Global Patent Index - EP 0225456 A2

EP 0225456 A2 19870616 - Method of image reversal in color electrophotography.

Title (en)

Method of image reversal in color electrophotography.

Title (de)

Verfahren zur Bildumkehr in der Farbelektrophotographie.

Title (fr)

Procédé d'inversion d'images en l'électrophotographie à couleurs.

Publication

EP 0225456 A2 19870616 (EN)

Application

EP 86114667 A 19861022

Priority

  • AU 6434586 A 19861031
  • AU PH319085 A 19851031

Abstract (en)

An electrophotographic method of producing positive color proof copies from negative films wherein a charged photoconductor is exposed to the negative film and toned with a conductive toner forming image deposits in the unexposed areas. The conductive deposits are transferred to a dielectric paper and affixed thereto. The dielectric paper is charged, the charge being accepted only in areas free of the conductive deposits, i.e. the final image areas. The charged areas are toned with color toners and the color toner deposit transferred to printing stock to provide the positive proof.

IPC 1-7

G03G 13/01

IPC 8 full level

G03G 13/01 (2006.01)

CPC (source: EP)

G03G 13/01 (2013.01)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0225456 A2 19870616; EP 0225456 A3 19870729; EP 0225456 B1 19900816; AU 582024 B2 19890309; AU 6434586 A 19870507

DOCDB simple family (application)

EP 86114667 A 19861022; AU 6434586 A 19861031