GB1187453A - Magnetic Developing Brush - Google Patents

Magnetic Developing Brush

Info

Publication number
GB1187453A
GB1187453A GB25401/67A GB2540167A GB1187453A GB 1187453 A GB1187453 A GB 1187453A GB 25401/67 A GB25401/67 A GB 25401/67A GB 2540167 A GB2540167 A GB 2540167A GB 1187453 A GB1187453 A GB 1187453A
Authority
GB
United Kingdom
Prior art keywords
magnetic
cylinder
magnet
june
rotatable
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.)
Expired
Application number
GB25401/67A
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Publication of GB1187453A publication Critical patent/GB1187453A/en
Expired 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
    • 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

Landscapes

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

Abstract

1,187,453. Magnetic holding devices. KONISHIKOKU PHOTO INDUSTRY CO. Ltd. 1 June, 1967 [6 June, 1966], No. 25401/67. Heading H1P. [Also in Division G2] A magnetic brush developing apparatus has permanent magnets 1, 5, 6, 7 and 8 arranged on a stationary arbor 4 of non-magnetic material within a non-magnetic rotatable cylinder 2. The cylinder 2 rotates in a container for a mixture of toner and iron particles. One magnet 1 has another magnet arranged perpendicular thereto at each lateral side, thereby increasing flux density to produce a more effective magnetic brush 12. In a modification, Fig. 5 (not shown), the cylinder 2 is dispensed with, the arbor (4) itself being rotatable and carrying a plurality of magnet assemblies.
GB25401/67A 1966-06-06 1967-06-01 Magnetic Developing Brush Expired GB1187453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3621566 1966-06-06

Publications (1)

Publication Number Publication Date
GB1187453A true GB1187453A (en) 1970-04-08

Family

ID=12463519

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25401/67A Expired GB1187453A (en) 1966-06-06 1967-06-01 Magnetic Developing Brush

Country Status (3)

Country Link
US (1) US3402698A (en)
DE (2) DE1572348B2 (en)
GB (1) GB1187453A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6102841A (en) * 1997-06-30 2000-08-15 Xerox Corporation Magnetic sleeve for non-interactive agitated magnetic brush development

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE759075R (en) * 1969-05-30 1971-05-18 Int Standard Electric Corp DEVICE AND METHOD FOR TREATING MAGNETIC POWDER (
US3575139A (en) * 1969-06-04 1971-04-20 Xerox Corp Electrostatic magnetic developer unit gating apparatus
US3643629A (en) * 1969-10-20 1972-02-22 Minnesota Mining & Mfg Magnetic powder applicator
BE757698A (en) * 1969-10-20 1971-04-19 Xerox Corp DEVELOPMENT APPARATUS
US3626898A (en) * 1970-02-06 1971-12-14 Addressograph Multigraph High-speed magnetic brush developer apparatus
JPS5119884Y2 (en) * 1971-05-21 1976-05-25
US3828730A (en) * 1971-05-21 1974-08-13 Hitachi Metals Ltd Electrostatic record developing apparatus
GB1359381A (en) * 1971-05-21 1974-07-10 Hitachi Metals Ltd Electrostatic record developing apparatus
CH542466A (en) * 1971-08-16 1973-09-30 Zellweger Uster Ag Apparatus for developing latent electrostatic charge images
CH549234A (en) * 1972-12-28 1974-05-15 Wifo Forschungsinst Ag MAGNETIC BRUSH FOR DEVELOPING ELECTROSTATIC IMAGES WITH DEVELOPER POWDER.
JPS5426172B2 (en) * 1973-05-23 1979-09-03
US3939801A (en) * 1973-09-10 1976-02-24 Minolta Camera Kabushiki Kaisha Magnetic brush developing apparatus
GB1485148A (en) * 1973-12-17 1977-09-08 Oce Van Der Grinten Nv Apparatus for the development of an electrostatic charge image on a support
US3952701A (en) * 1974-11-05 1976-04-27 Hitachi Metals, Ltd. Electrostatic developing apparatus
SU626710A3 (en) * 1975-02-24 1978-09-30 Ксерокс Корпорейшн (Фирма) Apparatus for producing electrographic images with magnetic brush
US3945343A (en) * 1975-03-24 1976-03-23 General Electric Company Magnetic brush for use in magnetic printing
US4048958A (en) * 1976-03-08 1977-09-20 Fuji Xerox Co., Ltd. Magnetic brush developing device
US4098228A (en) * 1976-11-22 1978-07-04 Xerox Corporation High speed magnetic brush development system
US4167718A (en) * 1977-10-03 1979-09-11 Hitachi Metals, Ltd. Dies set for magnetizing outer surface of magnetic column
US4166263A (en) * 1977-10-03 1979-08-28 Hitachi Metals, Ltd. Magnetic core assembly for magnetizing columnar permanent magnet for use in electrostatic developing apparatus
US4169998A (en) * 1977-10-03 1979-10-02 Hitachi Metals, Ltd. Iron core assembly for magnetizing columnar permanent magnets for use in electrostatic developing apparatus
US4266328A (en) * 1977-10-05 1981-05-12 Hitachi Metals, Ltd. Developing roll for use in electrostatic developing apparatus employing magnetic particles
US4168481A (en) * 1977-10-05 1979-09-18 Hitachi Metals, Ltd. Core assembly for magnetizing columnar permanent magnet for use in an electrostatic developing apparatus
CA1135046A (en) * 1978-01-11 1982-11-09 Kouji Suzuki Magnetic brush development apparatus
DE2809353A1 (en) * 1978-03-04 1979-09-13 Olympia Werke Ag DEVELOPMENT DEVICE FOR AN ELECTROPHOTOGRAPHIC COPIER
JPS602664B2 (en) * 1978-04-28 1985-01-23 コニカ株式会社 Electrostatic latent image developing device
JPS5565977A (en) * 1978-11-10 1980-05-17 Canon Inc Magnetic powder conveyor
JPS5681868A (en) * 1979-12-08 1981-07-04 Olympus Optical Co Ltd Magnet roll developing device
JPS58182210A (en) * 1982-04-20 1983-10-25 Kanegafuchi Chem Ind Co Ltd Magnetic circuit device
JPH06118797A (en) * 1992-10-07 1994-04-28 Hitachi Metals Ltd Magnet roll and its production

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3098765A (en) * 1959-03-16 1963-07-23 Robertson Photo Mechanix Inc Xerographic brush
US3152924A (en) * 1961-05-24 1964-10-13 Robertson Photo Mechanix Inc Xerographic brush
US3145122A (en) * 1962-08-13 1964-08-18 Addressograph Multigraph Apparatus for applying developer powder to photo-conductive insulating material
DE1218287B (en) * 1962-12-21 1966-06-02 Zindler Lumoprint Kg Apparatus for developing electrostatic images
US3318284A (en) * 1964-01-30 1967-05-09 Hitachi Ltd Apparatus for developing electrostatic images of records

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6102841A (en) * 1997-06-30 2000-08-15 Xerox Corporation Magnetic sleeve for non-interactive agitated magnetic brush development

Also Published As

Publication number Publication date
DE1572348B2 (en) 1973-08-02
DE1572348A1 (en) 1970-03-12
US3402698A (en) 1968-09-24
DE1572348C3 (en) 1974-02-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee