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:
Jun. 29, 1993
Filed:
Mar. 30, 1992
Hirohisa Endo, Higashiosaka, JP;
Yasunori Ueno, Itami, JP;
Mita Industrial Co., Ltd., Osaka, JP;
Abstract
A fixing device for an image forming apparatus comprising a heat roller including a hollow roller body and a heater mounted through the roller body. The heater has a plurality of heating portions arranged at equal intervals along the axis thereof. The heater is shifted in the direction opposite to an air flow generated by an exhaust fan with respect to a recording-sheet contact area of the roller body so as to heat the end portion of the roller body located upstream of the air flow sufficiently enough to compensate for the drop of the temperature at the end portion of the recording-sheet contact area located upstream of the air flow cooled below a predetermined temperature by the unheated air flow.