Size of magnetic components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/001—Electric or magnetic imagery, e.g., xerography, electrography, magnetography, etc. Process, composition, or product
    • Y10S430/104—One component toner

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Developing Agents For Electrophotography (AREA)
DE8282303375T 1981-06-26 1982-06-28 Magnetic developer Expired DE3274307D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56098281A JPS581156A (ja) 1981-06-26 1981-06-26 磁性現像剤の製造方法

Publications (1)

Publication Number Publication Date
DE3274307D1 true DE3274307D1 (en) 1987-01-02

Family

ID=14215538

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282303375T Expired DE3274307D1 (en) 1981-06-26 1982-06-28 Magnetic developer

Country Status (5)

Country Link
US (1) US4407923A (enExample)
EP (1) EP0070117B1 (enExample)
JP (1) JPS581156A (enExample)
CA (1) CA1172496A (enExample)
DE (1) DE3274307D1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4609607A (en) * 1982-08-06 1986-09-02 Canon Kabushiki Kaisha Magnetic toner and process for producing the same
US4935325A (en) * 1987-09-10 1990-06-19 Canon Kabushiki Kaisha Toner and image forming method using magnetic material with specific tap density and linseed oil absorption
USH1247H (en) 1989-02-27 1993-11-02 Nash Robert J Conductive developer compositions and processes thereof
DE19725390A1 (de) * 1997-06-16 1998-12-24 Bayer Ag Verwendung von freifließendem, magnetischen Eisenoxid mit 50 bis 73 Gew.-% Eisengehalt
GB0126103D0 (en) 2001-10-31 2002-01-02 Avecia Ltd Ink compositions

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3520811A (en) * 1967-11-13 1970-07-21 Du Pont Coated magnetic agglomerates containing chromium dioxide
US3645770A (en) * 1968-04-22 1972-02-29 Xerox Corp Improved method for developing xerographic images
US3627682A (en) * 1968-10-16 1971-12-14 Du Pont Encapsulated particulate binary magnetic toners for developing images
US3839029A (en) * 1971-07-08 1974-10-01 Xerox Corp Electrostatographic development with ferrite developer materials
US4137188A (en) * 1975-11-07 1979-01-30 Shigeru Uetake Magnetic toner for electrophotography
JPS53137148A (en) * 1977-05-02 1978-11-30 Xerox Corp Developing agent and method of forming image
JPS6036082B2 (ja) * 1978-10-27 1985-08-19 ティーディーケイ株式会社 電子写真磁性トナ−用フエライト粉体およびその製造方法
JPS5569150A (en) * 1978-11-20 1980-05-24 Tdk Corp Production of magnetite powder for electrophotographic magnetic toner
JPS6046428B2 (ja) * 1978-11-28 1985-10-16 京セラミタ株式会社 静電写真複写法
JPS5588070A (en) * 1978-11-28 1980-07-03 Mita Ind Co Ltd Developer for electrostatic image
US4220698A (en) * 1978-12-20 1980-09-02 Reprographic Materials, Inc. Direct imaging pressure fixable magnetic toners
US4272600A (en) * 1980-01-07 1981-06-09 Xerox Corporation Magnetic toners containing cubical magnetite
JPS56101150A (en) * 1980-01-16 1981-08-13 Mita Ind Co Ltd One-component magnetic developer for developing and transferring positive charge image
JPS5735867A (en) * 1980-08-14 1982-02-26 Ricoh Co Ltd Magnetic toner particle
JPS5745554A (en) * 1980-09-02 1982-03-15 Mita Ind Co Ltd Magnetic developer
JPS5793350A (en) * 1980-12-02 1982-06-10 Mita Ind Co Ltd One-component system magnetic developer
DE3170891D1 (en) * 1980-11-27 1985-07-11 Mita Industrial Co Ltd A one-component type magnetic developer
US4414321A (en) * 1980-11-27 1983-11-08 Mita Industrial Co. Ltd. Dry composite blended magnetic developer of resin encapsulated fine magnetite and resin encapsulated coarse magnetite

Also Published As

Publication number Publication date
EP0070117A2 (en) 1983-01-19
US4407923A (en) 1983-10-04
EP0070117B1 (en) 1986-11-12
JPH0381145B2 (enExample) 1991-12-27
JPS581156A (ja) 1983-01-06
EP0070117A3 (en) 1983-11-02
CA1172496A (en) 1984-08-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee