IE32786B1 - Apparatus and method for developing an electrostatic latent image - Google Patents

Apparatus and method for developing an electrostatic latent image

Info

Publication number
IE32786B1
IE32786B1 IE280/69A IE28069A IE32786B1 IE 32786 B1 IE32786 B1 IE 32786B1 IE 280/69 A IE280/69 A IE 280/69A IE 28069 A IE28069 A IE 28069A IE 32786 B1 IE32786 B1 IE 32786B1
Authority
IE
Ireland
Prior art keywords
magnetic
alloys
coating
roll
magnetic particles
Prior art date
Application number
IE280/69A
Other versions
IE32786L (en
Original Assignee
Rank Xerox 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 Rank Xerox Ltd filed Critical Rank Xerox Ltd
Publication of IE32786L publication Critical patent/IE32786L/en
Publication of IE32786B1 publication Critical patent/IE32786B1/en

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Coating Apparatus (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

1,263,566. Electro-graphic developing apparatus. RANK XEROX Ltd. April 1, 1969 [April 22, 1968], No.16990/69. Heading G2H. A magnetic roll 57 picks up a coating of developer from a trough 51; the coating being trimmed at 71, charged at 73, smoothed at 75 and then thrown into contact with an image bearing drum (12) Fig.4 (not shown) by oscillating ribbons 80. Ribbons 80 are oscillated by means of a magnet 85 rotating within roll 57. Roll 57 comprises ring magnets 59 spaced by ring insulators 61 and has a non- magnetic cover 65. The developer comprises electro-scopic resinous pigment particles attached to magnetic particles. The magnetic particles may be Fe or its alloys or oxides, Co or its alloys, or magnetic alloys of Al, Ag, Cu, Mg, Mn. A method of coating the magnetic particles with the resin is described comprising crushing, mixing, cooling and dividing. [GB1263566A]
IE280/69A 1968-04-22 1969-03-04 Apparatus and method for developing an electrostatic latent image IE32786B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72304168A 1968-04-22 1968-04-22

Publications (2)

Publication Number Publication Date
IE32786L IE32786L (en) 1969-10-22
IE32786B1 true IE32786B1 (en) 1973-11-28

Family

ID=24904566

Family Applications (1)

Application Number Title Priority Date Filing Date
IE280/69A IE32786B1 (en) 1968-04-22 1969-03-04 Apparatus and method for developing an electrostatic latent image

Country Status (20)

