GB940577A - A process for the production of electrophotographic images - Google Patents

A process for the production of electrophotographic images

Info

Publication number
GB940577A
GB940577A GB38021/60A GB3802160A GB940577A GB 940577 A GB940577 A GB 940577A GB 38021/60 A GB38021/60 A GB 38021/60A GB 3802160 A GB3802160 A GB 3802160A GB 940577 A GB940577 A GB 940577A
Authority
GB
United Kingdom
Prior art keywords
layer
toner
electrical
photoconductive layer
nov
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
GB38021/60A
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.)
Agfa Gevaert NV
Original Assignee
Agfa AG
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 Agfa AG filed Critical Agfa AG
Publication of GB940577A publication Critical patent/GB940577A/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
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09733—Organic compounds
    • G03G9/09775—Organic compounds containing atoms other than carbon, hydrogen or oxygen
    • 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
    • G03G13/02—Sensitising, i.e. laying-down a uniform charge
    • 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
    • G03G13/22—Processes involving a combination of more than one step according to groups G03G13/02 - G03G13/20
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
    • G03G5/0503—Inert supplements
    • G03G5/0507—Inorganic compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
    • G03G5/0503—Inert supplements
    • G03G5/051—Organic non-macromolecular compounds
    • G03G5/0517—Organic non-macromolecular compounds comprising one or more cyclic groups consisting of carbon-atoms only
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09733—Organic compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09733—Organic compounds
    • G03G9/0975—Organic compounds anionic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/001—Electric or magnetic imagery, e.g., xerography, electrography, magnetography, etc. Process, composition, or product
    • Y10S430/102—Electrically charging radiation-conductive surface

Abstract

940,577. Electrophotography. AGFA A. G. Nov. 4, 1960 [Nov. 5, 1959], No. 38021/60. Heading G2H. [Also in Division H1] In the production of electrophotographic images by imagewise discharge by light of a charged photo conductive layer, this layer is charged non- homogeneously and the charge image is developed with a toner which has not been subjected to a charging treatment and which has a high electrical polarisability. Non-uniform charging prior to exposure may be achieved by one of the following: (1) using a charging field that causes local disruption of the photoconductive layer e.g. 7 to 15 kV for a 10 to 30 Á layer of zinc oxide in silicone resin; (2) including dispersed materials of lower conductivity than the photoconductor; (3) employing a photoconductive layer with an irregular or patterned surface; (4) using a photoconductive layer with a surface having irregular electrical, e.g. tribo -electrical, properties. The toner may be of conductive materials such as carbon black, graphite, or conductive pigments or dyes or may be particles of an insulating material coated with antistatic compounds. A specific example is a bitumen-graphite toner treated with a phosphoric acid ester wetting agent or an aqueous dispersion of a stearic acid ester.
GB38021/60A 1959-11-05 1960-11-04 A process for the production of electrophotographic images Expired GB940577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA33197A DE1175985B (en) 1959-11-05 1959-11-05 Process for making electro-photographic images

Publications (1)

Publication Number Publication Date
GB940577A true GB940577A (en) 1963-10-30

Family

ID=6928065

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38021/60A Expired GB940577A (en) 1959-11-05 1960-11-04 A process for the production of electrophotographic images

Country Status (6)

Country Link
US (1) US3234017A (en)
AT (1) AT248242B (en)
BE (1) BE596767A (en)
CH (1) CH390052A (en)
DE (1) DE1175985B (en)
GB (1) GB940577A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2360165A1 (en) * 1976-07-29 1978-02-24 Indesit CONDENSER ASSEMBLY METHOD AND DEVICE
DE3014449A1 (en) * 1979-04-16 1980-10-30 Eastman Kodak Co ELECTROGRAPHIC COPYING PROCESS
US4587193A (en) * 1984-03-23 1986-05-06 Oce-Nederland, B.V. Copying process with patterned charge injection into charge transport layer

