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. 01, 2014
Filed:
Jul. 08, 2009
Masaharu Furuya, Yokohama, JP;
Katsuhito Haruno, Sagamihara, JP;
Takuya Sekine, Yokohama, JP;
Ryoh Tanoue, Yokohama, JP;
Masakazu Imai, Yokohama, JP;
Masaharu Furuya, Yokohama, JP;
Katsuhito Haruno, Sagamihara, JP;
Takuya Sekine, Yokohama, JP;
Ryoh Tanoue, Yokohama, JP;
Masakazu Imai, Yokohama, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A transfer unit includes a belt member, a bending roller, a transfer section, and a bias application unit. The belt member is extended between rollers and has a movable surface on which a toner image is transferred from an image carrier. The bending roller externally contacts the surface of the belt member to bend the belt member and rotates in conjunction with the belt member. The transfer section includes one of the rollers and a surface moving member. The surface moving member rotates at least one full turn while cleaning is performed on the surface moving member and the bending roller. A surface moving speed of the bending roller is equal to or greater than a surface moving speed of the surface moving member. A circumferential length Lof the surface moving member and a circumferential length Lof the bending roller satisfy L≧L