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:
Jul. 12, 2016
Filed:
Feb. 06, 2015
Mitsufumi Yamamoto, Tokyo, JP;
Natsuko Ishizuka, Kanagawa, JP;
Mitsufumi Yamamoto, Tokyo, JP;
Natsuko Ishizuka, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An image forming apparatus includes a first detection unit configured to output a first detection signal upon detecting a recording medium; a second detection unit configured to output a second detection signal upon detecting the recording medium, which is conveyed from the first detection unit; a signal generation unit configured to generate a substitute signal for the first detection signal in a case where the first detection unit does not output the first detection signal; and a state determination unit configured to determine a state of the image forming apparatus based on the first and second detection signals. The state determination unit determines that the first detection unit is in a failure state upon receiving the second detection signal and the substitute signal, which is input instead of the first detection signal.