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:
Sep. 27, 1994
Filed:
Apr. 17, 1992
Junichi Matsuno, Toride, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An electrophotographic apparatus has a heat-resistant endless belt having a portion which runs from a transfer position to a heat-fixing position, a driving drum for driving the endless belt, a transfer roller for transferring, at the transfer position, a toner image of information to be recorded from a photosensitive drum to the endless belt, a recording medium feed roller for feeding a sheet-type recording medium to the heat-fixing position, and a heater and a pressure roller which are disposed in the heat-fixing position and cooperative to transfer the toner image from the endless belt to the recording medium. The heater is disposed on the inner side of a loop of the endless belt, while the pressure roller is disposed outside the loop. The photosensitive drum, endless belt, transfer roller and heater are mounted on a common frame which is demountable from the frame of the apparatus. The pressure roller is mounted on the apparatus frame so as to be movable towards and away from the endless belt, thereby facilitating mounting and demounting of the common frame.