Country Link
US (1) US3552355A (en)
JP (1) JPS5344826B1 (en)
AT (1) AT300575B (en)
BE (1) BE730371A (en)
BR (1) BR6907459D0 (en)
CH (1) CH499140A (en)
CS (1) CS161850B2 (en)
DE (1) DE1913696A1 (en)
DK (1) DK129880B (en)
ES (1) ES365439A1 (en)
FR (1) FR2006640A1 (en)
GB (1) GB1263566A (en)
IE (1) IE32786B1 (en)
IL (1) IL31757A (en)
LU (1) LU58295A1 (en)
NO (1) NO128037B (en)
PL (1) PL79926B1 (en)
RO (1) RO61947A (en)
SE (1) SE341530B (en)
SU (1) SU383338A3 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882821A (en) * 1969-03-08 1975-05-13 Canon Kk Developing device for electrophotography
BE759074A (en) * 1969-05-29 1971-05-18 Int Standard Electric Corp DEVICE AND METHOD FOR HANDLING MAGNETIC POWDER
US3866575A (en) * 1971-09-06 1975-02-18 Canon Kk Magnet roll developing device
NL168347C (en) * 1972-03-16 1982-03-16 Oce Van Der Grinten Nv METHOD FOR MANUFACTURING VISIBLE IMAGES BY DEVELOPING AN ELECTROPHOTOGRAPHIC CHARACTERISTIC PATTERN USED WITH A TONER POWDER CONTAINING COLORED OR BLACK PARTICULAR PARTICLES OF A THERMOPLASTIC RESIN
JPS576589B2 (en) * 1973-06-08 1982-02-05
JPS5045639A (en) * 1973-08-27 1975-04-23
JPS5738901B2 (en) * 1973-12-26 1982-08-18
US4086873A (en) * 1974-07-09 1978-05-02 Konishiroku Photo Industry Co., Ltd. Electrophotographic developing device incorporating a developing electrode having an insulation layer on its surface
JPS5116926A (en) * 1974-08-01 1976-02-10 Mita Industrial Co Ltd Seidenkasenzono genzohoho
US4126100A (en) * 1974-08-01 1978-11-21 Mita Industrial Company Ltd. Apparatus for causing a developer powder to make an irregular motion in a developing zone
NL7512356A (en) * 1975-10-22 1977-04-26 Oce Van Der Grinten Nv MAGNET ROLL.
US4121931A (en) * 1976-06-30 1978-10-24 Minnesota Mining And Manufacturing Company Electrographic development process
JPS572996Y2 (en) * 1976-07-22 1982-01-19
JPS604459B2 (en) * 1976-11-08 1985-02-04 コニカ株式会社 Method for producing electrostatic image developer
US4122209A (en) * 1977-04-18 1978-10-24 E. I. Du Pont De Nemours And Company Magnetic image decorator
US4185130A (en) * 1977-04-18 1980-01-22 E. I. Du Pont De Nemours And Company Magnetic image decorator
FR2408462A1 (en) * 1977-10-24 1979-06-08 Cii Honeywell Bull DEVICE FOR APPLYING SOLID PARTICLES TO THE RECORDING MEDIA OF A NON-IMPACT PRINTER
JPS54154332A (en) * 1978-05-25 1979-12-05 Toshiba Corp Smoke layer forming device of magnetic powder
JPS55113074A (en) * 1979-02-24 1980-09-01 Konishiroku Photo Ind Co Ltd Developing device for electrophotographic copier
US4240374A (en) * 1979-05-29 1980-12-23 E. I. Du Pont De Nemours And Company Magnetic image decorator having rotating cylinders and knife blades associated therewith
JPS5511299A (en) * 1979-07-09 1980-01-26 Konishiroku Photo Ind Co Ltd Image forming method
US4292924A (en) * 1979-10-03 1981-10-06 Xerox Corporation Magnetic brush apparatus
JPS6235096Y2 (en) * 1980-05-26 1987-09-07
US4318607A (en) * 1980-07-14 1982-03-09 Xerox Corporation Magnet for a development system
US4324820A (en) * 1980-07-18 1982-04-13 St. Regis Paper Company Method and apparatus for coating a paper web
DE3109695A1 (en) * 1981-03-13 1982-09-23 Olympia Werke Ag, 2940 Wilhelmshaven MAGNETIC BRUSH DEVELOPMENT DEVICE FOR ELECTROSTATIC LOADING IMAGES ON RECORD CARRIERS
JPS61281251A (en) * 1986-05-16 1986-12-11 Konishiroku Photo Ind Co Ltd One component type insulating magnetic toner and electrostatic charging method for its magnetic toner

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786439A (en) * 1953-06-30 1957-03-26 Rca Corp Electrophotographic developing apparatus
US2822779A (en) * 1956-09-24 1958-02-11 Century Geophysical Corp Developer for electrostatic photography
US3015305A (en) * 1958-05-23 1962-01-02 Xerox Corp Development of electrostatic images
US3098765A (en) * 1959-03-16 1963-07-23 Robertson Photo Mechanix Inc Xerographic brush
US3203395A (en) * 1963-06-14 1965-08-31 Addressograph Multigraph Apparatus for developing electrostatic images
DE1472993B2 (en) * 1963-12-18 1972-02-17 Kalle Ag, 6202 Wiesbaden-Biebrich MAGNETIC ROLLER FOR ELECTROPHOTOGRAPHIC PURPOSES
US3318284A (en) * 1964-01-30 1967-05-09 Hitachi Ltd Apparatus for developing electrostatic images of records
US3429741A (en) * 1965-06-11 1969-02-25 Eastman Kodak Co Method of coating using a bead coater
US3464383A (en) * 1966-01-14 1969-09-02 Wilhelm Knechtel Powder dispensing cylinder for an electrostatic powder fixing device
US3358594A (en) * 1966-01-17 1967-12-19 American Can Co Electrostatic printing with a magnetic brush feed

Also Published As

Publication number Publication date
IL31757A (en) 1973-01-30
DE1913696A1 (en) 1969-11-13
CH499140A (en) 1970-11-15
SU383338A3 (en) 1973-05-25
SE341530B (en) 1971-12-27
DK129880B (en) 1974-11-25
CS161850B2 (en) 1975-06-10
DK129880C (en) 1975-05-12
IL31757A0 (en) 1969-05-28
US3552355A (en) 1971-01-05
PL79926B1 (en) 1975-08-30
RO61947A (en) 1977-08-15
FR2006640A1 (en) 1970-01-02
GB1263566A (en) 1972-02-09
AT300575B (en) 1972-07-25
NO128037B (en) 1973-09-17
BE730371A (en) 1969-09-24
BR6907459D0 (en) 1973-01-18
LU58295A1 (en) 1969-10-28
IE32786L (en) 1969-10-22
JPS5344826B1 (en) 1978-12-01
ES365439A1 (en) 1971-03-16

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