Toner supplying method, toner supplying device, developing...

Details Toner supplying method, toner supplying device, developing... Toner supplying method, toner supplying device, developing...

2007-02-01

2010-02-23

Royer, William J (Department: 2852)

Electrophotography

Diagnostics

Consumable

C399S258000

Reexamination Certificate

active

07668470

ABSTRACT:
A toner supplying device includes: a toner density sensor for detecting a density of toner contained in a developer tank; a toner hopper for supplying toner to the developer tank; a toner cartridge for supplying toner to the toner hopper; and a control section, when a request to supply toner to the developer tank is made in accordance with a signal detected by the toner density sensor, for controlling a hopper driving motor and a cartridge driving motor so that (i) the toner hopper supplies toner to the developer tank and (ii) the toner cartridge supplies toner to the toner hopper. Thus, in a structure having first and second toner supplying sections disposed on top of each other, toner can be stably supplied to a developer tank.

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