JPS572064A - Developing and transfer method in electrophotography system - Google Patents

Developing and transfer method in electrophotography system

Info

Publication number
JPS572064A
JPS572064A JP7579680A JP7579680A JPS572064A JP S572064 A JPS572064 A JP S572064A JP 7579680 A JP7579680 A JP 7579680A JP 7579680 A JP7579680 A JP 7579680A JP S572064 A JPS572064 A JP S572064A
Authority
JP
Japan
Prior art keywords
toner
resistance
dispersion
iron powder
case
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.)
Pending
Application number
JP7579680A
Other languages
Japanese (ja)
Inventor
Hiroharu Suzuki
Shigekazu Enoki
Toshio Kaneko
Hajime Koyama
Hidekazu Akutsu
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
Priority to JP7579680A priority Critical patent/JPS572064A/en
Publication of JPS572064A publication Critical patent/JPS572064A/en
Pending 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
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/06—Developing
    • G03G13/08—Developing using a solid developer, e.g. powder developer
    • G03G13/09—Developing using a solid developer, e.g. powder developer using magnetic brush

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Developing For Electrophotography (AREA)

Abstract

PURPOSE:To obtain a copied picture having a high quality by use of ordinary paper, by using a magnetic toner by which dispersion of iron powder contained in toner particles is not isotropic and also electric resistance is greatly varied depending on a direction. CONSTITUTION:In case of using a magnetic toner T by which the particle size of iron powder FO is comparatively large and its dispersion is not isotropic, the electric resistance becomes small in the direction of B and large in the direction of A, due to deviation of dispersion of the iron powder FO. Therefore, in case of charging, when voltage is applied to a sleeve 22 and a doctor 24, a conductive path having low resistance is formed, charge passes through this conductive path, is injected into each particle easily, and stabilized charging is executed. In case of development, electric force by an electrostatic latent image operates on a toner, unified directional properties of a toner on the sleeve 22 are deteriorated. Accordingly, when a visible image is transferred, a direction which is large in resistance of toner particles is applied. That is to say, this toner operates as that of low resistance for development, and that of high resistance for transfer. In this way, even when ordinary paper is used, a copied image having a high quality can be obtained.
JP7579680A 1980-06-05 1980-06-05 Developing and transfer method in electrophotography system Pending JPS572064A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7579680A JPS572064A (en) 1980-06-05 1980-06-05 Developing and transfer method in electrophotography system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7579680A JPS572064A (en) 1980-06-05 1980-06-05 Developing and transfer method in electrophotography system

Publications (1)

Publication Number Publication Date
JPS572064A true JPS572064A (en) 1982-01-07

Family

ID=13586518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7579680A Pending JPS572064A (en) 1980-06-05 1980-06-05 Developing and transfer method in electrophotography system

Country Status (1)

Country Link
JP (1) JPS572064A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609549U (en) * 1983-06-30 1985-01-23 株式会社　朋来鉄工所 Screen structure in rotary shear crusher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609549U (en) * 1983-06-30 1985-01-23 株式会社　朋来鉄工所 Screen structure in rotary shear crusher

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