Toner replenishing device, for use in an electrophotographic app

Details Toner replenishing device, for use in an electrophotographic app Toner replenishing device, for use in an electrophotographic app

1997-08-07

1999-06-29

Grimley, Arthur T.

Electrophotography

Image formation

Development

399260, 399262, G03G 1508

Patent

active

059180943

ABSTRACT:
A toner replenishing device has a hopper for storing toner. The hopper has an L-shaped so as to have a large volume in a lateral direction, thereby ensuring that the hopper has the volume corresponding to several toner containers. The toner stored in a lower portion of the hopper is transported by toner transport devices to the vicinity of a toner supply opening provided on the tip of the hopper. The remaining amount of toner is detected by sensors that detect the amount of toner remaining in the toner replenishing device step-by-step. This results in a toner replenishing device having a large toner storage section (1) in which the aggregation of toner due to dead weight can be prevented and (2) in which the amount of toner remaining can be displayed step-by-step and the supply of toner can be carried out in advance before a shortage of toner occurs.

REFERENCES:
patent: 4133459 (1979-01-01), Forward
patent: 5172168 (1992-12-01), Satoh et al.
patent: 5329340 (1994-07-01), Fukuchi et al.
patent: 5606403 (1997-02-01), Kikuchi et al.
patent: 5621507 (1997-04-01), Nishimura et al.

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