The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2008
Filed:
Feb. 27, 2006
Kouichi Takenouchi, Tenri, JP;
Mitsuru Tokuyama, Soraku-gun, JP;
Hiroo Naoi, Nara, JP;
Kiyofumi Morimoto, Tenri, JP;
Kouichi Takenouchi, Tenri, JP;
Mitsuru Tokuyama, Soraku-gun, JP;
Hiroo Naoi, Nara, JP;
Kiyofumi Morimoto, Tenri, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
The developing device according to the present invention includes a developing tank for containing two-component developer, a toner density sensor, and a toner cartridge. Further, the developing device according to the present invention includes a control section for inputting, to the toner density sensor, a control voltage (Vc) for correcting a sensor output. The control section sets the control voltage (Vc), by using a standard control voltage having been set so as to correspond to each of the stirring velocities, so that a sensor output (Vo) has a value within a range indicative of predetermined toner density. With the arrangement, it is possible to set the toner density sensor so that the toner density sensor operates in the most suitable manner so as to correspond to each of the stirring velocities, thereby realizing a developing device capable of detecting toner density with high accuracy.