JPS5737355A - Developing method - Google Patents

Developing method

Info

Publication number
JPS5737355A
JPS5737355A JP11182280A JP11182280A JPS5737355A JP S5737355 A JPS5737355 A JP S5737355A JP 11182280 A JP11182280 A JP 11182280A JP 11182280 A JP11182280 A JP 11182280A JP S5737355 A JPS5737355 A JP S5737355A
Authority
JP
Japan
Prior art keywords
magnetic
carrier
omega
sigma
layers
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.)
Granted
Application number
JP11182280A
Other languages
Japanese (ja)
Other versions
JPS6412385B2 (en
Inventor
Kazuo Terao
Yasushi Ohashi
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP11182280A priority Critical patent/JPS5737355A/en
Publication of JPS5737355A publication Critical patent/JPS5737355A/en
Publication of JPS6412385B2 publication Critical patent/JPS6412385B2/ja
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
    • 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 Agents For Electrophotography (AREA)

Abstract

PURPOSE:To obtain a long-bristled magnetic brush easily controllable and to form a superior image, by holding a developing agent containing a low conductivity magnetic carrier and a high conductivity magnetic carrier larger than the former in size on a magnetic developing roller in layers. CONSTITUTION:A developer contains a magnetic carrier 1 made of methyl terpolymer-coated iron powder or the like, having 60mu diameter and about 10<-12>OMEGA/cm low conductivity in sigma, and a magnetic carrier 2, such as iron oxide powder, having 100mu diameter and about 10<-9>OMEGA/cm high conductivity in sigma, and a magnetic brush consisting of 3 layers of a layer A of the carrier 2, a mixed layer B of the carrier 2 and a magnetic toner, and the carrier 1 is formed in the order from a sleeve 4 side, using a magnetic developing roller, thus permitting the bristles of the magnetic brush to be lengthened to about 5mm., the carrier 1 to prevent leakage of developing bias voltage and to enhance an electrode effect, therefore, deterioration of image quality due to change of the resistance of the developer with the lapse of time to be improved, and an always excellent image to be obtained.
JP11182280A 1980-08-15 1980-08-15 Developing method Granted JPS5737355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11182280A JPS5737355A (en) 1980-08-15 1980-08-15 Developing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11182280A JPS5737355A (en) 1980-08-15 1980-08-15 Developing method

Publications (2)

Publication Number Publication Date
JPS5737355A true JPS5737355A (en) 1982-03-01
JPS6412385B2 JPS6412385B2 (en) 1989-02-28

Family

ID=14571022

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11182280A Granted JPS5737355A (en) 1980-08-15 1980-08-15 Developing method

Country Status (1)

Country Link
JP (1) JPS5737355A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5994763A (en) * 1982-11-22 1984-05-31 Mita Ind Co Ltd Two-component type developer for magnetic brush developing
JPS60131546A (en) * 1983-12-20 1985-07-13 Konishiroku Photo Ind Co Ltd Developing method
JPS62275280A (en) * 1986-02-10 1987-11-30 Hitachi Metals Ltd Developing method for electrostatically charged image
JPS63110478A (en) * 1986-10-29 1988-05-14 Hitachi Metals Ltd Developing method
JPH02130558A (en) * 1988-11-11 1990-05-18 Tomoegawa Paper Co Ltd Two-component developer for dry processing for electrophotography

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54115243A (en) * 1978-02-28 1979-09-07 Ricoh Co Ltd Image recording method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54115243A (en) * 1978-02-28 1979-09-07 Ricoh Co Ltd Image recording method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5994763A (en) * 1982-11-22 1984-05-31 Mita Ind Co Ltd Two-component type developer for magnetic brush developing
JPS60131546A (en) * 1983-12-20 1985-07-13 Konishiroku Photo Ind Co Ltd Developing method
JPS62275280A (en) * 1986-02-10 1987-11-30 Hitachi Metals Ltd Developing method for electrostatically charged image
JPS63110478A (en) * 1986-10-29 1988-05-14 Hitachi Metals Ltd Developing method
JPH02130558A (en) * 1988-11-11 1990-05-18 Tomoegawa Paper Co Ltd Two-component developer for dry processing for electrophotography

Also Published As

Publication number Publication date
JPS6412385B2 (en) 1989-02-28

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