EP 0916113 B1 20021030 - PROCESS FOR OPTIMISING A HALF-TONE REPRODUCTION ON A PHOTOCONDUCTOR OF ELECTROPHOTOGRAPHIC PRINTERS AND COPIERS
Title (en)
PROCESS FOR OPTIMISING A HALF-TONE REPRODUCTION ON A PHOTOCONDUCTOR OF ELECTROPHOTOGRAPHIC PRINTERS AND COPIERS
Title (de)
VERFAHREN ZUM OPTIMIEREN EINER HALBTONDARSTELLUNG AUF EINEM FOTOLEITER VON ELEKTROFOTOGRAFISCHEN DRUCK- UND KOPIEREINRICHTUNGEN
Title (fr)
PROCEDE POUR OPTIMISER UNE REPRESENTATION DE DEMI-TEINTES SUR UN PHOTOCONDUCTEUR DE SYSTEMES D'IMPRESSION ET DE COPIE ELECTROPHOTOGRAPHIQUE
Publication
Application
Priority
- DE 9701405 W 19970702
- DE 19631378 A 19960802
Abstract (en)
[origin: WO9806011A1] In order to optimise half-tone reproduction by optimising toner deposit intensity in electrophotographic printers and copiers, a toner grid is generated on a photoconductor before and during a printing or copying process, once basic values have been set, and the optical density of the toner grid is determined. A bias potential is then lowered with respect to a momentary value when the optical density exceeds a set value and the bias potential is higher than a minimum value. The photoconductor is discharged, cleaned and charged again before returning to the initial state.
IPC 1-7
IPC 8 full level
G03G 15/00 (2006.01)
CPC (source: EP US)
G03G 15/5041 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
WO 9806011 A1 19980212; DE 59708627 D1 20021205; EP 0916113 A1 19990519; EP 0916113 B1 20021030; US 6081677 A 20000627
DOCDB simple family (application)
DE 9701405 W 19970702; DE 59708627 T 19970702; EP 97932732 A 19970702; US 23089899 A 19990601