Developing apparatus including a partitioning arrangement for pa

Details Developing apparatus including a partitioning arrangement for pa Developing apparatus including a partitioning arrangement for pa

1988-05-06

1991-04-30

Braun, Fred L.

Photocopying

Contact printing

Light boxes

118653, 355260, G03G 1506

Patent

active

050122851

ABSTRACT:
A developing apparatus includes a photosensitive drum positioned in confronting relation to a developing sleeve. A toner accommodating tank is provided for supplying toner to the developing sleeve. The toner accommodating tank is divided into a small chamber and a supplementary chamber which are separated from one another by a partition which permits toner to be supplied from the supplementary chamber to the small chamber but which prevents the return of toner from the small chamber to the supplementary. A movable shutter selectively permits and prevents toner from being supplied from the supplementary chamber to the small chamber in accordance with operation of the apparatus.

REFERENCES:
patent: 3881446 (1975-05-01), Kurita et al.
patent: 4632535 (1986-12-01), Nagata
patent: 4647180 (1987-03-01), Watanabe

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