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:
Sep. 23, 2011
Hyun-ki Cho, Hanam-si, KR;
Sung-dae Kim, Suwon-si, KR;
Jong-tae Kim, Gwacheon-si, KR;
Dong-hoon Han, Seoul, KR;
Hyun-Ki Cho, Hanam-si, KR;
Sung-Dae Kim, Suwon-si, KR;
Jong-Tae Kim, Gwacheon-si, KR;
Dong-Hoon Han, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
An image forming apparatus is configured to reduce a velocity fluctuation of a rotating body by reducing the AC velocity component of the rotating body. The image forming apparatus may include an image bearing body with a surface on which a toner image is formed; a driving motor configured to drive the image bearing body according to an input signal; and a controller configured to control the driving motor to output a motor output velocity at a period equal to that of an AC velocity component of the image bearing body. A velocity control method for the rotating body includes sampling a continuous motor input signal at a period equal to that of an AC velocity component of a rotating velocity of the rotating body. The sampled signal is transmitted to a driving motor that drives the rotating body, which is driven based upon the discrete motor input signal.