Image forming apparatus having toner replenishment device

Details Image forming apparatus having toner replenishment device Image forming apparatus having toner replenishment device

1995-06-05

1997-06-17

Pendegrass, Joan H.

Electrophotography

Diagnostics

Consumable

399224, 399262, C03G 1508

Patent

active

056406444

ABSTRACT:
An image forming apparatus includes a toner replenishment device which replenishes a specified monocolor toner to a developing unit arranged around a surface of an image carrier, and which is connected to the developing unit. The apparatus further includes a toner amount detector provided in the toner replenishment device, a cover member provided on a toner replenishment opening portion formed in the toner replenishment device in such a manner that the cover member can be opened and closed, and a cover opening mechanism for enabling the cover member to be opened when the detector detects that the level of toner stored in the toner replenishment device is lower than a predetermined value.

REFERENCES:
patent: 5150162 (1992-09-01), Saito

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