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.

Date of Patent:
May. 09, 2017

Filed:

May. 08, 2014
Applicant:

Konica Minolta, Inc., Chiyoda-ku, JP;

Inventors:

Jun Onishi, Hino, JP;

Masahito Takano, Koganei, JP;

Takashi Fujiwara, Hachioji, JP;

Assignee:

KONICA MINOLTA, INC., Chiyoda-Ku, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/01 (2006.01); G03G 15/16 (2006.01); G03G 21/14 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/1615 (2013.01); G03G 15/505 (2013.01); G03G 15/5008 (2013.01); G03G 15/5054 (2013.01); G03G 15/5058 (2013.01); G03G 21/14 (2013.01); G03G 21/145 (2013.01); G03G 2215/00599 (2013.01); G03G 2215/0129 (2013.01); G03G 2215/0158 (2013.01);
Abstract

An image forming apparatus includes upstream-side and downstream-side detection parts and a control section. The detection parts are disposed on a moving path of an intermediate transfer belt or a conveyor belt and detect a speed of the belt. The control section performs control to correct color misregistration of images composed of colors to be formed on the intermediate transfer belt or a recording medium conveyed by the conveyance belt on the basis of the detection result. The control unit calculates a difference between the speed detected by the upstream-side detection part and the speed detected by the downstream-side detection part after a predetermined time elapses since the upstream-side detection part detects the speed and performs the control on the basis of the difference. The predetermined time is obtained by dividing a distance between the detection parts by a target speed of the belt.


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