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:
Sep. 18, 2018
Filed:
Dec. 02, 2015
Canon Finetech Inc., Misato-shi, Saitama, JP;
Yuki Nagahashi, Yokohama, JP;
CANON FINETECH NISCA INC., Saitama, JP;
Abstract
Provided is an image forming apparatus capable of appropriately setting a range of a charging voltage for electrically charging an image bearing member. A charging roller () and a charging power source (S) are configured to apply a voltage between the charging roller () and a photosensitive drum () to electrically charge the photosensitive drum (). A control circuit () is configured to set a voltage for obtaining a predetermined discharge current by the charging roller () with the photosensitive drum (). The control circuit () is configured to determine, depending on a state of a resistance acting on an electric current flowing between the charging roller () and the photosensitive drum (), at least one of an upper limit or a lower limit of the voltage set by the control circuit ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile