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:
Feb. 20, 2018
Filed:
Sep. 13, 2016
Yuka Kanatani, Kanagawa, JP;
Yuushi Hirayama, Shizuoka, JP;
Kazufumi Kimura, Kanagawa, JP;
Ryota Kidera, Tokyo, JP;
Masanori Moro, Kanagawa, JP;
Yoshihiro Fujiwara, Kanagawa, JP;
Hideyasu Seki, Chiba, JP;
Yuka Kanatani, Kanagawa, JP;
Yuushi Hirayama, Shizuoka, JP;
Kazufumi Kimura, Kanagawa, JP;
Ryota Kidera, Tokyo, JP;
Masanori Moro, Kanagawa, JP;
Yoshihiro Fujiwara, Kanagawa, JP;
Hideyasu Seki, Chiba, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes a photoconductor on which an electrostatic latent image is formed by irradiation of the photoconductor with light, a charger, a developing device, a transfer device, a charge removal execution determiner, and a power supply controller. The charger receives a superimposed voltage of a DC voltage and an AC voltage to charge the photoconductor. The developing device develops the electrostatic latent image on the photoconductor into a toner image. The transfer device transfers the developed toner image to a recording medium. The charge removal execution determiner issues a charge removal command when a flow of electric charge from the transfer device into the photoconductor has occurred in an image forming outputting operation. The power supply controller applies only the AC voltage to the charger for a predetermined period in a state in which the photoconductor is rotated, when the charge removal command is issued.