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:
Aug. 02, 1994
Filed:
Jul. 02, 1993
Kenji Sato, Hachioji, JP;
Naoto Tokutake, Hachioji, JP;
Konica Corporation, Tokyo, JP;
Abstract
An image forming apparatus includes a transfer belt device which transfers a toner image formed on a rotating photosensitive drum onto a recording sheet by providing corona charging from a rear surface of a transferring/conveying belt that is stretched around a driving roller and a driven roller, which conveys the recording sheet. A movable frame supports both ends of the rotational shafts of the driving roller and the driven roller. The movable frame is rotatably supported by a stationary housing of the transfer belt device. The movable frame can oscillate around a bearing section so that both ends of the rotational shaft of the driving roller connected with a driving source are supported. One end of the shaft of the driving roller connected with the driving source is supported by a stationary bearing member of the stationary housing. The other end of the shaft of the driving roller is supported by a movable bearing member which is movably provided in the stationary housing.