EP1505452A3 - Toner, toner container, two-component developer and image forming method and apparatus using the toner - Google Patents

Toner, toner container, two-component developer and image forming method and apparatus using the toner Download PDF

Info

Publication number
EP1505452A3
EP1505452A3 EP04017848A EP04017848A EP1505452A3 EP 1505452 A3 EP1505452 A3 EP 1505452A3 EP 04017848 A EP04017848 A EP 04017848A EP 04017848 A EP04017848 A EP 04017848A EP 1505452 A3 EP1505452 A3 EP 1505452A3
Authority
EP
European Patent Office
Prior art keywords
toner
image forming
weight
forming method
image
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.)
Withdrawn
Application number
EP04017848A
Other languages
German (de)
French (fr)
Other versions
EP1505452A2 (en
Inventor
Kumi Hasegawa
Mitsuo Aoki
Bing Shu
Keiko Shiraishi
Toyoshi Sawada
Masashi Nagayama
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of EP1505452A2 publication Critical patent/EP1505452A2/en
Publication of EP1505452A3 publication Critical patent/EP1505452A3/en
Withdrawn legal-status Critical Current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
    • G03G9/0821—Developers with toner particles characterised by physical parameters
    • 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
    • G03G9/083—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
    • G03G9/09—Colouring agents for toner particles
    • G03G9/0902—Inorganic compounds

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

A toner including a binder resin; and a colorant including an iron oxide compound including Ti in such an amount that the weight of Ti atom is from 10 to 45 % by weight based on the weight of Fe atom therein when measured with a wavelength dispersive fluorescent X-ray analyzer, wherein the content of the black iron oxide compound in the toner is from 15 to 40 % by weight, and the coercive force of the toner is from 2 to 15 kA/m in a magnetic field of 398 Am2/Kg when measured with a multi-sample rotation type magnetization measurement system from Toei Industry Co., Ltd. A toner container containing the toner. A two-component developer including the toner and a carrier. An image forming method in which a toner image is formed by performing charging; latent image forming; developing using a developer including the toner; image transferring; image fixing; and cleaning. A process cartridge (30) including at least a developing device (33) using the toner and a housing (35).
EP04017848A 2003-07-29 2004-07-28 Toner, toner container, two-component developer and image forming method and apparatus using the toner Withdrawn EP1505452A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2003203177 2003-07-29
JP2003203177 2003-07-29
JP2003305302 2003-08-28
JP2003305302 2003-08-28

Publications (2)

Publication Number Publication Date
EP1505452A2 EP1505452A2 (en) 2005-02-09
EP1505452A3 true EP1505452A3 (en) 2005-09-07

Family

ID=33554512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04017848A Withdrawn EP1505452A3 (en) 2003-07-29 2004-07-28 Toner, toner container, two-component developer and image forming method and apparatus using the toner

Country Status (1)

Country Link
EP (1) EP1505452A3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1875313B1 (en) * 2005-04-15 2013-06-19 Canon Kabushiki Kaisha Black toner
RU2427866C2 (en) 2007-02-02 2011-08-27 Кэнон Кабусики Кайся Cyan toner, magenta toner, yellow toner, black toner and method of forming full-colour image

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402026A2 (en) * 1989-05-30 1990-12-12 Toda Kogyo Corp. Black pigment particles
EP0950926A2 (en) * 1998-04-17 1999-10-20 Toda Kogyo Corp. Black magnetic composite particles for black magnetic toner and black magnetic toner using the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402026A2 (en) * 1989-05-30 1990-12-12 Toda Kogyo Corp. Black pigment particles
EP0950926A2 (en) * 1998-04-17 1999-10-20 Toda Kogyo Corp. Black magnetic composite particles for black magnetic toner and black magnetic toner using the same

Also Published As

Publication number Publication date
EP1505452A2 (en) 2005-02-09

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