GB1412350A - Electrographic development process - Google Patents

Electrographic development process

Info

Publication number
GB1412350A
GB1412350A GB1228173A GB1228173A GB1412350A GB 1412350 A GB1412350 A GB 1412350A GB 1228173 A GB1228173 A GB 1228173A GB 1228173 A GB1228173 A GB 1228173A GB 1412350 A GB1412350 A GB 1412350A
Authority
GB
United Kingdom
Prior art keywords
toner material
layer
shell
attraction
image areas
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
GB1228173A
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of GB1412350A publication Critical patent/GB1412350A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y15/00—Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/06—Developing
    • G03G13/08—Developing using a solid developer, e.g. powder developer
    • G03G13/09—Developing using a solid developer, e.g. powder developer using magnetic brush
    • 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
    • G03G15/0914—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush with a one-component toner

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Dry Development In Electrophotography (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Coloring (AREA)

Abstract

1412350 Electrographic development MINNESOTA MINING & Mfg CO 14 March 1973 [15 March 1972] 12281/73 Heading G2H A latent electrostatic image on a surface of a layer 3 of a recording element is developed with a toner material (13) which is both electronically conductive and magnetically attractable, the toner material (13) being applied by an electrically conductive support, e.g. a shell 11 of a development roller 8, to which it is held by magnetic attraction and which is at a direct current electrical potential of a magnitude and polarity such that the difference in electrical potential between support 11 and said surface results in a transient electrical transfer force on the toner material (13) greater than and opposed to the magnetic force of attraction in image areas and less than the magnetic force of attraction in non-image areas. Chain like groups 17 of the toner material (13), formed by the influence of the magnetic field, provide an electronically conductive path between the shell 11 and the said surface which path is maintained for a period sufficient to allow the transient transfer force to be produced and is then discontinued while the transfer force exists to selectively deposit the toner material (13) on the image areas of the said surface. The layer 3, which may be photoconductive or otherwise, is backed by a conductive layer 4. Both the layer 4 and the shell 11 are earthed.
GB1228173A 1972-03-15 1973-03-14 Electrographic development process Expired GB1412350A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23477872A 1972-03-15 1972-03-15

Publications (1)

Publication Number Publication Date
GB1412350A true GB1412350A (en) 1975-11-05

Family

ID=22882791

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1228173A Expired GB1412350A (en) 1972-03-15 1973-03-14 Electrographic development process

Country Status (21)

Country Link
JP (1) JPS562705B2 (en)
AR (1) AR201280A1 (en)
AT (1) ATA224973A (en)
AU (1) AU465201B2 (en)
BE (1) BE796762A (en)
BR (1) BR7301811D0 (en)
CA (1) CA1026167A (en)
CH (1) CH564215A5 (en)
DE (1) DE2313297A1 (en)
DK (1) DK137290B (en)
ES (1) ES412340A1 (en)
FI (1) FI59492C (en)
FR (1) FR2176022B1 (en)
GB (1) GB1412350A (en)
IL (1) IL41774A (en)
IT (1) IT979852B (en)
NL (1) NL7303034A (en)
NO (1) NO139365C (en)
PH (1) PH10361A (en)
SE (1) SE391816B (en)
ZA (1) ZA73911B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3014449A1 (en) * 1979-04-16 1980-10-30 Eastman Kodak Co ELECTROGRAPHIC COPYING PROCESS
EP0060703A1 (en) * 1981-03-13 1982-09-22 Xerox Corporation Electrostatographic developer composition and method

