JPS57114164A - Magnetic brush developing device - Google Patents

Magnetic brush developing device

Info

Publication number
JPS57114164A
JPS57114164A JP101381A JP101381A JPS57114164A JP S57114164 A JPS57114164 A JP S57114164A JP 101381 A JP101381 A JP 101381A JP 101381 A JP101381 A JP 101381A JP S57114164 A JPS57114164 A JP S57114164A
Authority
JP
Japan
Prior art keywords
width
thickness
development
uneven
developing device
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
JP101381A
Other languages
Japanese (ja)
Inventor
Shigekazu Enoki
Hajime Koyama
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 JP101381A priority Critical patent/JPS57114164A/en
Publication of JPS57114164A publication Critical patent/JPS57114164A/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
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • G03G15/0921—Details concerning the magnetic brush roller structure, e.g. magnet configuration

Abstract

PURPOSE:To always ensure an even width of the ear cutting part regardless of the thickness of the attached developer and to prevent an uneven development, by giving a notched part to a magnet set at the developing position and then attaching a magnetic plate to the notched part. CONSTITUTION:A magnet 3 having a notched part 2 is set at the developing position of a magnetic brush developing device, and an ear cutting part 6 is provided between developers 4 and 5 to increase the width of a developing region. In such method of development, the width (w) of the part 6 becomes uneven to cause an uneven development in case the thickness of attachment of the developers 4 and 5 is small. In this connection, a magnetic plate 9 of SPCC having 2mm. thickness is provided at the part 2. As a result, the variation is secured for the distance between peaks for the magnetic field distribution, and accordingly the width (w) is made even at the part 6 to obtain a high-quality image free from any uneven development.
JP101381A 1981-01-07 1981-01-07 Magnetic brush developing device Pending JPS57114164A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP101381A JPS57114164A (en) 1981-01-07 1981-01-07 Magnetic brush developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP101381A JPS57114164A (en) 1981-01-07 1981-01-07 Magnetic brush developing device

Publications (1)

Publication Number Publication Date
JPS57114164A true JPS57114164A (en) 1982-07-15

Family

ID=11489686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP101381A Pending JPS57114164A (en) 1981-01-07 1981-01-07 Magnetic brush developing device

Country Status (1)

Country Link
JP (1) JPS57114164A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62108272A (en) * 1985-11-05 1987-05-19 Kanegafuchi Chem Ind Co Ltd Magnet roller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62108272A (en) * 1985-11-05 1987-05-19 Kanegafuchi Chem Ind Co Ltd Magnet roller

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