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:
Oct. 18, 2022
Filed:
Sep. 17, 2021
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Masaaki Furukawa, Nagoya, JP;
Takashi Shimizu, Nagoya, JP;
Shinya Kusuda, Nagoya, JP;
Tomitake Aratachi, Toyokawa, JP;
Yasuo Fukamachi, Nagoya, JP;
Keita Shimizu, Nagoya, JP;
Kazutoshi Nakamura, Kuwana, JP;
Kouichi Sugimoto, Nagakute, JP;
BROTHER KOGYO KABUSHIKI KAISHA, Nagoya, JP;
Abstract
An image forming apparatus includes: a casing having an opening; a developing cartridge configured to accommodate toner therein; and a drum cartridge to which the developing cartridge is attachable. The drum cartridge is attachable to the casing through the opening in a state where the developing cartridge is attached to the drum cartridge. The drum cartridge includes: a photosensitive drum; a drum frame; a charge roller; a cleaning blade configured to clean a circumferential surface of the photosensitive drum; a waste toner collecting unit having an internal space allowing waste toner removed from the circumferential surface of the photosensitive drum by the cleaning blade to be collected therein; a waste toner accumulating unit having an internal space allowing the waste toner to be accumulated therein; and a waste toner conveying unit configured to convey the waste toner from the waste toner collecting unit to the waste toner accumulating unit.