Developing apparatus

Photocopying – Including fiber optics

Patent

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Details

355 3R, 355 14D, 118658, 430122, G03G 1508

Patent

active

046609580

ABSTRACT:
A developing apparatus includes a developer supply container, having an opening, for containing a non-magnetic developer and magnetic particles, an endlessly movable developer carrying member of a non-magnetic material for carrying a developer, which is movable between an inside of the developer supply container and an outside of the developer supply container through the opening, a magnetic particle confining member, provided to an outer surface of the developer carrying member with a gap, a magnet for generating a fixed magnetic field, having a magnetic pole disposed inside of the carrying member and upstream of the confining member with respect to movement of the carrying member, and a magnet, disposed outside of the carrying member and downstream of the confining member with respect to movement of the carrying member, for forming a line of magnetic force extending therefrom to the confining member.

REFERENCES:
patent: 4226525 (1980-10-01), Sakamoto et al.
patent: 4244322 (1981-01-01), Nomura et al.
patent: 4373798 (1983-02-01), Tsukada et al.
patent: 4406535 (1983-09-01), Sakamoto et al.
patent: 4435065 (1984-03-01), Wada
patent: 4466728 (1984-08-01), Schlageter et al.
patent: 4478505 (1984-10-01), Tashiro
patent: 4491161 (1985-01-01), Tamura et al.
patent: 4511239 (1985-04-01), Kanbe et al.

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