Image-forming machine with toner recycling and toner replenish c

Details Image-forming machine with toner recycling and toner replenish c Image-forming machine with toner recycling and toner replenish c

1995-01-09

1998-02-10

Braun, Fred L.

Electrophotography

Diagnostics

Consumable

399 63, 399105, 399120, G03G 1508, G03G 2100

Patent

active

057179735

ABSTRACT:
An image-forming machine has a developing device that includes a developing agent container for containing a developing agent with toner and carrier particles, and a developing agent application device for applying the developing agent onto an image carrier device. The developing device also includes a toner replenishing device for replenishing the developing agent container with toner, a toner concentration detection device for detecting toner concentration of the developing agent, and a toner replenish control device. The toner replenish control device controls the toner replenishing device by comparing a value detected by the toner concentration detection device with a threshold value.

REFERENCES:
patent: 4963929 (1990-10-01), Ueda et al.
patent: 5005517 (1991-04-01), Fukui et al.
patent: 5049938 (1991-09-01), Ueda
patent: 5283616 (1994-02-01), Numogami et al.
patent: 5493382 (1996-02-01), Takagaki et al.
Abstract for Japanese Publication No. JP-A-59 128566.
Abstract for Japanese Publication No. JP-A-03 025470.

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