Image forming apparatus

Details Image forming apparatus Image forming apparatus

2006-05-23

2006-05-23

Grimley, Arthur T. (Department: 2852)

Electrophotography

Diagnostics

Consumable

C399S030000, C399S058000, C399S062000

Reexamination Certificate

active

07050729

ABSTRACT:
An image forming apparatus includes a latent image forming portion for forming an electrostatic latent image corresponding to image information on an image bearing member, a developing portion, having a developer container for accommodating a developer containing a toner and a carrier, for developing the electrostatic latent image with the toner, and a toner density detecting portion for detecting a toner density in the developer container, a toner replenishment amount to the developer container being controlled in accordance with a result of detection by the toner density detecting portion, wherein a toner replenishment amount target value used for controlling the toner replenishment is controlled to fall within a restriction range, and the restriction range can be changed according to the image information.

REFERENCES:
patent: 5819132 (1998-10-01), Hirobe
patent: 2001/0055497 (2001-12-01), Hasegawa et al.
patent: 2003/0021609 (2003-01-01), Yamaguchi et al.
patent: 2003/0147661 (2003-08-01), Ogata
patent: 2004/0091275 (2004-05-01), Matsuda et al.
patent: 2004/0156648 (2004-08-01), Miyasaka et al.
patent: 2004/0170440 (2004-09-01), Hirobe et al.
patent: 2004/0184826 (2004-09-01), Ozawa et al.
patent: 9-22179 (1997-01-01), None
patent: 9-127780 (1997-05-01), None

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