Staas & Halsey LLP
Detecting completion of injection of toner of toner refill cartridge
A toner refill cartridge includes a body in which toner is accommodated, a plunger inserted into the body and movably coupled to the body in a longitudinal direction of the body to push the toner out of the body, a toner injection completion signal generator used to detect toner injection completion according to movement of the plunger, and a connection interface located at a tip portion of the body and connectable to an image forming apparatus to transfer information about a toner refill cartridge to the image forming apparatus.
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
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Jinhwa SeungSup
Hong Lee