ES2091302T3 - ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE. - Google Patents

ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE.

Info

Publication number
ES2091302T3
ES2091302T3 ES91311032T ES91311032T ES2091302T3 ES 2091302 T3 ES2091302 T3 ES 2091302T3 ES 91311032 T ES91311032 T ES 91311032T ES 91311032 T ES91311032 T ES 91311032T ES 2091302 T3 ES2091302 T3 ES 2091302T3
Authority
ES
Spain
Prior art keywords
load
electrophotographic toner
negative charge
toner
assistant
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
ES91311032T
Other languages
Spanish (es)
Inventor
Noriaki Tsubota
Masahiko Kubo
Kazuo Fuji
Akihiro Watanabe
Yoshihisa Kuramae
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 ES2091302T3 publication Critical patent/ES2091302T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03G9/097—Plasticisers; Charge controlling agents
    • 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
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09783—Organo-metallic compounds

Abstract

UN TONER ELECTROFOTOGRAFICO PARA CARGA DE NEGATIVOS QUE CONSTA DE UNA SAL AMONIACO CUATERNARIA QUE TIENE UN ANION OXIACIDO COMO ASISTENTE DE CONTROL DE CARGA EN COMBINACION CON UN AGENTE DE CONTROL DE CARGA PARA LA CARGA NEGATIVA, UNA RESINA DE FIJACION Y UN COLORANTE. LA SAL AMONIACO CUATERNARIA UTILIZADA COMO ASISTENTE ES INCOMPATIBLE CON LA RESINA DE FIJACION PERO DISPERSABLE EN LA MISMA. EL TONER PROPORCIONA UNA DISTRIBUCION NITIDA DE LA CANTIDAD DE CARGA DE MANERA TAL QUE SE IMPIDE EFICAZMENTE LA FORMACION DE PARTICULAS DE TONER ALTAMENTE CARGADAS QUE NO CONTRIBUYEN AL DESARROLLO Y DE LAS PARTICULAS DE TONER POBREMENTE CARGADAS QUE NO EXTIENDEN FACILMENTE.AN ELECTROPHOTOGRAPHIC TONER FOR LOADING NEGATIVES THAT CONSISTS OF A QUATERNARY AMMONIA SALT THAT HAS AN OXIACID ANION AS A LOAD CONTROL ASSISTANT IN COMBINATION WITH A LOAD CONTROL AGENT FOR NEGATIVE LOAD, A FIXING RESIN AND A DYE. THE QUATERNARY AMMONIA SALT USED AS AN ASSISTANT IS INCOMPATIBLE WITH THE FIXING RESIN BUT DISPERSIBLE THEREIN. TONER PROVIDES A SHARP DISTRIBUTION OF THE AMOUNT OF LOAD IN A WAY SO THAT THE FORMATION OF HIGHLY LOADED TONER PARTICLES THAT DO NOT CONTRIBUTE TO DEVELOPMENT AND POORLY LOADED TONER PARTICLES THAT DO NOT EXTEND.

ES91311032T 1990-11-28 1991-11-28 ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE. Expired - Lifetime ES2091302T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2328364A JP2609359B2 (en) 1990-11-28 1990-11-28 Electrophotographic toner for negative charging

Publications (1)

Publication Number Publication Date
ES2091302T3 true ES2091302T3 (en) 1996-11-01

Family

ID=18209425

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91311032T Expired - Lifetime ES2091302T3 (en) 1990-11-28 1991-11-28 ELECTROPHOTOGRAPHIC TONER FOR NEGATIVE CHARGE.

Country Status (4)

Country Link
EP (1) EP0488741B1 (en)
JP (1) JP2609359B2 (en)
DE (1) DE69120640T2 (en)
ES (1) ES2091302T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1093028A1 (en) * 1999-10-12 2001-04-18 Xeikon Nv Dry toner particles having controlled charging properties

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6169073A (en) * 1984-09-12 1986-04-09 Orient Kagaku Kogyo Kk Toner for developing electrostatic charge image
US4762763A (en) * 1985-12-19 1988-08-09 Ricoh Co., Ltd. Toner for developing electrostatic latent image
EP0284000B1 (en) * 1987-03-25 1992-09-02 Hodogaya Chemical Co., Ltd. Quaternary ammonium salt and electrophotographic toner
JP2710342B2 (en) * 1988-07-11 1998-02-10 株式会社リコー Toner for developing electrostatic images

Also Published As

Publication number Publication date
DE69120640D1 (en) 1996-08-08
EP0488741B1 (en) 1996-07-03
JPH04195164A (en) 1992-07-15
JP2609359B2 (en) 1997-05-14
EP0488741A1 (en) 1992-06-03
DE69120640T2 (en) 1997-02-27

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