Image forming apparatus having function to control developer...

Details Image forming apparatus having function to control developer... Image forming apparatus having function to control developer...

2011-07-19

2011-07-19

Porta, David P (Department: 2884)

Electrophotography

Diagnostics

Consumable

C399S053000, C399S264000, C399S360000

Reexamination Certificate

active

07983576

ABSTRACT:
An image forming apparatus to form image data on a printing medium, the apparatus includes a developing cartridge having a developer transfer body to transfer developer to an image receptor, a developer storing unit to separately store a transfer-regulated developer which has been transfer-regulated in the developer transfer body and a non-transferred developer which is not transferred to the developer transfer body, and a used developer storing unit to store a used developer separated from a surface of the photoreceptor; a printing information storing unit to store cartridge printing information of the developing cartridge; and a controller to calculate an average printing density on a basis of the cartridge printing information, and to control the developing cartridge so that an amount in which the transfer-regulated developer of the developer storing unit is transferred to the used developer storing unit can exceed a reference amount if the calculated average printing density is below a reference printing density.

REFERENCES:
patent: 6904255 (2005-06-01), Kera et al.
patent: 2003/0053809 (2003-03-01), Ogata et al.
patent: 2006/0029405 (2006-02-01), Tanaka et al.
patent: 2001-242766 (2001-09-01), None
patent: 2005-63095 (2005-06-01), None
patent: 2006-31972 (2006-04-01), None
patent: 2006-62922 (2006-06-01), None

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