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:
May. 31, 2011
Filed:
Mar. 13, 2008
Akitomo Kuwabara, Hitachiota, JP;
Tsukasa Onose, Hitachinaka, JP;
Sho Sawahata, Mito, JP;
Yukio Otome, Ibaraki, JP;
Akihiko Yamazaki, Hitachinaka, JP;
Hiroyuki Mabuchi, Hitachinaka, JP;
Akitomo Kuwabara, Hitachiota, JP;
Tsukasa Onose, Hitachinaka, JP;
Sho Sawahata, Mito, JP;
Yukio Otome, Ibaraki, JP;
Akihiko Yamazaki, Hitachinaka, JP;
Hiroyuki Mabuchi, Hitachinaka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus has a photoconductive drum or belt supporting a toner image, a transfer member transferring the toner image onto a recording medium, a transportation device transporting the recording medium to between the photoconductor and the transfer member, a charger charging a surface of the transfer member to the anti-polarity of the electric charge of the toner image, a rotation drive unit rotating the transfer member to the same direction of the recording medium transportation, a contacting/removing unit that contacts the transfer member to the image supported member for printing and removes the transfer member from the image supported member when not printing, and a drive force transferring/blocking unit that transfers the drive force from the rotation drive unit to the transfer member before print starting-up and blocking the drive force during printing.