公开(公告)号：US20210263448A1

公开(公告)日：2021-08-26

申请号：US17059592

申请日：2019-08-09

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Seung-Gweon LEE ,  Woong-Yong CHOI ,  Jinhwa HONG ,  Ji-Won MOON

IPC: G03G15/08 ,  G03G21/18

Abstract: A toner refill cartridge includes a body including a toner chamber containing toner and a toner discharging portion having an entrance connected to one end of the toner chamber in a length direction and an exit to discharge toner outside of the toner refill cartridge, a plunger including a piston that is movably inserted into the toner chamber in the length direction and a packing member located at an end of the piston to push the toner toward the toner discharging portion, a weight part movably accommodated in the toner chamber and having a shape which prevents the weight part from passing through the entrance, and a weight part container provided in the one end of the toner chamber in the length direction such that the weight part can be accommodated therein.