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. 23, 2011
Filed:
Oct. 26, 2006
Michael David Maul, Lexington, KY (US);
James Douglas Gilmore, Lexington, KY (US);
Jennifer Sauer, Goshen, KY (US);
Michael David Maul, Lexington, KY (US);
James Douglas Gilmore, Lexington, KY (US);
Jennifer Sauer, Goshen, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
In an image forming device, the actual speed of a media sheet through a fuser is detected and the fuser speed is controlled so as to maintain a bubble in the media sheet within predetermined limits. A media sheet speed sensor is disposed downstream of the fuser nip. The sensor may be a rotary optical encoder generating a signal comprising a series of pulses, the spacing of the pulses indicative of the speed of at least the leading edge of a media sheet actuating the sensor. Based on the actual speed of the media sheet, the speed of the fuser is adjusted to maintain a desired bubble in the media sheet, when the media sheet is engaged by both the fuser nip and another nip in the media path, such as a toner transfer nip.