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. 21, 2012
Filed:
Jul. 03, 2008
Kohichi Takenouchi, Nara, JP;
Mitsuru Tokuyama, Kyoto, JP;
Kiyofumi Morimoto, Nara, JP;
Hiroo Naoi, Nara, JP;
Kazuma Hinoue, Nara, JP;
Kohichi Takenouchi, Nara, JP;
Mitsuru Tokuyama, Kyoto, JP;
Kiyofumi Morimoto, Nara, JP;
Hiroo Naoi, Nara, JP;
Kazuma Hinoue, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
The change in an output voltage when a control voltage is changed is calculated, and the change in the control voltage divided by the calculated change in the output voltage is defined as a sensitivity coefficient. The sensitivity coefficient is recalculated for each predetermined time interval or whenever a predetermined condition is satisfied, and the control voltage is corrected based on the recalculated sensitivity coefficient. Example of the predetermined condition include the time of start-up of the apparatus, the time at which the accumulated number of printed sheets reaches a predetermined number, and the time of carrying out process control.