Global Patent Index - EP 0932852 B1

EP 0932852 B1 20000531 - METHOD OF MULTICOLOR ELECTROPHOTOGRAPHIC PRINTING WITH UNIPOLAR TONER

Title (en)

METHOD OF MULTICOLOR ELECTROPHOTOGRAPHIC PRINTING WITH UNIPOLAR TONER

Title (de)

VERFAHREN ZUM MEHRFARBIGEN ELEKTROFOTOGRAFISCHEN DRUCKEN MIT UNIPOLAREM TONER

Title (fr)

PROCEDE D'IMPRESSION ELECTROPHOTOGRAPHIQUE MULTICOLORE AVEC TONER UNIPOLAIRE

Publication

EP 0932852 B1 (DE)

Application

EP 97945762 A

Priority

  • DE 9702414 W
  • DE 19642891 A

Abstract (en)

[origin: WO9818058A1] The present invention pertains to a method for electrophotographically printing a multicoloured image, comprising the following steps: a) surface elements of a layer system are loaded on a negative initial potential (step S1); b) the surface elements are exposed to varying degrees (step S2); c) the surface elements are processed with negative particles of a third colour (step S3); d) the surface elements are arranged near a source of light scattered in a substantially homogenous manner (step S5); e) the surface elements are processed with negative particles of a second colour (step S6).

IPC 1-7

G03G 15/01

IPC 8 full level

G03G 15/01 (2006.01)

CPC (source: EP)

G03G 15/0152 (2013.01); G03G 15/0163 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 9818058 A1 19980430; DE 19781188 D2 19991223; DE 59701825 D1 20000706; EP 0932852 A1 19990804; EP 0932852 B1 20000531; US 6205311 B1 20010320

DOCDB simple family (application)

DE 9702414 W 19971016; DE 19781188 T 19971016; DE 59701825 T 19971016; EP 97945762 A 19971016; US 28470999 A 19990617