ATE164459T1 - COMPOSITION AND METHOD FOR DEVELOPING LATENT ELECTROSTATIC IMAGES - Google Patents

COMPOSITION AND METHOD FOR DEVELOPING LATENT ELECTROSTATIC IMAGES

Info

Publication number
ATE164459T1
ATE164459T1 AT89116016T AT89116016T ATE164459T1 AT E164459 T1 ATE164459 T1 AT E164459T1 AT 89116016 T AT89116016 T AT 89116016T AT 89116016 T AT89116016 T AT 89116016T AT E164459 T1 ATE164459 T1 AT E164459T1
Authority
AT
Austria
Prior art keywords
composition
latent electrostatic
electrostatic images
developing latent
magnetic toner
Prior art date
Application number
AT89116016T
Other languages
German (de)
Inventor
Kazuo Aoki
Akira Kakinuma
Megumi Saito
Motohiko Makino
Original Assignee
Tdk Corp
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 claimed from JP63213812A external-priority patent/JP2787687B2/en
Priority claimed from JP1152978A external-priority patent/JP2807743B2/en
Application filed by Tdk Corp filed Critical Tdk Corp
Application granted granted Critical
Publication of ATE164459T1 publication Critical patent/ATE164459T1/en

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
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • 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
    • 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
    • G03G9/0819—Developers with toner particles characterised by the dimensions of the particles
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

A composition for developing electrostatic latent images in electrographic printing or copying machinery is provided in which 10% to less than 40% by weight of a carrier having a mean particle diameter of from 10 to 35 mu m is blended with a magnetic toner comprising magnetic powder and a resin. Conventional charge control agents, especially metal complexes of azo dyes and Nigrosine dyes should be excluded from the magnetic toner.
AT89116016T 1988-08-30 1989-08-30 COMPOSITION AND METHOD FOR DEVELOPING LATENT ELECTROSTATIC IMAGES ATE164459T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63213812A JP2787687B2 (en) 1988-08-30 1988-08-30 Electrostatic latent image developer and developing method
JP1152978A JP2807743B2 (en) 1989-06-15 1989-06-15 Electrostatic latent image developer and developing method

Publications (1)

Publication Number Publication Date
ATE164459T1 true ATE164459T1 (en) 1998-04-15

Family

ID=26481732

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89116016T ATE164459T1 (en) 1988-08-30 1989-08-30 COMPOSITION AND METHOD FOR DEVELOPING LATENT ELECTROSTATIC IMAGES

Country Status (6)

Country Link
EP (1) EP0357042B1 (en)
AT (1) ATE164459T1 (en)
AU (1) AU628074B2 (en)
CA (1) CA1338398C (en)
DE (1) DE68928614T2 (en)
DK (1) DK174456B1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07111588B2 (en) * 1990-04-11 1995-11-29 株式会社巴川製紙所 Magnetic toner
EP0658821B1 (en) * 1993-11-30 1999-01-13 Konica Corporation Two-component type developer and image forming process
DE69510740T2 (en) * 1994-08-31 1999-12-02 Mita Industrial Co., Ltd. Toner for two-component developers
EP0703503A1 (en) * 1994-08-31 1996-03-27 Mita Industrial Co., Ltd. Toner for a two-component type developer
US5580691A (en) * 1994-08-31 1996-12-03 Mita Industrial Co., Ltd. Toner for a two-component type developer
JPH0876417A (en) * 1994-08-31 1996-03-22 Mita Ind Co Ltd Toner for binary system developer
EP0704767A1 (en) * 1994-08-31 1996-04-03 Mita Industrial Co., Ltd. A two-component type developer
JP3021294B2 (en) * 1994-09-02 2000-03-15 三田工業株式会社 Development method
JP3021295B2 (en) * 1994-09-02 2000-03-15 三田工業株式会社 Image forming method
JP3009825B2 (en) * 1994-09-02 2000-02-14 三田工業株式会社 Image forming method
TW340198B (en) * 1996-06-10 1998-09-11 Mitsuta Industry Co Ltd Toner for two-component type developer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2074745A (en) * 1980-04-09 1981-11-04 Ricoh Kk Developer for developing latent electostatic images
GB2088076A (en) * 1980-10-13 1982-06-03 Ricoh Kk Electrophotographic Developing and Transfer Process
JPS5785060A (en) * 1980-11-17 1982-05-27 Mita Ind Co Ltd Composite 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
JPS57124356A (en) * 1981-01-26 1982-08-03 Mita Ind Co Ltd Binary magnetic developer
WO1983002013A1 (en) * 1981-11-26 1983-06-09 Kishi, Kenichi Magnetic toner
JPS59176051U (en) * 1983-05-11 1984-11-24 京セラミタ株式会社 Appropriate developer condition detection device for copying machines

Also Published As

Publication number Publication date
DK428689A (en) 1990-03-01
EP0357042A2 (en) 1990-03-07
AU4087289A (en) 1990-03-08
DE68928614T2 (en) 1998-10-22
DK174456B1 (en) 2003-03-24
CA1338398C (en) 1996-06-18
EP0357042A3 (en) 1991-11-06
AU628074B2 (en) 1992-09-10
EP0357042B1 (en) 1998-03-25
DE68928614D1 (en) 1998-04-30
DK428689D0 (en) 1989-08-30

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee