Image forming apparatus including toner conveyance apparatus

Details Image forming apparatus including toner conveyance apparatus Image forming apparatus including toner conveyance apparatus

1995-11-08

1997-07-15

Grimley, Arthur T.

Electrophotography

Image formation

Development

399119, 399223, G03G 1500, G03G 1501

Patent

active

056488408

ABSTRACT:
An image forming apparatus includes a plurality of toner reservoir for storing different toner, a developing unit composed of a plurality of developing devices, and a plurality of toner conveyors for conveying toner from the toner reservoir to the developing unit. Through-holes are formed in the developing unit, and an upper portion of each through-hole is connected with each toner conveyor in such a manner that an upper opening of each through-hole is opposed to an ejection port of each toner conveyor, so that toner drops from the toner conveyor into through-hole and is guided to each developing device.

REFERENCES:
patent: 4746951 (1988-05-01), Hayakawa et al.
patent: 4928144 (1990-05-01), Kasahara et al.
patent: 5045884 (1991-09-01), Ohira et al.
patent: 5298946 (1994-03-01), Haneda et al.
patent: 5495323 (1996-02-01), Meetze, Jr.
patent: 5537188 (1996-07-01), Haneda

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