Developer supply system for dry process electrophotographic reco

Details Developer supply system for dry process electrophotographic reco Developer supply system for dry process electrophotographic reco

1984-11-26

1986-12-16

Marcus, Stephen

Photocopying

Including fiber optics

141106, 222DIG1, G03G 2100

Patent

active

046293094

ABSTRACT:
A developer supply system for a dry process electrophotographic copier supplies a single component or dual component type developer to a developing unit. After a used developer has been discharged from the developing unit, a fresh charge of carrier is supplied to the developing unit and, then, a fresh charge of toner to be mixed with the fresh carrier. A circuit is provided for controlling such a sequence. Independent cylindrical cartridges are allocated to the toner of the single composition developer and to the toner and carrier of the dual composition developer. Each of the cartridges is received in a cylindrical cartridge. The cartridge casing is mounted in a hopper casing associated with the developing unit and is driven for rotation therein.

REFERENCES:
patent: 3618826 (1971-11-01), Kangas
patent: 3958878 (1976-05-01), Smith et al.
patent: 4218126 (1980-08-01), Takeichi
patent: 4226525 (1980-10-01), Sakamoto et al.

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