JPS5526526A - Magnet roll - Google Patents

Magnet roll

Info

Publication number
JPS5526526A
JPS5526526A JP9934678A JP9934678A JPS5526526A JP S5526526 A JPS5526526 A JP S5526526A JP 9934678 A JP9934678 A JP 9934678A JP 9934678 A JP9934678 A JP 9934678A JP S5526526 A JPS5526526 A JP S5526526A
Authority
JP
Japan
Prior art keywords
magnetic
circuits
magnets
repulsion
magnetic brush
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
JP9934678A
Other languages
Japanese (ja)
Inventor
Keitaro Yamashita
Masamichi Abe
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP9934678A priority Critical patent/JPS5526526A/en
Publication of JPS5526526A publication Critical patent/JPS5526526A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To enable the wide, high and soft magnetic brush effective for development to be obtained by letting the magnetic circuits of magnetic poles of magnet rolls for copying machines assume repulsion circuits.
CONSTITUTION: Magnets 1 are secured to the shaft 2 which is supported by way of bearings 6, 6 in a circular cylindrical sleeve 3 of non-magnetic material to constitute the magnet roll. At this time, if the magnets 1 are let to form repulsion circuits of the same pole to itself, the magnetic fluxes are mutually respulsed and reach far and therefore the magnetic brush becomes high and soft. In addition, the width of the magnetic brush may be set freely by adjusting the distance W between the magnets. The decrease in conveying characteristic by the repulsion circuits may be prevented by applying surface perparation such as shot balsting, knurling, V-grooving, etc. on the outside circumferential surface of the sleeve 3.
COPYRIGHT: (C)1980,JPO&Japio
JP9934678A 1978-08-15 1978-08-15 Magnet roll Pending JPS5526526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9934678A JPS5526526A (en) 1978-08-15 1978-08-15 Magnet roll

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9934678A JPS5526526A (en) 1978-08-15 1978-08-15 Magnet roll

Publications (1)

Publication Number Publication Date
JPS5526526A true JPS5526526A (en) 1980-02-26

Family

ID=14245043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9934678A Pending JPS5526526A (en) 1978-08-15 1978-08-15 Magnet roll

Country Status (1)

Country Link
JP (1) JPS5526526A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62129563U (en) * 1986-02-10 1987-08-15
JPS6383752A (en) * 1986-09-29 1988-04-14 Matsushita Electric Ind Co Ltd Developing device
JPS6383759A (en) * 1986-09-29 1988-04-14 Matsushita Electric Ind Co Ltd Developing device
JPS63309981A (en) * 1987-06-11 1988-12-19 Konica Corp Developing device
JPS63309980A (en) * 1987-06-11 1988-12-19 Konica Corp Developing device
US6178306B1 (en) 1997-11-10 2001-01-23 Canon Kabushiki Kaisha Developer bearing body electroless plated on blasted surface using spherical particles, production method therefor and developing apparatus using the same
US6201942B1 (en) 1999-03-31 2001-03-13 Canon Kabushiki Kaisha Developer-carrying member, and developing device and image forming apparatus including the member
US6795675B2 (en) 2001-02-26 2004-09-21 Canon Kabushiki Kaisha Developing-carrying member, and developing apparatus and image forming apparatus including the member
US6873816B2 (en) 2001-08-20 2005-03-29 Canon Kabushiki Kaisha Developing assembly, process cartridge and image-forming method
US8086152B2 (en) 2007-05-30 2011-12-27 Seiko Epson Corporation Developing device, image forming apparatus, image forming system, developing method, and toner bearing member
US8086150B2 (en) 2005-11-02 2011-12-27 Seiko Epson Corporation Toner particle-bearing roller with projection portion, developing device having such toner particle-bearing roller, and image forming apparatus having such developing device
US8192339B2 (en) 2006-11-07 2012-06-05 Seiko Epson Corporation Developing roller, manufacturing method thereof, developing apparatus and image forming apparatus

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62129563U (en) * 1986-02-10 1987-08-15
JPS6383752A (en) * 1986-09-29 1988-04-14 Matsushita Electric Ind Co Ltd Developing device
JPS6383759A (en) * 1986-09-29 1988-04-14 Matsushita Electric Ind Co Ltd Developing device
JPS63309981A (en) * 1987-06-11 1988-12-19 Konica Corp Developing device
JPS63309980A (en) * 1987-06-11 1988-12-19 Konica Corp Developing device
US6178306B1 (en) 1997-11-10 2001-01-23 Canon Kabushiki Kaisha Developer bearing body electroless plated on blasted surface using spherical particles, production method therefor and developing apparatus using the same
US6201942B1 (en) 1999-03-31 2001-03-13 Canon Kabushiki Kaisha Developer-carrying member, and developing device and image forming apparatus including the member
US6795675B2 (en) 2001-02-26 2004-09-21 Canon Kabushiki Kaisha Developing-carrying member, and developing apparatus and image forming apparatus including the member
US6873816B2 (en) 2001-08-20 2005-03-29 Canon Kabushiki Kaisha Developing assembly, process cartridge and image-forming method
US8086150B2 (en) 2005-11-02 2011-12-27 Seiko Epson Corporation Toner particle-bearing roller with projection portion, developing device having such toner particle-bearing roller, and image forming apparatus having such developing device
US8401443B2 (en) 2005-11-02 2013-03-19 Seiko Epson Corporation Toner-particle bearing roller, developing device, and image forming apparatus
US8192339B2 (en) 2006-11-07 2012-06-05 Seiko Epson Corporation Developing roller, manufacturing method thereof, developing apparatus and image forming apparatus
US8086152B2 (en) 2007-05-30 2011-12-27 Seiko Epson Corporation Developing device, image forming apparatus, image forming system, developing method, and toner bearing member

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