Image forming apparatus and treatment thereof

Details Image forming apparatus and treatment thereof Image forming apparatus and treatment thereof

2007-09-11

2007-09-11

Ngo, Hoang (Department: 2852)

Electrophotography

Diagnostics

Consumable

C399S029000, C399S257000

Reexamination Certificate

active

11080611

ABSTRACT:
An image forming apparatus includes a toner forced discharge treatment for executing a toner discharge mode in which toner inside a developing device is forcedly consumed, and a toner discharge judgment treatment capable of judging necessity of execution of the toner discharge mode based on a decision as to whether or not a toner state inside the developing device is in a state of leading to an image quality defect. Further, the apparatus includes a toner forced supply treatment for executing a toner supply mode in which new toner is supplied from a toner replenishment device to the developing device in addition to execution of the toner discharge mode.

REFERENCES:
patent: 7085506 (2006-08-01), Forbes et al.
patent: 2000-206744 (2000-07-01), None

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