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:
Apr. 15, 2014
Filed:
Aug. 16, 2011
Kentarou Kawata, Suntou-gun, JP;
Motoki Adachi, Ashigarakami-gun, JP;
Takayuki Kanazawa, Suntou-gun, JP;
Masanori Tanaka, Mishima, JP;
Shunsuke Mizukoshi, Mishima, JP;
Kentarou Kawata, Suntou-gun, JP;
Motoki Adachi, Ashigarakami-gun, JP;
Takayuki Kanazawa, Suntou-gun, JP;
Masanori Tanaka, Mishima, JP;
Shunsuke Mizukoshi, Mishima, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a rotary-type image forming apparatus in which detection of electrostatic capacitance is performed when a developing apparatus is in a posture less affected by a toner density within the developing apparatus, a toner in the developing apparatus, which is located at a development position during the detection of the electrostatic capacitance, is avoided from being uselessly consumed. The image forming apparatus has a remaining amount detection mode of detecting a toner remaining amount on condition that a developing roller of one developing apparatus positioned opposite to another developing apparatus, for which the toner remaining amount is to be detected, stands by in a state spaced from a drum.