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. 20, 2005
Filed:
Aug. 28, 2003
Akira Kato, Shizuoka, JP;
Takeshi Sugita, Shizuoka, JP;
Atsushi Wada, Shizuoka, JP;
Tatsubumi Mizuno, Shizuoka, JP;
Satoshi Nishida, Shizuoka, JP;
Akira Kato, Shizuoka, JP;
Takeshi Sugita, Shizuoka, JP;
Atsushi Wada, Shizuoka, JP;
Tatsubumi Mizuno, Shizuoka, JP;
Satoshi Nishida, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus has sufficient fixing stability and load capacity and being free of sheet jamming and poor image formation. An image forming apparatus includes a transfer voltage applying section for applying a voltage to a transfer section; a transfer current detector for detecting the transfer current flowing through the transfer section; a fixing section for fixing the toner image to fixing position at a predetermined temperature; and a size detector for detecting the size of the recording material. The transfer voltage applying section applies a predetermined transfer voltage, while the recording material passes through the transfer section, so that the transfer current is kept a constant current. When the predetermined transfer voltage is lower than a threshold voltage and the size of the recording material is larger than the predetermined size, the fixing section fixes the toner image at a temperature which is lower than the predetermined temperature.