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. 07, 2021
Filed:
Oct. 07, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Kohei Makisumi, Shizuoka, JP;
Kaname Watariguchi, Kanagawa, JP;
Fumiyuki Hiyama, Shizuoka, JP;
Kazuhiro Yamauchi, Shizuoka, JP;
Yuichi Kikuchi, Shizuoka, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided is a process cartridge in which lateral running is suppressed while satisfactory potential fluctuation is maintained. The process cartridge includes: an electrophotographic photosensitive member including a support, a lowermost layer, and a photosensitive layer; and a charging member including a support and a conductive layer. In a case where a maximum frequency at which a phase of an impedance reaches 45°, when the impedance is measured by applying an AC voltage to the lowermost layer while changing the AC voltage, is represented by f(Hz), and in a case where a maximum frequency at which a phase of an impedance reaches 45°, when the impedance is measured by applying an AC voltage to the charging member while changing the AC voltage, is represented by f(Hz), the fand the feach have a value within a certain range.