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. 25, 2020
Filed:
Mar. 19, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Takashi Uehara, Kashiwa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A charging bias output portion is controlled so that a direct-current component of a charging bias voltage reaches a target voltage value taking a first set time after output start. A transfer bias output portion is controlled so that output of a transfer bias is started after a first position of an image bearing member reaches a transfer position and before a second position reaches the transfer portion, and a transfer current reaches a target current value taking a second set time. The first position is a position of the image bearing member that passes through a charging portion between a charging member and the image bearing member at a timing when the output of the charging DC is started, and the second position is a position that passes through the charging portion at a timing when the charging DC reaches the target voltage value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile