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. 25, 2019
Filed:
Mar. 09, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Kensuke Kawajiri, Saitama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus capable of preventing unnecessary replacement of a toner cartridge when a drum part is replaced. The toner cartridge supplies toner. The drum part uses the toner supplied from the toner cartridge as lubricant when the drum part performs a first time operation after it has been mounted. The toner cartridge and the drum part are removably mounted. The image forming apparatus detects a value indicative of the remaining amount of toner stored in the toner cartridge and a value indicative of the remaining lifetime of the drum part. When the value indicative of the remaining lifetime is not larger than a predetermined threshold value, replacement of the drum part is notified. Contents of the notification are changed according to the value indicative of the remaining amount of toner stored in the toner cartridge.