Global Patent Index - EP 1093028 A1

EP 1093028 A1 2001-04-18 - Dry toner particles having controlled charging properties

Title (en)

Dry toner particles having controlled charging properties

Title (de)

Trockentonerteilchen mit kontrollierten Ladungseigenschaften

Title (fr)

Particules de révélateur sèches aux propriétés de chargement contrôlées

Publication

EP 1093028 A1 (EN)

Application

EP 00308725 A

Priority

  • EP 00308725 A
  • EP 99203323 A

Abstract (en)

Dry toner particles containing both a charge control agent (CCA) and a charge limitation agent (CLA). Preferably the CLA is a meso-ionic compound. The particles exhibit an acceptable speed of triboelectric charging, a narrow charge distribution and a charge stability that is retained for long printing times.

IPC 1-7 (main, further and additional classification)

G03G 9/097

IPC 8 full level (invention and additional information)

G03G 9/097 (2006.01)

CPC (invention and additional information)

G03G 9/09758 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1093028 A1 20010418

INPADOC legal status


2002-07-31 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20011019

2002-02-28 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2002-01-09 [AKX] PAYMENT OF DESIGNATION FEES

2001-04-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-04-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI