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:
May. 31, 2016
Filed:
Sep. 14, 2012
Kohji Kuwana, Ibaraki, JP;
Masahiro Mizuno, Ibaraki, JP;
Kohji Kuwana, Ibaraki, JP;
Masahiro Mizuno, Ibaraki, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A control unit allows a rotational position of a tension generating roller to be changed depending on a width of a web at time of the beginning of conveyance of the web, controls a motor according to a detection signal of a second sensor such that a tension guide maintains its position within a predetermined range during conveyance of the web, causes position data at time of keeping the same value of the position data of the motor for a predetermined period to be stored, calculates an initial operational position of the tension generating roller using the position data and a predetermined correction coefficient, and sets the calculated initial operational position as an initial operational position of the tension generating roller at time of the beginning of next conveyance of web.