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:
Oct. 29, 2019

Filed:

Apr. 27, 2018
Applicant:

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

Inventors:

Takashi Fujiwara, Tokyo, JP;

Jun Onishi, Hino, JP;

Masahito Takano, Koganei, JP;

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01); G03G 15/00 (2006.01); G03G 15/16 (2006.01); H04N 1/56 (2006.01); H04N 1/50 (2006.01);
U.S. Cl.
CPC ...
G03G 15/2028 (2013.01); G03G 15/55 (2013.01); G03G 15/602 (2013.01); G03G 15/607 (2013.01); H04N 1/56 (2013.01); G03G 15/1615 (2013.01); G03G 15/5004 (2013.01); G03G 2215/2045 (2013.01); G03G 2221/1657 (2013.01); H04N 1/506 (2013.01);
Abstract

An image forming apparatus includes: a driving roller that conveys a paper sheet; a detector that detects a desired point on the driving roller; and a hardware processor that: acquires a waveform signal indicating one of a change in an image forming position with respect to the paper sheet and a change in a sheet conveyance velocity; extracts a synchronous waveform signal from the waveform signal acquired by the hardware processor, the synchronous waveform signal being synchronized with one revolution of the driving roller, the one revolution being detected by the detector; and inputs a drive signal to a drive source of the driving roller, the drive signal being input to weaken an amplitude of the synchronous waveform signal extracted by the hardware processor.


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