Image forming apparatus

Details Image forming apparatus Image forming apparatus

1993-01-22

1994-07-12

Moses, R. L.

Photocopying

Contact printing

Light boxes

355260, 222DIG1, G03G 1508

Patent

active

053293401

ABSTRACT:
An image forming apparatus having a first toner container storing a toner to be supplied to a developing device, and a second toner container storing a toner to be supplemented to the first toner container. A first and a second sensor are mounted on the wall of the first toner container at a comparatively high level and a comparatively low level, respectively. When the first sensor senses the absence of the toner, the toner is supplemented from the second toner container to the first toner container. When the second sensor senses the absence of the toner, the toner supplementing ability is increased to increase the amount of toner supplement from the second toner container to the first toner container.

REFERENCES:
patent: 3678896 (1972-07-01), Hewitt
patent: 3752576 (1973-08-01), Gerbasi
patent: 4833501 (1989-05-01), Buyukguclu 222DIG. 1

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