JPS5730859A - Magnetic brush developing device - Google Patents

Magnetic brush developing device

Info

Publication number
JPS5730859A
JPS5730859A JP10426180A JP10426180A JPS5730859A JP S5730859 A JPS5730859 A JP S5730859A JP 10426180 A JP10426180 A JP 10426180A JP 10426180 A JP10426180 A JP 10426180A JP S5730859 A JPS5730859 A JP S5730859A
Authority
JP
Japan
Prior art keywords
roll
end parts
magnets
developing device
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
JP10426180A
Other languages
Japanese (ja)
Inventor
Toshio Uchida
Seiji Jo
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 JP10426180A priority Critical patent/JPS5730859A/en
Publication of JPS5730859A publication Critical patent/JPS5730859A/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
    • G03G15/0942—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush with means for preventing toner scattering from the magnetic brush, e.g. magnetic seals

Landscapes

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

Abstract

PURPOSE:To prevent a magnetic developer from spilling from both ends of a developing roll by providing sealing magnets to both end parts of the roll spacially from a rotating magnet. CONSTITUTION:A rotatable rotary magnet 3 is supported by supporting parts 12 via bearings 14 in a nonmagnetic sleeve 2 of a developing roll 1. Sealing magnets 15 are provided spacially from the magnet 3 in both end parts of areas where the roll 1 oppose to a latent image holding member 4. The spilling of a magnetic developer 5 from both end parts of the roll 1 is prevented by these magnets 15.
JP10426180A 1980-07-31 1980-07-31 Magnetic brush developing device Pending JPS5730859A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10426180A JPS5730859A (en) 1980-07-31 1980-07-31 Magnetic brush developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10426180A JPS5730859A (en) 1980-07-31 1980-07-31 Magnetic brush developing device

Publications (1)

Publication Number Publication Date
JPS5730859A true JPS5730859A (en) 1982-02-19

Family

ID=14375980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10426180A Pending JPS5730859A (en) 1980-07-31 1980-07-31 Magnetic brush developing device

Country Status (1)

Country Link
JP (1) JPS5730859A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177536A (en) * 1989-03-31 1993-01-05 Canon Kabushiki Kaisha Developing apparatus having a magnetic seal
US5267007A (en) * 1989-08-04 1993-11-30 Canon Kk Magnetic seal for preventing developer from leaking out of the longitudinal ends of a rotatable member
US5287148A (en) * 1990-07-10 1994-02-15 Canon Kabushiki Kaisha Magnetic seal for a developing apparatus
EP1239342A1 (en) 2001-03-01 2002-09-11 Canon Kabushiki Kaisha Developing apparatus provided with magnetic seal functions on both sides of a developing roller

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177536A (en) * 1989-03-31 1993-01-05 Canon Kabushiki Kaisha Developing apparatus having a magnetic seal
US5267007A (en) * 1989-08-04 1993-11-30 Canon Kk Magnetic seal for preventing developer from leaking out of the longitudinal ends of a rotatable member
US5287148A (en) * 1990-07-10 1994-02-15 Canon Kabushiki Kaisha Magnetic seal for a developing apparatus
EP1239342A1 (en) 2001-03-01 2002-09-11 Canon Kabushiki Kaisha Developing apparatus provided with magnetic seal functions on both sides of a developing roller
US6671473B2 (en) 2001-03-01 2003-12-30 Canon Kabushiki Kaisha Developing apparatus provided with seal functions on both sides of developing roller

Similar Documents

Publication Publication Date Title
GB1071697A (en) Magnetic roller for use in the development of latent electrostatic images
JPS5251949A (en) Magnet roller and developing apparatus for electrostatic latent image
JPS5730859A (en) Magnetic brush developing device
GB2001556A (en) Magnetic brush developing apparatus
JPS56120819A (en) Sealing device for bearing
JPS55113073A (en) Magnetic brush developing device
ES8600816A1 (en) Development apparatus for latent magnetic images.
JPS56137380A (en) Copying method
JPS5372629A (en) Permanent magnet roll used for development of electrophotography
GB2001873A (en) Magnetic brush developing device
JPS5614268A (en) Developing method
JPS53116161A (en) Electrophotographic copier for multicolor image
JPS55138768A (en) Developing device for magnetic toner
JPS55157768A (en) Magnetic latent image developing device
JPS5455442A (en) Magnetic brush developing device
JPS5258546A (en) Development device for electrophotography
JPS5584960A (en) Magnetic brush developing device
JPS5689762A (en) Developing device of electronic copying machine
JPS5359433A (en) Developing device for electrostatic latent image
JPS5511228A (en) One component magnetic toner developing device
JPS5446556A (en) Electrostatic latent image development
JPS5526536A (en) Magnetic brush developing machine
JPS552242A (en) Developing device
JPS55100575A (en) Magnetic brush developing roll
JPS5678858A (en) Magnet roll developing device