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:
Jun. 20, 2023

Filed:

Jan. 20, 2022
Applicant:

Fujifilm Business Innovation Corp., Tokyo, JP;

Inventor:

Takashi Hoshino, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 15/16 (2006.01); G03G 15/01 (2006.01);
U.S. Cl.
CPC ...
G03G 15/1615 (2013.01); G03G 15/0136 (2013.01); G03G 2215/1614 (2013.01); G03G 2215/1623 (2013.01);
Abstract

An image forming apparatus includes: an annular transfer belt to which an image is transferred; a transfer roller that transfers an image to a recording medium when the recording medium passes through a transfer area formed between the transfer roller and the transfer belt; a drive mechanism that causes the transfer roller to rotate; and a speed adjustment mechanism that adjusts a rotational speed of the transfer roller achieved by the drive mechanism in units of a cycle of the transfer roller, and switches between a first adjustment pattern and a second adjustment pattern to execute switched adjustment pattern in a cycle including a state in which the transfer roller transports the recording medium, the first adjustment pattern for adjusting the rotational speed of the transfer roller, the second adjustment pattern for adjusting the rotational speed of the transfer roller with a pattern different from the first adjustment pattern.


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