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:
Sep. 05, 2017
Filed:
Jun. 09, 2016
Image forming apparatus with controller to reduce attachment of development agent to transfer roller
Yasuko Yoshikawa, Kanagawa, JP;
Junichi Mizawa, Kanagawa, JP;
Ichiro Komuro, Tokyo, JP;
Shuuichi Endoh, Saitama, JP;
Yohsuke Saitoh, Tokyo, JP;
Toru Ohmine, Kanagawa, JP;
Kenji Sato, Kanagawa, JP;
Masato Mukai, Kanagawa, JP;
Yasuko Yoshikawa, Kanagawa, JP;
Junichi Mizawa, Kanagawa, JP;
Ichiro Komuro, Tokyo, JP;
Shuuichi Endoh, Saitama, JP;
Yohsuke Saitoh, Tokyo, JP;
Toru Ohmine, Kanagawa, JP;
Kenji Sato, Kanagawa, JP;
Masato Mukai, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes an image bearer to bear a latent electrostatic image thereon, a developing device to supply a development agent to the latent electrostatic image to obtain a visible image, a transfer roller to contact the image bearer to transfer the visible image to a recording medium, a replenishing device to replenish the developing device with the development agent when a density value read from a density detection pattern formed on the image bearer by the developing device is equal to or less than a threshold, a processing device to conduct a predetermined processing to reduce attachment of the development agent to the transfer roller, and a control device to control the number of times the predetermined processing is performed or processing time in performing the predetermined processing for the processing device, based on whether there is replenishment of the development agent to the developing device.