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:
Aug. 12, 2008
Filed:
Nov. 02, 2005
Myung-kook Ahn, Suwon-si, KR;
Myung-kook Ahn, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
An apparatus and method for cleaning a transfer roller of a wet-type image forming apparatus are provided. The method includes applying a measured voltage to the transfer roller; measuring a resistance among a transfer backup roller, an intermediate transfer medium, and the transfer roller based on the applied measured voltage; calculating a density of a toner of a developer on the transfer roller based on the measured resistance; and if the density of the toner is more than or equal to a predetermined reference value, supplying a carrier or applying the cleaning voltage. Thus, the cleaning voltage can be adjusted depending on the density of the toner of the developer on the transfer roller so as to maintain appropriate cleaning efficiency. If the density of the toner is greater than or equal to the predetermined reference value, the carrier can be supplied so as to improve the cleaning efficiency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile