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:
Dec. 06, 2011
Filed:
Jan. 05, 2009
Hitoshi Hayamizu, Osaka, JP;
Hitoshi Hayamizu, Osaka, JP;
Kyocera Mita Corporation, Osaka, JP;
Abstract
An image forming device includes: a fixing portion including a nip that is formed between a heat roller and a back-up roller pressurized by a pressurizing mechanism and holds and conveys a toner-bearing sheet; a pressure switching mechanism for changing a pressurizing force of the pressurizing mechanism; and a sheet detecting portion for detecting a sheet conveyed to the fixing portion. The sheet detecting portion changes a state of sheet detection by the sheet detecting portion in tandem to operation of the pressure switching mechanism. The image forming device includes a pressurization state determining portion for determining a state of pressurization of the pressurizing mechanism on the basis of an output of the sheet detecting portion for a sheet non-passing time, and a pressurization state display portion for displaying the pressurization state determined by the pressurization state determining portion.