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:
Apr. 24, 2018
Filed:
Jan. 23, 2017
Brother Kogyo Kabushiki Kaisha, Nagoya, Aichi, JP;
Shota Iriyama, Toyokawa, JP;
Kengo Yada, Seki, JP;
Yuichi Matsushita, Nagoya, JP;
Chieko Mimura, Nagoya, JP;
Hiroshige Hiramatsu, Inuyama, JP;
Hotaka Kakutani, Kiyosu, JP;
BROTHER KOGYO KABUSHIKI KAISHA, Nagoya, Aichi, JP;
Abstract
An image forming apparatus includes a photosensitive member, a charger, a developing device, a transfer device, a scraper, and a controller. The controller performs an image formation process to form the developer image on the photosensitive member by using the developing device. The controller acquires, as a first value, at least one of a value of the charging current flowing in the charger and a value of the transferring current flowing in the transfer device. The controller calculates an accumulation current value by using result of an integral of a second value over time. The second value is an absolute value of the first value. The controller performs a scraping process in which the scraper scrapes the photosensitive member when the accumulation current value reaches a threshold value.