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 (284, 285) 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 (284, 285) being spaced below the bottom of the body.