Toner end detecting method for an electrophotographic copier

Details Toner end detecting method for an electrophotographic copier Toner end detecting method for an electrophotographic copier

1991-11-29

1993-01-26

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355 77, 355208, G03G 2100

Patent

active

051826003

ABSTRACT:
A toner end detecting method for an electrophotographic copier which allows the copier to operate even when a toner end condition is detected by accident or when a developing device included in the copier and being used is replaced with another storing a toner of the same color while a toner end condition is not reached. When the power source of the copier is turned off and then on or when the developing device is set on the copier, the method executes a recovery procedure.

REFERENCES:
patent: 4801980 (1989-01-01), Arai et al.
patent: 4833506 (1989-05-01), Kuru et al.
patent: 5005517 (1991-04-01), Fukui et al.
patent: 5006896 (1991-04-01), Koichi et al.
patent: 5035198 (1991-07-01), Niito
patent: 5095331 (1992-03-01), Takano

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