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:
Nov. 13, 2018
Filed:
Jul. 01, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Toshiya Fukazawa, Tokyo, JP;
Yutaka Koga, Kashiwa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a cleaning unit for a transfer roller. A cleaning unit includes a brush roller, a rotatable member, a first blade and a second blade. The brush roller is electroconductive and contactable with the transfer roller while rotating to electrostatically attract the toner from the transfer roller. The rotatable member is supplied with a voltage of the regular charge polarity of the toner and is contacted with the brush roller in a contact position to electrostatically attract the toner from the brush roller. The first blade contacts the rotatable member in a cleaning portion to scrape a deposited matter from the rotatable member. The second blade is disposed downstream of the cleaning portion and upstream of the contact portion and scrape the deposited matter from the rotatable member with the rotation of the rotatable member.