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:
Aug. 25, 2026
Filed:
Dec. 13, 2024
Sharp Kabushiki Kaisha, Sakai City, JP;
Motoyuki Itoyama, Sakai City, JP;
Masayasu Narimatsu, Sakai City, JP;
Shohei Fukumoto, Sakai City, JP;
SHARP KABUSHIKI KAISHA, Sakai City, JP;
Abstract
An image forming device forms an image using toner contained in an attached cartridge, and includes: a development unit that forms a toner image on a photoreceptor drum; a conveyor that receives the toner from the cartridge and conveys the toner to the development unit; a toner sensor that detects the amount of toner stored in the development unit; an attachment/detachment detector that detects attachment and detachment of the cartridge; and a controller including a storage, the controller determining whether to perform a filling operation to fill the conveyor with the toner based on a filling determination variable stored in the storage when attachment of the cartridge is detected.