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5433534B2 (en) * 1973-05-01 1979-10-22
JPS5330493B2 (en) * 1973-10-04 1978-08-28
JPS5759546B2 (en) * 1974-01-31 1982-12-15 Katsuragawa Denki Kk
DE2424350C3 (en) * 1974-05-20 1984-10-04 Elfotec AG, Zumikon Electrophotographic imaging method using magnetic one-component toner
JPS5635558B2 (en) * 1975-02-07 1981-08-18
DE2620660A1 (en) * 1975-05-15 1976-12-02 Kip Kk DRY DEVELOPER PARTICLES FOR USE IN ELECTROPHOTOGRAPHY AND PROCESS FOR DEVELOPING ELECTROSTATIC IMAGES WITH SUCH PARTICLES
JPS5272236A (en) * 1975-12-12 1977-06-16 Hitachi Ltd Development means for electrostatic latent image
JPS5292730A (en) * 1976-04-23 1977-08-04 Hitachi Metals Ltd Electrostatic developing apparatus
JPS52135744A (en) * 1976-05-08 1977-11-14 Mitsubishi Electric Corp Electrostatic latent image developing device
JPS52140329A (en) * 1976-05-19 1977-11-22 Hitachi Metals Ltd Electrostatic developing method
JPS52140336A (en) * 1976-05-19 1977-11-22 Hitachi Metals Ltd Electrostatic image developing apparatus
JPS52140334A (en) * 1976-05-19 1977-11-22 Hitachi Metals Ltd Electrostatic image developing apparatus
JPS52140335A (en) * 1976-05-19 1977-11-22 Hitachi Metals Ltd Electrostatic image developing apparatus
JPS52141644A (en) * 1976-05-21 1977-11-26 Hitachi Metals Ltd Developing device for electrostatic image
JPS52143027A (en) * 1976-05-24 1977-11-29 Hitachi Metals Ltd Electrostatic image developing apparatus
JPS52143028A (en) * 1976-05-24 1977-11-29 Hitachi Metals Ltd Electrostatic image developing apparatus
US4121931A (en) * 1976-06-30 1978-10-24 Minnesota Mining And Manufacturing Company Electrographic development process
JPS5311033A (en) * 1976-07-17 1978-02-01 Mitsubishi Electric Corp Developing device for electrostatic latent image by means of magnetic toner
JPS5945148B2 (en) * 1976-10-06 1984-11-05 オリンパス光学工業株式会社 Electrostatic latent image development method
JPS5354023A (en) * 1976-10-27 1978-05-17 Mita Industrial Co Ltd Improvement in electric recording method
JPS53112740A (en) * 1977-03-14 1978-10-02 Hitachi Metals Ltd Reversal development system
JPS53117435A (en) * 1977-03-23 1978-10-13 Mitsubishi Electric Corp Developing device for electrostatic latent image
JPS53129639A (en) * 1977-04-19 1978-11-11 Mita Industrial Co Ltd Method of and device for electrostatic copying
GB2006054B (en) * 1977-09-10 1982-12-08 Canon Kk Developing apparatus for electrostatic image
CY1243A (en) * 1978-05-25 1984-06-29 Fbc Ltd Acaricidal and ovicidal heterocyclic compounds and compositions and process for their preparation
DD137242B1 (en) * 1978-06-16 1980-10-29 Dietrich Demus NEMATIC CRYSTALLINE-FLUID MIXTURES
US4358589A (en) * 1979-02-02 1982-11-09 Veb Werk Fur Fernsehelektronik Im Veb Kombinat Mikroelektronik Nematic liquid crystal compounds
EP0029657A3 (en) * 1979-11-16 1981-08-26 Fbc Limited Pesticidal tetrazines, their use and compositions, processes for their preparation and preparation intermediates
JPS56161564A (en) * 1980-05-16 1981-12-11 Fuji Xerox Co Ltd Normal and reversal copying method
JPS575065A (en) * 1980-06-11 1982-01-11 Hitachi Metals Ltd Developing device
US4544618A (en) * 1982-01-18 1985-10-01 Xerox Corporation Development process utilizing conductive materials
JPS6150972U (en) * 1985-08-07 1986-04-05
JPH06175393A (en) * 1992-12-04 1994-06-24 Fuji Xerox Co Ltd Conductive toner, its production and image forming method
KR20020045879A (en) * 2000-12-11 2002-06-20 구자홍 A drawer type micro wave oven

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846333A (en) * 1955-11-01 1958-08-05 Haloid Xerox Inc Method of developing electrostatic images
BE652391A (en) * 1964-08-28 1964-12-16
US3563734A (en) * 1964-10-14 1971-02-16 Minnesota Mining & Mfg Electrographic process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3014449A1 (en) * 1979-04-16 1980-10-30 Eastman Kodak Co ELECTROGRAPHIC COPYING PROCESS
EP0060703A1 (en) * 1981-03-13 1982-09-22 Xerox Corporation Electrostatographic developer composition and method

Also Published As

Publication number Publication date
NO139365C (en) 1979-02-21
CH564215A5 (en) 1975-07-15
FI59492B (en) 1981-04-30
ZA73911B (en) 1973-11-28
JPS494532A (en) 1974-01-16
DK137290B (en) 1978-02-13
FR2176022B1 (en) 1976-11-05
DE2313297A1 (en) 1973-09-27
SE391816B (en) 1977-02-28
FI59492C (en) 1981-08-10
DK137290C (en) 1978-07-17
AR201280A1 (en) 1975-02-28
IT979852B (en) 1974-09-30
ATA224973A (en) 1976-03-15
AU5327973A (en) 1974-09-19
NO139365B (en) 1978-11-13
AU465201B2 (en) 1975-09-18
BR7301811D0 (en) 1974-07-25
NL7303034A (en) 1973-09-18
IL41774A0 (en) 1973-05-31
IL41774A (en) 1975-07-28
CA1026167A (en) 1978-02-14
PH10361A (en) 1977-01-18
JPS562705B2 (en) 1981-01-21
ES412340A1 (en) 1976-01-01
BE796762A (en) 1973-09-14
FR2176022A1 (en) 1973-10-26

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414A Case decided by the comptroller ** specification amended (sect. 14/1949)
414D Application made to the patents court (sect. 14/1949)
414M Application made to the patents court ** appeal dismissed (sect. 14/1949)
PS Patent sealed [section 19, patents act 1949]
SP Amendment (slips) printed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee