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:
Jan. 06, 2015
Filed:
Jun. 19, 2012
Tomokazu Takeuchi, Tokyo, JP;
Hiroyoshi Haga, Kanagawa, JP;
Yasunobu Shimizu, Kanagawa, JP;
Hiromi Ogiyama, Tokyo, JP;
Kenji Sengoku, Kanagawa, JP;
Junpei Fujita, Kanagawa, JP;
Shinya Tanaka, Kanagawa, JP;
Tomokazu Takeuchi, Tokyo, JP;
Hiroyoshi Haga, Kanagawa, JP;
Yasunobu Shimizu, Kanagawa, JP;
Hiromi Ogiyama, Tokyo, JP;
Kenji Sengoku, Kanagawa, JP;
Junpei Fujita, Kanagawa, JP;
Shinya Tanaka, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
An image forming apparatus includes a transfer unit configured to transfer a toner image onto a recording medium; a power supply unit configured to apply one of a superimposed voltage in which an alternating-current voltage and a first direct-current voltage are superimposed and a second direct-current voltage to the transfer unit; and a power supply control configured to, when the power supply unit outputs the superimposed voltage, instruct the power supply unit to output the first direct-current voltage at a first timing, and, when the power-supply unit outputs the second direct-current voltage, instruct the power-supply unit to output the second direct-current voltage at a second timing which is later than the first timing.