Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1990-08-10
1993-05-18
McCamish, Marion E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430108, 430110, 430137, G03G 908, G03G 900
Patent
active
052120384
ABSTRACT:
Disclosed are a two-component type developer for use in the electrophotography or electrostatic printing, which comprises a magnetic carrier and a toner, and a process for the preparation thereof. This developer has a dynamic resistivity (Rd) lower than the dynamic resistivity (Rc) of the magnetic carrier. This developer is prepared by mixing a toner with a magnetic carrier so that the dynamic resistivity (Rd) of the formed developer is lower than the dynamic resistivity (Rc) of the magnetic carrier. This developer is capable of realizing an excellent reproducibility of a fine line image and a high density of a solid image area simultaneously.
REFERENCES:
patent: 4254203 (1981-03-01), Oka et al.
patent: 4284702 (1981-08-01), Tabuchi et al.
patent: 4345015 (1982-08-01), Hendriksma et al.
patent: 4526851 (1985-07-01), Boughton et al.
patent: 5032482 (1991-07-01), Kinoshita et al.
Kuramae Yoshihisa
Kuroki Mitsushi
Oyama Katsumi
Tsubota Noriaki
Watanabe Akihiro
Crossan Stephen C.
McCamish Marion E.
Mita Industrial Co. Ltd.
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