GB1030383A - Improvements in or relating to electrostatic printing processes - Google Patents

Improvements in or relating to electrostatic printing processes

Info

Publication number
GB1030383A
GB1030383A GB22422/64A GB2242264A GB1030383A GB 1030383 A GB1030383 A GB 1030383A GB 22422/64 A GB22422/64 A GB 22422/64A GB 2242264 A GB2242264 A GB 2242264A GB 1030383 A GB1030383 A GB 1030383A
Authority
GB
United Kingdom
Prior art keywords
plate
areas
image areas
electrode
toner particles
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
GB22422/64A
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.)
Continental Can Co Inc
Original Assignee
Continental Can Co 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 Continental Can Co Inc filed Critical Continental Can Co Inc
Publication of GB1030383A publication Critical patent/GB1030383A/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/42—Printing without contact between forme and surface to be printed, e.g. by using electrostatic fields
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Abstract

1,030,383. Electrophotographic processes. CONTINENTAL CAN CO., Inc. May 29, 1964 [Dec. 4, 1963], No. 22422/64. Addition to 1, 020, 836. Heading G2H. An improvement in or modification of the method described and claimed in the parent Specification, includes establishing a potential difference between printing plate 40, Fig. 6, and a development electrode 70 during the application of image forming material 55, the electrode having the same polarity as the non-image areas of the plate, but being maintained at less electrical potential. A printing plate 41, Fig. 1, was etched, such that depressions 42 were formed at non-image areas, the unetched portions 43 providing image areas. The depressions 42 were filled with insulating material 44, Fig. 2 (not shown), e.g., epoxy resin, and the plate ground and polished to a smooth surface Fig. 3 (not shown). The plate was negatively electrostatically charged by moving conductor 51, Fig. 5, (not shown), in the form of fine steel or platinum wires across the plate surface by an insulated traveller 52. Non-image areas 46 become negatively charged, while exposed image areas 45 are positively charged. Developing powder 55, Fig. 6, is caused to cascade from a hopper 56, between the plate 41 and the development electrode 70. The powder has negatively charged toner particles which collect at areas 57 above the image areas 45. Insulating spacers 61, Fig. 7, (not shown), are placed upon plate 4D to receive layer 62 to be printed. The charge on plate 41 is then reversed in polarity, such that areas 45 become repulsive to toner particles. A conductor 63 connected to a high voltage source 65 is moved over the layer 62 by an insulated traveller 64. The layer 62 is thus given a positive charge which attracts toner particles at areas 57. [Instead of connecting the electrode 70 to a power source 71, the electrode 70 may have a dielectric coating and be subjected to a corona discharge]. The electric field established prevents toner adhering to areas 46.
GB22422/64A 1963-12-04 1964-05-29 Improvements in or relating to electrostatic printing processes Expired GB1030383A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US328086A US3306198A (en) 1963-12-04 1963-12-04 Electrostatic printing process

Publications (1)

Publication Number Publication Date
GB1030383A true GB1030383A (en) 1966-05-25

Family

ID=23279451

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22422/64A Expired GB1030383A (en) 1963-12-04 1964-05-29 Improvements in or relating to electrostatic printing processes

Country Status (2)

Country Link
US (1) US3306198A (en)
GB (1) GB1030383A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3370529A (en) * 1966-08-05 1968-02-27 Fairchild Camera Instr Co Electrostatic printer having selfregulating corona discharge
US3443517A (en) * 1967-01-04 1969-05-13 Xerox Corp Electrostatic duplicating system employing relief printing plate
US3561356A (en) * 1967-02-24 1971-02-09 Continental Can Co Precharging of substrate for electrostatic printing
SE381109B (en) * 1972-09-28 1975-11-24 Commw Of Australia PROCEDURE FOR OFFSET PRINTING
US3789753A (en) * 1973-05-29 1974-02-05 Varian Associates Apparatus for printing of charge images
JPS5063930A (en) * 1973-06-08 1975-05-30
GB1598357A (en) * 1976-12-23 1981-09-16 Toppan Printing Co Ltd Dry planographic printing apparatus and method
US4197331A (en) * 1978-12-14 1980-04-08 Xerox Corporation Novel electrostatic imaging system
US5101216A (en) * 1990-09-21 1992-03-31 Eastman Kodak Company Xeroprinting using a corona charge injection modifying material
US6158346A (en) * 1998-06-22 2000-12-12 The Penn State Research Foundation Electronic printing of non-planar macro and micro devices

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2690394A (en) * 1943-08-27 1954-09-28 Chester F Carlson Electrophotography
US2576047A (en) * 1948-10-21 1951-11-20 Battelle Development Corp Method and apparatus for printing electrically
US2573881A (en) * 1948-11-02 1951-11-06 Battelle Development Corp Method and apparatus for developing electrostatic images with electroscopic powder
US2647464A (en) * 1949-10-26 1953-08-04 Battelle Development Corp Electrography
BE536877A (en) * 1954-03-29
US2910351A (en) * 1955-01-03 1959-10-27 Gen Electric Method of making printed circuit
US3010842A (en) * 1955-08-29 1961-11-28 Xerox Corp Development of electrostatic images

Also Published As

Publication number Publication date
US3306198A (en) 1967-02-28

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