EP 0704767 A1 19960403 - A two-component type developer
Title (en)
A two-component type developer
Title (de)
Entwickler des Zweikomponententyps
Title (fr)
Développateur du type à deux composants
Publication
Application
Priority
- JP 20744794 A 19940831
- JP 20744894 A 19940831
- JP 20741394 A 19940831
- JP 20741494 A 19940831
- JP 20741594 A 19940831
Abstract (en)
The invention provides a two-component type developer including toner and a carrier. The toner particles in the toner includes a binder resin and magnetic powder dispersed in the binder resin. The binder resin is made of a composition including a resin having an anionic group. The magnetic powder is included in the toner particles at a proportion of 0.1 through 5 parts by weight per 100 parts by weight of the binder resin. Each of the carrier particles in the carrier has a core particle and a coating layer covering the core particle, and the core particle is made of a magnetic material represented by the following Formula (A): Formula (A) MOFe2O3 wherein M indicates at least one metal selected from the group consisting of Cu, Zn, Fe, Ba, Ni, Mg, Mn, Al and Co. <IMAGE>
IPC 1-7
IPC 8 full level
G03G 9/083 (2006.01); G03G 9/087 (2006.01); G03G 9/107 (2006.01); G03G 9/113 (2006.01)
CPC (source: EP KR US)
G03G 9/083 (2013.01 - EP); G03G 9/087 (2013.01 - KR); G03G 9/08791 (2013.01 - EP); G03G 9/1075 (2013.01 - EP KR US); G03G 9/108 (2020.08 - EP KR US); G03G 9/1085 (2020.08 - EP KR US); G03G 9/1133 (2013.01 - EP); G03G 9/1135 (2013.01 - EP); G03G 9/1136 (2013.01 - EP); G03G 9/1137 (2013.01 - EP)
Citation (applicant)
- JP H0367268 A 19910322 - HITACHI CHEMICAL CO LTD
- JP S56106249 A 19810824 - FUJITSU LTD
- JP S59162563 A 19840913 - MINOLTA CAMERA KK
Citation (search report)
- [A] EP 0330287 A2 19890830 - MITA INDUSTRIAL CO LTD [JP]
- [A] EP 0357042 A2 19900307 - TDK CORP [JP]
- [A] EP 0334126 A2 19890927 - EASTMAN KODAK CO [US]
- [A] EP 0405503 A2 19910102 - MITA INDUSTRIAL CO LTD [JP]
- [A] EP 0317667 A1 19890531 - AGFA GEVAERT NV [BE]
- [A] PATENT ABSTRACTS OF JAPAN vol. 9, no. 120 (P - 358)<1843> 24 May 1985 (1985-05-24)
Designated contracting state (EPC)
CH DE ES FR GB IT LI
DOCDB simple family (publication)
DOCDB simple family (application)
EP 95305606 A 19950811; KR 19950027435 A 19950830