JPS57191673A - Magnetic brush type cleaning device - Google Patents

Magnetic brush type cleaning device

Info

Publication number
JPS57191673A
JPS57191673A JP7767681A JP7767681A JPS57191673A JP S57191673 A JPS57191673 A JP S57191673A JP 7767681 A JP7767681 A JP 7767681A JP 7767681 A JP7767681 A JP 7767681A JP S57191673 A JPS57191673 A JP S57191673A
Authority
JP
Japan
Prior art keywords
particles
magnet
magnets
toner
sleeve
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
JP7767681A
Other languages
Japanese (ja)
Other versions
JPH0160151B2 (en
Inventor
Ikuo Mori
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 JP7767681A priority Critical patent/JPS57191673A/en
Publication of JPS57191673A publication Critical patent/JPS57191673A/en
Publication of JPH0160151B2 publication Critical patent/JPH0160151B2/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
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
    • G03G21/0047—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using electrostatic or magnetic means; Details thereof, e.g. magnetic pole arrangement of magnetic devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To eliminate the evil effect on a copy, by setting a magnet which generates small and large magnetic fields at the specific positions to form a specific magnetic pattern and accordingly increasing the eliminating efficiency of the toner particles as well as minimizing the scattering of the residual toner. CONSTITUTION:The fixed magnets 20-26 are distributed radially within a rotary sleeve 4 so as to be adjacent to the inner surface of the sleeve 4. Thus the magnetic carrier particles 3 are formed into a brush-shape. As a result, a strong magnetic field is generated from a magnet 20 at the position closest to a cleaning region 11, a magnet 21 at the position 13 where the toner particles 2 and the carrier particles 3 are supplied and a magnet 22 at the position near a toner particle removing roll 9 respectively. Other magnets 23-26 generate the the weak magnetic fields. The magnets 20-26 are distributed with the prescribed angles theta1-theta7 respectively to form a specific magnetic pattern. The particles 2 which are absorbed to the particles 3 at the region 11 are held on the surface of the sleeve 4. This holding force does not exist at all in an exfoliation region 14 where the same magntic poles are set adjacent to each other. As a result, the particles 2 drops into a housing by gravity.
JP7767681A 1981-05-22 1981-05-22 Magnetic brush type cleaning device Granted JPS57191673A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7767681A JPS57191673A (en) 1981-05-22 1981-05-22 Magnetic brush type cleaning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7767681A JPS57191673A (en) 1981-05-22 1981-05-22 Magnetic brush type cleaning device

Publications (2)

Publication Number Publication Date
JPS57191673A true JPS57191673A (en) 1982-11-25
JPH0160151B2 JPH0160151B2 (en) 1989-12-21

Family

ID=13640481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7767681A Granted JPS57191673A (en) 1981-05-22 1981-05-22 Magnetic brush type cleaning device

Country Status (1)

Country Link
JP (1) JPS57191673A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03152344A (en) * 1989-11-07 1991-06-28 Sanyo Electric Co Ltd Electrical foot warmer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5075044A (en) * 1973-11-01 1975-06-20
JPS52116244A (en) * 1976-03-25 1977-09-29 Ricoh Co Ltd Both cleaning and developing means for electro-photographic copier
JPS54147044A (en) * 1978-05-11 1979-11-16 Ricoh Co Ltd Magnetic brush developing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5075044A (en) * 1973-11-01 1975-06-20
JPS52116244A (en) * 1976-03-25 1977-09-29 Ricoh Co Ltd Both cleaning and developing means for electro-photographic copier
JPS54147044A (en) * 1978-05-11 1979-11-16 Ricoh Co Ltd Magnetic brush developing device

Also Published As

Publication number Publication date
JPH0160151B2 (en) 1989-12-21

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