CH546424A - Master sheet - for electrostatic copying - Google Patents

Master sheet - for electrostatic copying

Info

Publication number
CH546424A
CH546424A CH546424DA CH546424A CH 546424 A CH546424 A CH 546424A CH 546424D A CH546424D A CH 546424DA CH 546424 A CH546424 A CH 546424A
Authority
CH
Switzerland
Prior art keywords
sheet
electrical conductivity
parts
electrostatic copying
print
Prior art date
Application number
Other languages
German (de)
Original Assignee
Lamson Industries 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 Lamson Industries Ltd filed Critical Lamson Industries Ltd
Publication of CH546424A publication Critical patent/CH546424A/en

Links

Classifications

    • 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

Abstract

Electrostatic copying is effected by placing a print-off sheet against a transfer sheet having a backing layer and a transferable coating on one surface, delimiting background image parts on this surface by a partial transfer of the transferable coating whereby difference in electrical conductivity are produced on the surface between the image and background parts, thereafter sepg. the transfer sheet from the print-off sheet and using one of the sheets as a master for a dielectric recording element by the application of an electric field which produces a charge pattern in accordance with the differences in electrical conductivity brought about by the contact sheet and developing the charge pattern so produced on the recording element with a developer sensitive to this pattern. Specif. the electrical conductivity of the image parts is greater than that of the background parts.
CH546424D 1973-01-20 1973-01-20 Master sheet - for electrostatic copying CH546424A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH94773 1973-01-20

Publications (1)

Publication Number Publication Date
CH546424A true CH546424A (en) 1974-02-28

Family

ID=4198861

Family Applications (1)

Application Number Title Priority Date Filing Date
CH546424D CH546424A (en) 1973-01-20 1973-01-20 Master sheet - for electrostatic copying

Country Status (1)

Country Link
CH (1) CH546424A (en)

Similar Documents

Publication Publication Date Title
GB1446252A (en) Image transfer in an imaging apparatus
GB1445671A (en) Transferring charged particles
ES385845A1 (en) Transfer apparatus
GB807079A (en) Improvements in electrostatic printing
GB1477930A (en) Image transfer method and device
JPS61500188A (en) Conductive toner powder image transfer device
CH546424A (en) Master sheet - for electrostatic copying
NL7217551A (en) Master sheet - for electrostatic copying
GB1518848A (en) Contact fuser apparatus
US3640746A (en) Adhesive contact electrification imaging
JPS56146796A (en) Plural sheet recording system
JPS576862A (en) Recording method
ES380379A1 (en) Electrostatic transfer of toner images
GB1040371A (en) Improvements in electrostatic image reproduction
GB1056569A (en) Electrophotographic image transfer process
FR2360921A1 (en) Electrostatic printing and duplication method - uses master sheet with duplication image area having electrical resistivity greater than that of the background area
GB1507724A (en) Electrographically imaged copying form
JPS57118253A (en) Photoreceptor for copying and printing
JPS5215327A (en) Treating system for the electro-record image
GB1428817A (en) Process and an apparatus for producing latent images
JPS5719761A (en) Electrostatic printing method
JPS55134872A (en) Image recording method
FR2145077A5 (en) Electrographic copying process - by electrostatic image -formation on charged cellulosic surface
GB1428639A (en) Textile printing method utilizing liquid ink electrostatic developing
JPS5634496A (en) Electrosensitive recording body

Legal Events

Date Code Title Description
PL Patent ceased