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:
Jun. 06, 2006
Filed:
Jun. 10, 2005
Masaki Ojima, Shizuoka, JP;
Masahide Kinoshita, Shizuoka, JP;
Motoki Adachi, Shizuoka, JP;
Masao Uyama, Shizuoka, JP;
Kazuhiro Okubo, Shizuoka, JP;
Masaki Ojima, Shizuoka, JP;
Masahide Kinoshita, Shizuoka, JP;
Motoki Adachi, Shizuoka, JP;
Masao Uyama, Shizuoka, JP;
Kazuhiro Okubo, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a photosensitive drum, a charging roller, a transfer roller, and a toner charging brush, wherein the toner charging brush reciprocates in a longitudinal direction of the photosensitive drum. In the image forming apparatus, when a number of rotations per a unit time of the image bearing member is assumed to be 'a' and a number of times of reciprocation per unit time of the toner charging brush is assumed to be 'b' assuming that R=b/a, R is set to be in a range of 1/25≦R≦3. However, R=m/n (m and n are integers of 5 or less) is excluded. Consequently, generation of a periodic attachment pattern appearing on the photosensitive drum is eliminated.