GB1072075A - Electrophotographic method and apparatus - Google Patents

Electrophotographic method and apparatus

Info

Publication number
GB1072075A
GB1072075A GB21694/65A GB2169465A GB1072075A GB 1072075 A GB1072075 A GB 1072075A GB 21694/65 A GB21694/65 A GB 21694/65A GB 2169465 A GB2169465 A GB 2169465A GB 1072075 A GB1072075 A GB 1072075A
Authority
GB
United Kingdom
Prior art keywords
image
developed
drum
web
transfer
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
GB21694/65A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB1072075A publication Critical patent/GB1072075A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • 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
    • G03G15/1665—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 by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat
    • G03G15/167—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 by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat at least one of the recording member or the transfer member being rotatable during the transfer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Abstract

1,072,075. Printing processes. RADIO CORPORATION OF AMERICA. May 21, 1965 [June 12, 1964], No. 21694/65. Heading B6C. [Also in Division G2] Electrostatic charge for effecting transfer of a developed electroscopic powder image, is carried on a dielectric sheet, which is pressed into contact with the back of the transfer sheet, whose front is pressed against the powder image. As shown, an endless band 28a of a polyethylene terephthalate dielectric is charged by a corona device 15a so that it attracts and carries a transfer sheet 30 into contact with a powder image on a zinc oxide coated paper web 10a attached to a drum 54. The transfer is effected, under the influence of the charge on band 28a, as the sheet 30 separates from the web on the drum and is guided into shoot 68. Heater 72 fixes the image. Paper web 10a is charged at 15 and exposed to the image, formed on a thin-walled cathode-ray tube, through a transparent web 44 which has a low coefficient of friction to reduce wear. The exposed web is cut-off at 52 and attached to drum 54. The electrostatic latent image is developed with a mixture of pigmented shellac toner and iron filings applied by a rotary brush 56. Any iron filings entrained on the developed surface are removed by electromagnet 60. The same electrostatic latent image may be developed a number of times, on successive revolutions of drum 54, to provide multiple copies. If a single developed image is required, paper web 10a is delivered at shoot 78.
GB21694/65A 1964-06-12 1965-05-21 Electrophotographic method and apparatus Expired GB1072075A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US374747A US3442645A (en) 1964-06-12 1964-06-12 Electrophotographic method

Publications (1)

Publication Number Publication Date
GB1072075A true GB1072075A (en) 1967-06-14

Family

ID=23478061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21694/65A Expired GB1072075A (en) 1964-06-12 1965-05-21 Electrophotographic method and apparatus

Country Status (6)

Country Link
US (2) US3442645A (en)
BE (1) BE665320A (en)
FR (1) FR1437087A (en)
GB (1) GB1072075A (en)
NL (1) NL6507482A (en)
SE (1) SE316982B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10355176B2 (en) * 2011-12-06 2019-07-16 Epistar Corporation Formation of uniform phosphor regions for broad-area lighting systems

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3655370A (en) * 1966-04-12 1972-04-11 Xerox Corp Photoelectrophoretic image transfer
US3685896A (en) * 1966-11-21 1972-08-22 Xerox Corp Duplicating method and apparatus
US3685895A (en) * 1970-05-18 1972-08-22 Opto Graphics Inc Electrophotographic charging easel
US3798029A (en) * 1971-07-27 1974-03-19 Sherwin Williams Co Laminated electrophotographic unit and process
JPS5290944A (en) * 1976-01-26 1977-07-30 Canon Inc Electrostatic printing
US4586810A (en) * 1980-11-07 1986-05-06 Savin Corporation Engineering drawing electrophotocopier
US4756992A (en) * 1984-08-06 1988-07-12 Cheng Stephen Ming Full tone electrophotographic imaging reproduction
US5162189A (en) * 1989-12-27 1992-11-10 Eastman Kodak Company Toner image pressure transfer method and toner useful therefor
US5049469A (en) * 1989-12-27 1991-09-17 Eastman Kodak Company Toner image pressure transfer method and toner useful therefor
DE10001452C2 (en) * 2000-01-15 2002-04-25 Schott Glas Device for printing on paper or plate-like materials

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1482354A (en) * 1922-01-17 1924-01-29 Prismatone Co Inc Art of printing
BE478098A (en) * 1946-09-04
US2576047A (en) * 1948-10-21 1951-11-20 Battelle Development Corp Method and apparatus for printing electrically
US2756676A (en) * 1953-05-04 1956-07-31 Haloid Co Method for the production of electrophotographic prints
US2812709A (en) * 1953-10-21 1957-11-12 Haloid Co Multiple copy transfer process and apparatus
GB774043A (en) * 1954-05-05 1957-05-01 Bendix Aviat Corp Sonic transducer with mechanical motion transformer
US3013878A (en) * 1955-12-29 1961-12-19 Xerox Corp Method and apparatus for transferring and fixing xerographic images
US2982647A (en) * 1956-06-14 1961-05-02 Haloid Xerox Inc Electrostatic image reproduction
US3216844A (en) * 1962-03-02 1965-11-09 Xerox Corp Method of developing electrostatic image with photoconductive donor member
US3124457A (en) * 1962-04-02 1964-03-10 Charge
US3244083A (en) * 1962-10-23 1966-04-05 Xerox Corp Xerographic device
GB1070578A (en) * 1962-11-27 1967-06-01 Tokyo Shibaura Electric Co Toner image transfer system
US3288605A (en) * 1965-11-17 1966-11-29 Equipment Dev Corp Electrophotographic printing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10355176B2 (en) * 2011-12-06 2019-07-16 Epistar Corporation Formation of uniform phosphor regions for broad-area lighting systems

Also Published As

Publication number Publication date
NL6507482A (en) 1965-12-13
US3442645A (en) 1969-05-06
BE665320A (en) 1965-10-01
FR1437087A (en) 1966-04-29
SE316982B (en) 1969-11-03
US3549251A (en) 1970-12-22

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