GB1034009A - Forming electrostatic latent images - Google Patents

Forming electrostatic latent images

Info

Publication number
GB1034009A
GB1034009A GB45231/64A GB4523164A GB1034009A GB 1034009 A GB1034009 A GB 1034009A GB 45231/64 A GB45231/64 A GB 45231/64A GB 4523164 A GB4523164 A GB 4523164A GB 1034009 A GB1034009 A GB 1034009A
Authority
GB
United Kingdom
Prior art keywords
image
screen
conductive
web
latent
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
GB45231/64A
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.)
Xerox Ltd
Original Assignee
Rank Xerox Ltd
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 Rank Xerox Ltd filed Critical Rank Xerox Ltd
Publication of GB1034009A publication Critical patent/GB1034009A/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
    • G03G15/05—Apparatus for electrographic processes using a charge pattern for imagewise charging, e.g. photoconductive control screen, optically activated charging means
    • G03G15/051—Apparatus for electrographic processes using a charge pattern for imagewise charging, e.g. photoconductive control screen, optically activated charging means by modulating an ion flow through a photoconductive screen onto which a charge image has been formed

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)

Abstract

1,034,009. Electrophotographic apparatus, RANK XEROX Ltd. Nov. 6,1964 [Nov. 12,1963], No. 45231/64. Heading G2H. In apparatus for simultaneously charging and exposing a photo conductive layer a web 2 having a conductive backing 9 is fed beneath a biased control screen 12 at least one side of which has a photo conductive layer 22. The screen may be conductive interwoven strands, copper mesh or metallic screening. An image of an original 1 is projected through the web 2 on to the screen, while a corona discharge is connected to power supply 24. The layer 22 becomes more conductive in illuminated areas and a latent electrostatic charge image conforming to original 1 is formed on web 2. The latent image is developed in apparatus 30 by resinous toner particles mixed with carried particles and fixed in chamber 31 by heat or solvent vapour. In another embodiment, Fig. 2 (not shown) a conductive shield 38 surrounds an electrode 17. A latent electrostatic image is formed on member 35 which may be of glass, paper, cellulose acetate or polyester film. The upper surface of member 35 is light reflecting or if member 35 is transparent table 36 is reflecting. In another embodiment, Fig. 3 (not shown) the screen 12 is attached to an earthed conductive shield 25. The screen 12, Fig 4 (not shown) may be positioned between electrode 17 and projector 40. A heating element 43, Fig. 5 (not shown) is positioned beneath member 35 of heat deformable plastic, e.g., Stay belite or Piccolastic, so as to form, upon '.eating, a frosted image pattern of a latent electros.atic image.
GB45231/64A 1963-11-12 1964-11-06 Forming electrostatic latent images Expired GB1034009A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US322613A US3220324A (en) 1963-11-12 1963-11-12 Photoconductively controlled corona charging

Publications (1)

Publication Number Publication Date
GB1034009A true GB1034009A (en) 1966-06-22

Family

ID=23255641

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45231/64A Expired GB1034009A (en) 1963-11-12 1964-11-06 Forming electrostatic latent images

Country Status (3)

Country Link
US (1) US3220324A (en)
DE (1) DE1497086B2 (en)
GB (1) GB1034009A (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680954A (en) * 1965-04-30 1972-08-01 Eastman Kodak Co Electrography
US3449568A (en) * 1966-12-27 1969-06-10 Xerox Corp Corona discharge apparatus for creating an electrostatic charge pattern on a xerographic surface
US3536396A (en) * 1967-09-28 1970-10-27 Kee Lox Mfg Co Apparatus for making reproductions
US3744898A (en) * 1967-11-28 1973-07-10 Canon Kk Corona discharge apparatus
CA1001704A (en) * 1968-11-15 1976-12-14 Thomas D. Kittredge Apparatus for aperture controlled electrostatic image reproduction or constitution
JPS493003Y1 (en) * 1968-11-25 1974-01-25
FR2165100A5 (en) * 1969-10-06 1973-08-03 Electroprint Inc
US3711710A (en) * 1969-11-07 1973-01-16 Australia Res Lab Method of and means for controlling corona emission
US4053770A (en) * 1970-02-03 1977-10-11 Canon Kabushiki Kaisha A.c. corona discharging device
US3679306A (en) * 1971-01-21 1972-07-25 Pitney Bowes Inc Feedback system for controlling image light energy in electrostatic photocopiers
US3797927A (en) * 1971-05-20 1974-03-19 Canon Kk Electrophotographic copying machine
US3881921A (en) * 1971-10-01 1975-05-06 Eastman Kodak Co Electrophotographic process employing image and control grid means
CH1517772A4 (en) * 1972-10-17 1975-04-30 Ebauches Sa Electronic watch
US3816749A (en) * 1972-11-15 1974-06-11 A North Exposure controlled corona device
US3879195A (en) * 1973-01-05 1975-04-22 Horizons Inc Electrophotography with a photoconductor coated fine mesh
US3880513A (en) * 1973-01-05 1975-04-29 Horizons Inc Electrophotography with a photoconductor coated fine mesh
JPS583227B2 (en) * 1973-07-17 1983-01-20 キヤノン株式会社 seiden fukushiyaki
JPS5753195B2 (en) * 1973-09-07 1982-11-11
US3940270A (en) * 1974-05-06 1976-02-24 Addressograph Multigraph Corporation Reproduction system utilizing ion modulator and dielectric imaging surface
US3937571A (en) * 1974-05-06 1976-02-10 Addressograph-Multigraph Corporation Reproduction system utilizing ion modular and dielectric imaging surface
US3957365A (en) * 1974-07-26 1976-05-18 Addressograph Multigraph Corporation Duplicating apparatus utilizing ion modulating means as the image generating source and method of duplicating therewith
JPS5320333A (en) * 1976-08-10 1978-02-24 Canon Inc Screen photo-sensitive body
JPS6036582B2 (en) * 1979-05-08 1985-08-21 キヤノン株式会社 Toner for development
US4559564A (en) * 1983-02-21 1985-12-17 Sharp Kabushiki Kaisha Two-dimensional image reader
US5257045A (en) * 1992-05-26 1993-10-26 Xerox Corporation Ionographic printing with a focused ion stream

Also Published As

Publication number Publication date
DE1497086B2 (en) 1976-11-04
US3220324A (en) 1965-11-30
DE1497086A1 (en) 1969-03-27

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