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. 13, 1991
Filed:
Aug. 21, 1990
Naohisa Kinoshita, Nagoya, JP;
Hiroyuki Kashima, Nagoya, JP;
Makoto Hasegawa, Nagoya, JP;
Toshihiro Tsuzuki, Kariya, JP;
Kiyoshi Muto, Yokkaichi, JP;
Abstract
Disclosed is a fixing apparatus wherein a print medium having an image transferred thereto is conveyed by rollers provided with a heat source, whereby the transferred image is fixed to the print medium. At least one of the fixing rollers has a hollow section in which the heat source is disposed toward the side at which the print medium is held and upstream with regard to the direction of rotation of the roller. The fixing apparatus comprises a detector for detecting the temperature at or in the vicinity of the heat source; an operating circuit for operating the heat source when the detected temperature is lower than a required temperature; a device for notifying an operator that the temperature of the fixing apparatus has reached a temperature required for the fixing operation; and a timer which starts to count from the start of operation of the heat source. When the required temperature is reached, the timer is reset, and when operation of the heat source is restarted, the timer starts to count again. The notification by the notifying device is continued regardless of the temperature, and is stopped when the count of the timer reaches a predetermined value.