Patent ID: 9703234
Date: 2017-07-11
CPC Classifications: G03G

Claim:
1. A toner cartridge for an electrophotographic image forming device, comprising: a housing having a reservoir for storing toner; a rotatable drive shaft positioned within the reservoir; a partition mounted on the rotatable drive shaft and axially movable along the rotatable drive shaft when the rotatable drive shaft rotates, the partition divides the reservoir into a first compartment for storing fresh toner and a second compartment for storing waste toner; and an expandable agitator positioned within the second compartment and rotatable with the rotatable drive shaft, wherein when the rotatable drive shaft rotates and the partition moves along the rotatable drive shaft expanding a volume of the second compartment, the expandable agitator expands along a length of the rotatable drive shaft and rotates with the rotatable drive shaft for agitating waste toner in the second compartment.