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:
Feb. 09, 2010
Filed:
Aug. 30, 2007
Naoki Satoh, Yokohama, JP;
Keiichi Sanada, Yokohama, JP;
Takeshi Sano, Kawasaki, JP;
Yoshihisa Ashikawa, Kawasaki, JP;
Tomonori Maekawa, Kawasaki, JP;
Naoki Satoh, Yokohama, JP;
Keiichi Sanada, Yokohama, JP;
Takeshi Sano, Kawasaki, JP;
Yoshihisa Ashikawa, Kawasaki, JP;
Tomonori Maekawa, Kawasaki, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes two AC power input cords to be connected to an AC power source. The image forming apparatus can detect if at least one of the two AC power input cords is not connected to the AC power source. An input voltage detector or a zero-cross signal detector receives an input from the one AC input power cord, and detects a voltage state of connection to the AC power input cord. A controller utilizes signals from the input voltage detector or zero-cross signal detector to detect whether the one AC input power cord is connected to the AC power source. An operator can also be provided an indication if it is determined that the one AC power input cord is not connected to the AC power source.