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:
Jan. 02, 2018
Filed:
Sep. 23, 2016
Natsumi Matsue, Kanagawa, JP;
Akira Yoshida, Tokyo, JP;
Akio Kosuge, Kanagawa, JP;
Yoichi Sakurai, Kanagawa, JP;
Yuuichiroh Uematsu, Kanagawa, JP;
Keiko Matsumoto, Kanagawa, JP;
Natsumi Matsue, Kanagawa, JP;
Akira Yoshida, Tokyo, JP;
Akio Kosuge, Kanagawa, JP;
Yoichi Sakurai, Kanagawa, JP;
Yuuichiroh Uematsu, Kanagawa, JP;
Keiko Matsumoto, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes a rotatable image bearer, a toner image forming device, an image reader, and a control unit. The toner image forming device forms a test toner image on the image bearer. The image reader reads the test toner image and a predetermined reference member. The control unit calculates an amount of toner contained in the test toner image based on image data from the test toner image. Based on image data from the reference member, the control unit selects a position of a pixel to be used for calculation of the amount of toner contained in the test toner image from pixels included in the image data from the reference member, to calculate the amount of toner contained in the test toner image from data of a pixel located at the position thus selected among pixels included in the image data from the test toner image.