Image forming apparatus

Details Image forming apparatus Image forming apparatus

2007-05-15

2007-05-15

Ngo, Hoang (Department: 2852)

Electrophotography

Diagnostics

Consumable

C399S044000, C399S049000, C399S060000, C399S062000

Reexamination Certificate

active

11076925

ABSTRACT:
An image forming apparatus includes an image forming portion, a developing apparatus, a developer density detection portion, an image density detection portion, an environment detection portion, and a developer replenishing apparatus. The image forming apparatus further includes a control portion for performing a replenishing operation of the developer replenishing apparatus. The control portion also performs an image density control for controlling an electrostatic image forming condition of the image forming portion. When a detection result by the environment detection portion is changed by a predetermined value or the replenishment developer is renewed, the image forming apparatus advances to a mode of performing the image density control, while performing the replenishing operation by developer replenishing apparatus based on the detection result of the developer density detecting portion.

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