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:
Dec. 28, 2010
Filed:
Nov. 16, 2007
Mitsuru Tokuyama, Kizugawa, JP;
Kouichi Takenouchi, Tenri, JP;
Hiroo Naoi, Nara, JP;
Kiyofumi Morimoto, Tenri, JP;
Kazuma Hinoue, Yamatokoriyama, JP;
Mitsuru Tokuyama, Kizugawa, JP;
Kouichi Takenouchi, Tenri, JP;
Hiroo Naoi, Nara, JP;
Kiyofumi Morimoto, Tenri, JP;
Kazuma Hinoue, Yamatokoriyama, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An image forming apparatus includes a toner image forming section including a developing device having a developer tank for storing a two-component developer, a transfer section, a fixing section, a recording medium feeding section, and a discharging section. The image forming apparatus further includes a toner concentration detecting section for detecting the toner concentration in the developer tank, a printing speed switching section, a toner concentration calculating section for correcting a detection result obtained by the toner concentration detecting section according to a speed of printing to calculate the toner concentration, and a toner replenishment control section for replenishing the toner into the developer tank according to a calculation result by the toner concentration calculating section.