Image forming apparatus and image density control method

Electrophotography – Diagnostics – Consumable

Reexamination Certificate

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Reexamination Certificate

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07929873

ABSTRACT:
An image forming apparatus includes an image carrier configured to carry an electrostatic latent image, a developing device configured to develop the electrostatic latent image with a two-component developer including toner and magnetic carrier, a toner supplier configured to supply the toner to the developing device, a toner concentration detector configured to detect toner concentration in the two-component developer inside the developing device, and a controller. The controller is configured to detect first information to determine toner replacement amount in the developing device during a predetermined time period and second information to determine a charge characteristic of the toner in the developing device, change a toner concentration control reference value based on the first information and the second information, and control the toner concentration based on an output from the toner concentration detector and the toner concentration control reference value.

REFERENCES:
patent: 5327196 (1994-07-01), Kato et al.
patent: 2006/0018674 (2006-01-01), Hirata et al.
patent: 2006/0269303 (2006-11-01), Zollner et al.
patent: 2007/0116480 (2007-05-01), Takeuchi et al.
patent: 2008/0205922 (2008-08-01), Tsukada et al.
patent: 2009/0016745 (2009-01-01), Kolb
patent: 2009/0202261 (2009-08-01), Tsukada et al.
patent: 57-136667 (1982-08-01), None
patent: 02-034877 (1990-02-01), None
patent: 09-211911 (1997-08-01), None
patent: 3410198 (2003-03-01), None
patent: 2004-070067 (2004-03-01), None
patent: 2004-151375 (2004-05-01), None
patent: 2005-148368 (2005-06-01), None
patent: 2005-156791 (2005-06-01), None
patent: 2005-274738 (2005-10-01), None
patent: 3871173 (2006-10-01), None
patent: 2007-133235 (2007-05-01), None

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