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. 10, 2013
Filed:
Aug. 18, 2011
Tomohiro Maeda, Oasaka, JP;
Tomohiro Maeda, Oasaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A fixing device includes a laser light source for irradiating an unfixed toner image formed on a recording sheet, and melts a toner by light from the laser light source to fix the toner image on the recording sheet. Here, where a conveyance speed of the recording sheet is p, a length of a light irradiation area in a conveyance direction of the recording sheet is q, time during which the toner of the unfixed image is subjected to light during conveyance is r, and energy per unit area given to the toner of the unfixed image is J, light output of the laser light source is controlled so that the energy during a constant time rfrom the start of a time r is differentiated from the energy during a time runtil the end of the time r after the elapse of the r