Global Patent Index - EP 0492985 A2

EP 0492985 A2 19920701 - Electrophotographic color printing process.

Title (en)

Electrophotographic color printing process.

Title (de)

Elektrophotographisches Farbdruckverfahren.

Title (fr)

Procédé d'impression électrophotographique à couleurs.

Publication

EP 0492985 A2 19920701 (EN)

Application

EP 91311799 A 19911219

Priority

US 63229390 A 19901221

Abstract (en)

The present invention relates to electrophotographic printing and, in particular, to a process for plural color electrophotographic printing with controlled deposition of each color during the printing process. The process comprises the steps of (a) charging a photoconductor; (b) exposing the photoconductor to light to discharge a first exposed area; (c) applying a first color of charged toner particles to the photoconductor; (d) recharging the photoconductor, the first color of charged toner particles adhering to the unexposed earlier charged area of the photoconductor; (e) exposing the photoconductor to light to discharge a second exposed area; and (f) applying a second color of charged toner particles to the photoconductor, said particles adhering to the unexposed charged area of the photoconductor.

IPC 1-7

G03G 13/01

IPC 8 full level

B41J 2/525 (2006.01); G03G 13/01 (2006.01); G03G 15/01 (2006.01)

CPC (source: EP)

G03G 13/01 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0492985 A2 19920701; EP 0492985 A3 19930526; JP H04317074 A 19921109

DOCDB simple family (application)

EP 91311799 A 19911219; JP 35593391 A 19911220