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL298605A (en) * 1962-10-01
US3399060A (en) * 1963-04-16 1968-08-27 Little Inc A Electrophotographic product and method for achieving electrophotographic copying
USRE29357E (en) * 1964-02-17 1977-08-16 Xerox Corporation Image formation and development
US3518081A (en) * 1964-02-17 1970-06-30 Xerox Corp Image formation and development
GB1120091A (en) * 1965-06-02 1968-07-17 Fuji Photo Film Co Ltd Improvements in or relating to photoconductive insulating materials
US3427258A (en) * 1965-11-12 1969-02-11 Owens Illinois Inc Electrostatic image developer powder composition
US3523900A (en) * 1967-03-18 1970-08-11 Yasuo Ueda Liquid developers for developing electrostatic images
GB1232406A (en) * 1967-09-01 1971-05-19
JPS4824904B1 (en) * 1967-11-13 1973-07-25
US3985560A (en) * 1969-08-21 1976-10-12 Xerox Corporation Migration imaging member with fusible particles
US3714048A (en) * 1969-10-23 1973-01-30 Iwatsu Electric Co Ltd Electrophotographic liquid developer containing asphalt and modified alkyl resin
US3888664A (en) * 1970-10-28 1975-06-10 Dennison Mfg Co Electrophotographic printing
US3849188A (en) * 1971-04-05 1974-11-19 Kohjin Co Electrostatic image-recording medium and method of making same
JPS5623152B2 (en) * 1972-03-03 1981-05-29
US3980494A (en) * 1975-01-02 1976-09-14 Beatty Charles L Method of reducing friction in blade cleaning of imaging surfaces
US3954466A (en) * 1975-01-02 1976-05-04 Xerox Corporation Electrostatographic photoreceptor
US4248950A (en) * 1975-04-21 1981-02-03 Am International, Inc. Electrostatic developer mix containing either MoS2, TiS2, WS.sub.2
NL7600686A (en) * 1976-01-23 1977-07-26 Oce Van Der Grinten Nv SINGLE COMPONENT DEVELOPMENT POWDER AS WELL AS A PROCESS FOR ITS MANUFACTURE.
MX147918A (en) * 1977-03-31 1983-02-02 Xerox Corp IMPROVEMENTS IN APPARATUS AND METHOD TO PRODUCE A VISIBLE IMAGE ON A PHOTO CONDUCTIVE IMAGE FORMING SURFACE
JPS53123135A (en) * 1977-03-31 1978-10-27 Xerox Corp Method of marking insulating surface and device for forming visible image on insulating surface
US4124287A (en) * 1977-03-31 1978-11-07 Xerox Corporation Imaging system utilizing uncharged marking particles
US4145478A (en) * 1977-07-28 1979-03-20 Desoto, Inc. Calcium oxide or hydroxide to improve the charge acceptance of electrographic dielectric resins
US4385823A (en) * 1979-04-16 1983-05-31 Eastman Kodak Company Method and means for improving maximum density and tonal range of electrographic images
USRE32259E (en) * 1979-04-16 1986-10-07 Eastman Kodak Company Method and means for improving maximum density and tonal range of electrographic images
US4302094A (en) * 1980-03-31 1981-11-24 Xerox Corporation Development method and apparatus
US4289837A (en) * 1980-05-05 1981-09-15 Xerox Corporation Development method and apparatus
JPS5745554A (en) * 1980-09-02 1982-03-15 Mita Ind Co Ltd Magnetic developer
JPS5746255A (en) * 1980-09-03 1982-03-16 Matsushita Electric Ind Co Ltd Picture forming particle
US4330613A (en) * 1980-11-07 1982-05-18 E. I. Du Pont De Nemours And Company Process for toning tacky image surfaces with dry nonelectroscopic toners
JPS5785060A (en) * 1980-11-17 1982-05-27 Mita Ind Co Ltd Composite developer
US4414321A (en) * 1980-11-27 1983-11-08 Mita Industrial Co. Ltd. Dry composite blended magnetic developer of resin encapsulated fine magnetite and resin encapsulated coarse magnetite
DE3170891D1 (en) * 1980-11-27 1985-07-11 Mita Industrial Co Ltd A one-component type magnetic developer
JPS5866949A (en) * 1981-10-16 1983-04-21 Fuji Photo Film Co Ltd Capsulated toner
US4454186A (en) * 1982-02-03 1984-06-12 Minnesota Mining And Manufacturing Company Primed surface and charge transfer media
US4481234A (en) * 1982-02-03 1984-11-06 Minnesota Mining And Manufacturing Company Process for making primed polymer surfaces and charge transfer media having conductivity sites thereon
US4794651A (en) * 1984-12-10 1988-12-27 Savin Corporation Toner for use in compositions for developing latent electrostatic images, method of making the same, and liquid composition using the improved toner
US5192638A (en) * 1984-12-10 1993-03-09 Spectrum Sciences B.V. Toner for use in compositions for developing latent electrostatic images, method of making the same, and liquid composition using the improved toner
US4842974A (en) * 1984-12-10 1989-06-27 Savin Corporation Toner for use in compositions for developing latent electrostatic images, method of making the same, and liquid composition using the improved toner
US4760009A (en) * 1985-12-04 1988-07-26 E. I. Du Pont De Nemours And Company Process for preparation of liquid toner for electrostatic imaging
US4968577A (en) * 1986-10-03 1990-11-06 Minolta Camera Kabushiki Kaisha Wrinkle configured electrophotographic capsule toner particles
US4973541A (en) * 1986-10-03 1990-11-27 Minolta Camera Kabushiki Kaisha Electrostatic latent image developer comprising capsule toner of irregular shape, wrinkled surface
US4883736A (en) * 1987-01-20 1989-11-28 Xerox Corporation Electrophotographic toner and developer compositions with polymeric alcohol waxes
US5080995A (en) * 1990-06-29 1992-01-14 Xerox Corporation Processes for toner pigment dispersion
US5695904A (en) * 1992-08-19 1997-12-09 Xerox Corporation Semi-dry developers and processes thereof

