DE3048407C2 - - Google Patents

Info

Publication number
DE3048407C2
DE3048407C2 DE3048407A DE3048407A DE3048407C2 DE 3048407 C2 DE3048407 C2 DE 3048407C2 DE 3048407 A DE3048407 A DE 3048407A DE 3048407 A DE3048407 A DE 3048407A DE 3048407 C2 DE3048407 C2 DE 3048407C2
Authority
DE
Germany
Prior art keywords
toner
magnetic
image
tetroxide
triiron tetroxide
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
DE3048407A
Other languages
German (de)
English (en)
Other versions
DE3048407A1 (de
Inventor
Nobuhiro Suita Osaka Jp Miyakawa
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
Publication of DE3048407A1 publication Critical patent/DE3048407A1/de
Application granted granted Critical
Publication of DE3048407C2 publication Critical patent/DE3048407C2/de
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
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/083—Magnetic toner particles
    • G03G9/0831—Chemical composition of the magnetic components
    • G03G9/0833—Oxides
    • 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
    • G03G9/0835—Magnetic 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
    • G03G9/0838—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)
  • Developing Agents For Electrophotography (AREA)
DE19803048407 1979-12-25 1980-12-22 Magnetischer einkomponentenentwickler vom uebertragungstyp Granted DE3048407A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54167594A JPS5927901B2 (ja) 1979-12-25 1979-12-25 転写型一成分系磁性現像剤

Publications (2)

Publication Number Publication Date
DE3048407A1 DE3048407A1 (de) 1981-09-10
DE3048407C2 true DE3048407C2 (US07655688-20100202-C00086.png) 1992-09-17

Family

ID=15852649

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803048407 Granted DE3048407A1 (de) 1979-12-25 1980-12-22 Magnetischer einkomponentenentwickler vom uebertragungstyp

Country Status (7)

Country Link
US (1) US4495268A (US07655688-20100202-C00086.png)
JP (1) JPS5927901B2 (US07655688-20100202-C00086.png)
BE (1) BE886848A (US07655688-20100202-C00086.png)
CH (1) CH641903A5 (US07655688-20100202-C00086.png)
DE (1) DE3048407A1 (US07655688-20100202-C00086.png)
FR (1) FR2472771B1 (US07655688-20100202-C00086.png)
GB (1) GB2066976B (US07655688-20100202-C00086.png)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500941A1 (fr) * 1981-02-27 1982-09-03 Mita Industrial Co Ltd Revelateur magnetique sec a un composant
JPS58136045A (ja) * 1982-02-08 1983-08-12 Mita Ind Co Ltd 一成分系検電性磁性現像剤
US4526851A (en) * 1983-09-06 1985-07-02 Trw Inc. Magnetic developer compositions
JPS6188153U (US07655688-20100202-C00086.png) * 1984-11-13 1986-06-09
DE3444869A1 (de) * 1984-12-08 1986-06-12 Bayer Ag, 5090 Leverkusen Gefaerbte magnetische toner, verfahren zu deren herstellung und ihre verwendung
US4758493A (en) * 1986-11-24 1988-07-19 Xerox Corporation Magnetic single component toner compositions
EP0423743B1 (en) * 1989-10-17 1995-03-01 Canon Kabushiki Kaisha Magnetic toner
CA2039290C (en) * 1990-03-29 1994-10-11 Masaaki Taya Magnetic toner
JPH0816791B2 (ja) * 1990-09-11 1996-02-21 株式会社巴川製紙所 電子写真用現像剤
US5625438A (en) * 1994-05-12 1997-04-29 Ricoh Company, Ltd. Toner, and devices for electrostatically depositing a uniform application thereof
EP2109009B1 (en) 2007-01-26 2014-12-03 Canon Kabushiki Kaisha Magnetic toner

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137188A (en) * 1975-11-07 1979-01-30 Shigeru Uetake Magnetic toner for electrophotography
US4108786A (en) * 1975-12-16 1978-08-22 Mita Industrial Company Ltd. Magnetic dry developer for electrostatic photography and process for preparation thereof
JPS5359430A (en) * 1976-06-09 1978-05-29 Konishiroku Photo Ind Co Ltd Electrostatic latent image developer
US4142981A (en) * 1977-07-05 1979-03-06 Xerox Corporation Toner combination for carrierless development
DE2907633A1 (de) * 1978-02-28 1979-09-06 Canon Kk Trockener toner fuer die entwicklung von ladungsbildern
JPS5588070A (en) * 1978-11-28 1980-07-03 Mita Ind Co Ltd Developer for electrostatic image
JPS6046428B2 (ja) * 1978-11-28 1985-10-16 京セラミタ株式会社 静電写真複写法
US4272600A (en) * 1980-01-07 1981-06-09 Xerox Corporation Magnetic toners containing cubical magnetite

Also Published As

Publication number Publication date
FR2472771A1 (US07655688-20100202-C00086.png) 1981-07-03
US4495268A (en) 1985-01-22
BE886848A (fr) 1981-04-16
JPS5927901B2 (ja) 1984-07-09
GB2066976A (en) 1981-07-15
DE3048407A1 (de) 1981-09-10
FR2472771B1 (US07655688-20100202-C00086.png) 1983-06-17
JPS5691241A (en) 1981-07-24
GB2066976B (en) 1983-07-06
CH641903A5 (fr) 1984-03-15

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Legal Events

Date Code Title Description
8128 New person/name/address of the agent

Representative=s name: KOHLER, M., DIPL.-CHEM. DR.RER.NAT., 8000 MUENCHEN

8110 Request for examination paragraph 44
8128 New person/name/address of the agent

Representative=s name: GLAESER, J., DIPL.-ING., PAT.-ANW., 2000 HAMBURG

8128 New person/name/address of the agent

Representative=s name: GLAESER, J., DIPL.-ING., PAT.-ANW., 2000 HAMBURG

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee