GB675398A - Method and apparatus for printing electrically - Google Patents

Method and apparatus for printing electrically

Info

Publication number
GB675398A
GB675398A GB5416/50A GB541650A GB675398A GB 675398 A GB675398 A GB 675398A GB 5416/50 A GB5416/50 A GB 5416/50A GB 541650 A GB541650 A GB 541650A GB 675398 A GB675398 A GB 675398A
Authority
GB
United Kingdom
Prior art keywords
needles
powder
image
drum
image layer
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
GB5416/50A
Inventor
Roland M Schaffert
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.)
Battelle Development Corp
Original Assignee
Battelle Development Corp
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 Battelle Development Corp filed Critical Battelle Development Corp
Publication of GB675398A publication Critical patent/GB675398A/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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the 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
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
    • G03G15/163—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap
    • G03G15/1635—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap the field being produced by laying down an electrostatic charge behind the base or the recording member, e.g. by a corona device
    • 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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/28—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning
    • G03G15/30—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning in which projection is formed on a drum
    • 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
    • Y10S101/00—Printing
    • Y10S101/37—Printing employing electrostatic force
    • 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
    • Y10S222/00—Dispensing
    • Y10S222/01—Xerography
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Printing Methods (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)

Abstract

675,398. Producing photographs electrically. BATTELLE DEVELOPMENT CORPORATION. March 3, 1950, No. 5416/50. Class 98 (ii). [Also in Groups XVI and XXXV] Secured to an earthed electrically conductive drum 1 is a printing plate 9 (see Group XVI), comprising a flexible metal or other conductive backing and a non-conductive image layer, which is electrostatically charged by corona needles 30, 34. Powder triboelectricallyoppositely-charged flows from a hopper 11 to a receptacle 15 over part of the drum surface, and adheres to the image layer. The charge on the powder is increased by needles 34a of opposite polarity to needles 30, 34. A strip of transfer material such as paper is led from a roll 19 over part of the drum surface and thence over a shoot 23 to a take-up roll 24 driven in synchronism with the drum. The corona needles 30 produce a greater charge on the paper than on the image layer, and the powder is thus transferred to the paper, reproducing the image thereon, while the paper adheres to the drum by electrostatic attraction, and is removed therefrom by strippers 21. Needles 44 of opposite polarity may be used to loosen any powder left on the drum, which powder is removed by a cleaning device 38, which may be a wiping means, suction device, or air blast device. The needles 34 replenish the charge on the image layer, which was reduced by the needles 44. Fresh powder is then caused to adhere to the image layer as before. The powder image is fixed on the transfer strip by being fused into it by heating elements 37. The voltage of the supply for the needles is 5000-8000. and the needles may be 0.32 inch apart and <SP>7</SP>/ 16 inch from the image layer in the case of a negative charge, or 0.16 inch apart and # inch from the plate for a positive charge. Instead of the needles, an arrangement of spaced parallel wires axial to the drum, attached at their ends to insulating blocks, and mounted within a charging shield, the wires being about ¢ inch from the image layer and ¢ inch apart, may be used. The printing plate may comprise a backing of metal foil, and the design be traced on it with a non-conductive lacquer or paint, or the backing may be coated with a light-sensitive lacquer exposed to light through a negative, the unexposed portions being dissolved away and the image portion fixed by burning. A plate including a photo-conductive insulating layer may have a powder image produced thereon by electrostatic charging, exposure, and powder development, after which the image can be fused into the plate so as to become a permanent printing image.
GB5416/50A 1948-10-21 1950-03-03 Method and apparatus for printing electrically Expired GB675398A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55816A US2576047A (en) 1948-10-21 1948-10-21 Method and apparatus for printing electrically

Publications (1)

Publication Number Publication Date
GB675398A true GB675398A (en) 1952-07-09

Family

ID=22000337

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5416/50A Expired GB675398A (en) 1948-10-21 1950-03-03 Method and apparatus for printing electrically

Country Status (4)

Country Link
US (1) US2576047A (en)
CH (1) CH286141A (en)
DE (1) DE919891C (en)
GB (1) GB675398A (en)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
DE1016722B (en) * 1954-01-26 1957-10-03 Horizons Inc Method and device for the reproduction of characters and images generated electrostatically on a non-conductive layer
US3039388A (en) * 1958-01-02 1962-06-19 Harris Intertype Corp Printing press and sheet control device therefor
FR2568339A1 (en) * 1978-11-14 1986-01-31 Stabilus Gmbh DEVICE FOR DIFFERENT SPRING EFFECTS IN DIFFERENT PARTS OF ITS TRACK

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US2684901A (en) * 1950-12-19 1954-07-27 Haloid Co Image transfer device
US2701764A (en) * 1951-05-02 1955-02-08 Chester F Carlson Electrophotographic apparatus and methods
US2684902A (en) * 1951-11-23 1954-07-27 Haloid Co Image transfer mechanism for electrostatically adhering images
US2832977A (en) * 1952-02-05 1958-05-06 Haloid Co Electrostatic cleaning device
US2824813A (en) * 1952-05-12 1958-02-25 Haloid Co Method for developing electrostatic latent images
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US2825078A (en) * 1953-04-07 1958-03-04 Western Electric Co Electrostatic apparatus for separating articles
US2741959A (en) * 1953-04-10 1956-04-17 Haloid Co Electrophotography
US2882412A (en) * 1953-06-03 1959-04-14 Olin Mathieson Apparatus for treating plastic material
US3084061A (en) * 1953-09-23 1963-04-02 Xerox Corp Method for formation of electro-static image
US2812709A (en) * 1953-10-21 1957-11-12 Haloid Co Multiple copy transfer process and apparatus
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US2847305A (en) * 1954-12-16 1958-08-12 Haloid Xerox Inc Xerographic transfer process
US2892708A (en) * 1955-01-03 1959-06-30 Haloid Xerox Inc Xerographic transfer process
US3063859A (en) * 1955-03-01 1962-11-13 Xerox Corp Method and apparatus for transferring images from xerographic to metallic plates
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US2779306A (en) * 1955-03-25 1957-01-29 Ibm Electroscopic toner metering device
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US2790082A (en) * 1955-08-01 1957-04-23 Haloid Co Xerographic charging device
US2802049A (en) * 1955-08-09 1957-08-06 Sperry Rand Corp Magnetic printer
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US2972304A (en) * 1959-06-02 1961-02-21 Eastman Kodak Co Electrostatic printing
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US3062536A (en) * 1959-07-02 1962-11-06 Xerox Corp Sheet stripping apparatus
US3096532A (en) * 1960-05-05 1963-07-09 Stokes F J Corp Tablet duster
US3161882A (en) * 1960-08-05 1964-12-15 Minnesota Mining & Mfg Galvanometer using electrostatic orifice recording means
US3186838A (en) * 1960-12-27 1965-06-01 Xerox Corp Xerographic plate cleaning method utilizing the relative movement of a cleaning web
US3212888A (en) * 1961-06-12 1965-10-19 Xerox Corp Method for developing latent electrostatic charge halftone images
US3190643A (en) * 1962-03-01 1965-06-22 Xerox Corp Sheet guiding apparatus
US3219509A (en) * 1962-07-18 1965-11-23 Xerox Corp Apparatus for automatic fabrication of microcircuitry
US3245823A (en) * 1962-08-01 1966-04-12 Xerox Corp Electrostatic image development apparatus
GB1040173A (en) * 1963-01-04 1966-08-24 Howards Ilford Ltd Epoxy esters
US3306198A (en) * 1963-12-04 1967-02-28 Continental Can Co Electrostatic printing process
US3426354A (en) * 1964-06-01 1969-02-04 Xerox Corp Electrostatic charge image recorder
US3296965A (en) * 1964-06-03 1967-01-10 Interchem Corp Method of electrostatic powder gravure printing and apparatus therefor
US3442645A (en) * 1964-06-12 1969-05-06 Rca Corp Electrophotographic method
US3306193A (en) * 1964-09-14 1967-02-28 Continental Can Co Electrostatic screen printing with magnetic conveyer and moving base electrode
US3302560A (en) * 1965-06-11 1967-02-07 Mousanto Company Semi-automatic electrostatic printing system having moving screen
US3503776A (en) * 1966-02-21 1970-03-31 Xerox Corp Xerographic development
US3395042A (en) * 1966-03-18 1968-07-30 William C. Herbert Jr. Paper-cleaning apparatus
DE1797645C3 (en) * 1966-03-23 1981-08-13 Canon K.K., Tokyo Electrophotographic copier
DE1288916B (en) * 1966-07-28 1969-02-06 A M Zimmermann & Co Kg Method for transferring a toner image located on a photoconductive layer
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US3357400A (en) * 1966-10-11 1967-12-12 Xerox Corp Electrostatic apparatus for paper detacking
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US3515584A (en) * 1967-03-27 1970-06-02 Xerox Corp Xeroprinting master
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US3659526A (en) * 1969-12-08 1972-05-02 Itt Magnetic and vacuum cleaning device for printer
US3720785A (en) * 1971-02-25 1973-03-13 Saxon Ind Inc Recording system and method for copying machine
DE2253444A1 (en) * 1972-10-31 1974-05-09 Bostik Gmbh DEVICE FOR THE DOSED APPLICATION OF A POWDER-FORMED FELT ADHESIVE TO A CARRIER
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Cited By (3)

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Publication number Priority date Publication date Assignee Title
DE1016722B (en) * 1954-01-26 1957-10-03 Horizons Inc Method and device for the reproduction of characters and images generated electrostatically on a non-conductive layer
US3039388A (en) * 1958-01-02 1962-06-19 Harris Intertype Corp Printing press and sheet control device therefor
FR2568339A1 (en) * 1978-11-14 1986-01-31 Stabilus Gmbh DEVICE FOR DIFFERENT SPRING EFFECTS IN DIFFERENT PARTS OF ITS TRACK

Also Published As

Publication number Publication date
DE919891C (en) 1954-11-08
US2576047A (en) 1951-11-20
CH286141A (en) 1952-10-15

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