A replaceable unit for an electrophotographic image forming device , comprising: an elongated body extending along a lengthwise dimension between a front and a rear of the body , the body further including a first side , a second side , a top and a bottom , the body having a reservoir for holding toner; a drive element unobstructed to receive rotational power when the replaceable unit is installed in the image forming device ; an electrical contact on the rear of the body unobstructed to contact a corresponding electrical contact when the replaceable unit is installed in the image forming device ; an extension downward from the bottom of the body near the rear of the body , the extension having a downward chute formed therein in fluid communication with the reservoir , a rear face of the extension unobstructed to receive a bias force in a forward direction toward the front of the body along the lengthwise dimension ; an outlet port in fluid communication with the chute for transferring toner out of the reservoir ; characterized by the drive element being positioned on the rear of the body , the outlet port being positioned on the bottom of the extension , a latch catch on the first side of the body positioned to receive a corresponding latch when the replaceable unit is installed in the image forming device to restrain the body from moving in the forward direction along the lengthwise dimension ; and a first ledge and a second ledge at the bottom of the extension , the first ledge extending away from the chute toward the first side and the second ledge extending away from the chute toward the second side , each ledge being spaced below the bottom of the body . an elongated body extending along a lengthwise dimension between a front and a rear of the body , the body further including a first side , a second side , a top and a bottom , the body having a reservoir for holding toner; a drive element unobstructed to receive rotational power when the replaceable unit is installed in the image forming device ; an electrical contact on the rear of the body unobstructed to contact a corresponding electrical contact when the replaceable unit is installed in the image forming device ; an extension downward from the bottom of the body near the rear of the body , the extension having a downward chute formed therein in fluid communication with the reservoir , a rear face of the extension unobstructed to receive a bias force in a forward direction toward the front of the body along the lengthwise dimension ; an outlet port in fluid communication with the chute for transferring toner out of the reservoir ; characterized by the drive element being positioned on the rear of the body , the outlet port being positioned on the bottom of the extension , a latch catch on the first side of the body positioned to receive a corresponding latch when the replaceable unit is installed in the image forming device to restrain the body from moving in the forward direction along the lengthwise dimension ; and a first ledge and a second ledge at the bottom of the extension , the first ledge extending away from the chute toward the first side and the second ledge extending away from the chute toward the second side , each ledge being spaced below the bottom of the body . <EOS>