| US 7,356,268 B2 | ||
| Developing device | ||
| Motoyuki Itoyama, Souraku-gun (Japan) | ||
| Assigned to Sharp Kabushiki Kaisha, Osaka (Japan) | ||
| Filed on Jan. 06, 2006, as Appl. No. 11/326,371. | ||
| Claims priority of application No. 2005-034171 (JP), filed on Feb. 10, 2005. | ||
| Prior Publication US 2006/0177235 A1, Aug. 10, 2006 | ||
| Int. Cl. G03G 15/08 (2006.01); G03G 15/00 (2006.01) | ||
| U.S. Cl. 399—30 [399/63; 399/258] | 8 Claims |
| 1. A developing device for developing an electrostatic latent image formed on a photoreceptor with a dual-component developer,
made up of a toner and a carrier while the developer being agitated by an agitating member, comprising:
a toner supply section for supplying the toner;
a toner density detector for detecting the toner density of the developer based on magnetic permeability; and
a fluidity detector for detecting the fluidity of the developer,
characterized in that the output from the toner density detector is corrected based on the detected data from the fluidity
detector, and toner supply from the toner supply section is performed based on the corrected output so as to keep the toner
density constant.
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