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
US2297691A (en) * 1939-04-04 1942-10-06 Chester F Carlson Electrophotography
US2599542A (en) * 1948-03-23 1952-06-10 Chester F Carlson Electrophotographic plate
US2598732A (en) * 1949-03-09 1952-06-03 Haloid Co Electrophotography
US2777957A (en) * 1950-04-06 1957-01-15 Haloid Co Corona discharge device
US2853383A (en) * 1953-10-02 1958-09-23 Paul H Keck Method and apparatus for amplifying photoelectric currents
US2965573A (en) * 1958-05-02 1960-12-20 Haloid Xerox Inc Xerographic developer
US2917385A (en) * 1955-08-26 1959-12-15 Haloid Xerox Inc Reflex xerography
US3005707A (en) * 1956-04-16 1961-10-24 Leonard E Ravich Devices exhibiting persistent internal polarization and methods of utilizing the same
BE576367A (en) * 1958-03-05
US3080251A (en) * 1958-03-13 1963-03-05 Xerox Corp Method of xerographic development

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2360165A1 (en) * 1976-07-29 1978-02-24 Indesit CONDENSER ASSEMBLY METHOD AND DEVICE
DE3014449A1 (en) * 1979-04-16 1980-10-30 Eastman Kodak Co ELECTROGRAPHIC COPYING PROCESS
US4587193A (en) * 1984-03-23 1986-05-06 Oce-Nederland, B.V. Copying process with patterned charge injection into charge transport layer

Also Published As

Publication number Publication date
US3234017A (en) 1966-02-08
DE1175985B (en) 1964-08-13
AT248242B (en) 1966-07-25
BE596767A (en) 1961-05-04
CH390052A (en) 1965-03-31

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