A toner cartridge for use with an image forming device comprising: a body with a top, bottom, front, first and second lateral sides, and a back, the body also including an enclosed interior to contain toner; at least one chamfer positioned at the bottom to align the cartridge during insertion into the image forming device; a rib positioned on the first lateral side to laterally position the cartridge during insertion into the image forming device, the rib including a leading edge that faces towards the bottom and is spaced away from bottom; an outlet in the body to allow the toner to be moved from the interior and into the image forming device, the outlet positioned a greater distance from the bottom than the rib; a shutter operatively connected to the outlet and movable between a closed position to prevent the toner from moving through the outlet and an open position to allow the toner to move through the outlet; a drive gear positioned on the front of the body for engaging with the image forming device; a cover that attaches to the front of the body and extends across a majority of the drive gear, a lower section of the drive gear being positioned toward the bottom and extending outward beyond the cover for receiving rotational power from a corresponding gear in the image forming device; characterized in that a center of the drive gear is positioned farther from the bottom than the outlet; a first slot is positioned in the front with an open end that faces the bottom, the first slot including first and second opposing side walls; and a second slot is positioned in one of the first and second lateral sides, the second slot being wider than the first slot, the second slot including an open end that faces the bottom, a closed end opposite the open end and first and second opposing side walls (31, 32) that extend between the open end and the closed end, and wherein (i) the closed end of the second slot, (ii) the side wall of the second slot and (iii) a centerline of the first slot form a first, second and a third datum, respectively, for aligning the toner cartridge when fully inserted in the image forming device. a body with a top, bottom, front, first and second lateral sides, and a back, the body also including an enclosed interior to contain toner; at least one chamfer positioned at the bottom to align the cartridge during insertion into the image forming device; a rib positioned on the first lateral side to laterally position the cartridge during insertion into the image forming device, the rib including a leading edge that faces towards the bottom and is spaced away from bottom; an outlet in the body to allow the toner to be moved from the interior and into the image forming device, the outlet positioned a greater distance from the bottom than the rib; a shutter operatively connected to the outlet and movable between a closed position to prevent the toner from moving through the outlet and an open position to allow the toner to move through the outlet; a drive gear positioned on the front of the body for engaging with the image forming device; a cover that attaches to the front of the body and extends across a majority of the drive gear, a lower section of the drive gear being positioned toward the bottom and extending outward beyond the cover for receiving rotational power from a corresponding gear in the image forming device; characterized in that a center of the drive gear is positioned farther from the bottom than the outlet; a first slot is positioned in the front with an open end that faces the bottom, the first slot including first and second opposing side walls; and a second slot is positioned in one of the first and second lateral sides, the second slot being wider than the first slot, the second slot including an open end that faces the bottom, a closed end opposite the open end and first and second opposing side walls (31, 32) that extend between the open end and the closed end, and wherein (i) the closed end of the second slot, (ii) the side wall of the second slot and (iii) a centerline of the first slot form a first, second and a third datum, respectively, for aligning the toner cartridge when fully inserted in the image forming device.