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:
Mar. 10, 2026
Filed:
Jan. 12, 2022
Hewlett-packard Development Company, L.p., Spring, TX (US);
Seongho Jeong, Seongnam, KR;
Jongwon Han, Seongnam, KR;
Sungchul Ahn, Seongnam, KR;
Junhui Kim, Seongnam, KR;
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Abstract
An image forming apparatus includes: a body comprising a developing device, and a mounting unit from which a toner refill cartridge is detachable and which is connected to the developing device and delivers toner accommodated in the toner refill cartridge to the developing device. The body includes a housing having a communication hole so that the toner refill cartridge is mounted on the mounting unit from outside the image forming apparatus. The image forming apparatus includes a drive unit to provide a driving force to the toner refill cartridge so that toner is supplied from the toner refill cartridge to the developing device: a detecting unit to acquire a detected value corresponding to an amount of toner in the toner refill cartridge; and a controller to control an operation of the drive unit based on the detected value.