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. 23, 2016
Filed:
Jun. 16, 2015
Shigeru Tosa, Kanagawa, JP;
Hitoshi Kamoshida, Ibaraki, JP;
Tetsuya Ogawa, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An image forming apparatus includes: an expansion/contraction ratio calculation unit that calculates a value of a ratio of expansion or contraction of a printing medium at a time of printing a second surface as compared with a time of printing a first surface; a storage control unit that causes an NVRAM to hold the calculated value of the ratio of expansion or contraction; and a magnification correcting unit that corrects magnification of an image on the second surface using a newly calculated value of the ratio when a difference between the newly calculated value and a value that has been held by the NVRAM until the new value is calculated is within a predetermined range, and corrects the magnification of the image on the second surface using a value closer to 0 than the newly calculated value when the difference exceeds the predetermined range.