Global Patent Index - EP 0109860 A1

EP 0109860 A1 19840530 - Two-component type developer for magnetic brush development.

Title (en)

Two-component type developer for magnetic brush development.

Title (de)

Entwickler vom Zweikomponententyp für Magnetbürstenentwicklung.

Title (fr)

Révélateur du type à deux composants pour le développement à brosse magnétique.

Publication

EP 0109860 A1 19840530 (EN)

Application

EP 83307143 A 19831122

Priority

JP 20355482 A 19821122

Abstract (en)

A two-component type developer (3), suitable for the magnetic brush development of an electrostatic latent image, comprises a mixture of magnetic carrier particles and toner particles (8) chargeable by friction with the magnetic carrier particles, the magnetic carrier being a mixed carrier comprising an iron powder (9) and a particulate ferrite (10) at a weight ratio of iron powder (9): ferrite (10) of from 60:40 to 5:95.

IPC 1-7

G03G 9/14; G03G 13/09

IPC 8 full level

G03G 9/08 (2006.01); G03G 9/107 (2006.01)

CPC (source: EP US)

G03G 9/08 (2013.01 - EP); G03G 9/1075 (2013.01 - EP US); G03G 9/1085 (2020.08 - EP US)

Citation (search report)

Designated contracting state (EPC)

CH DE FR GB LI NL

DOCDB simple family (publication)

EP 0109860 A1 19840530; EP 0109860 B1 19871007; DE 3374032 D1 19871112; JP S5994763 A 19840531

DOCDB simple family (application)

EP 83307143 A 19831122; DE 3374032 T 19831122; JP 20355482 A 19821122