A toner cartridge for installation in an image forming device, comprising: a housing having a top, a bottom, a front, and a rear positioned between a first side and a second side of the housing, the housing has a reservoir for holding toner; an outlet port in fluid communication with the reservoir and facing downward on the front of the housing for exiting toner from the toner cartridge; a channel running along the front of the housing between the first side and the second side in fluid communication with the outlet port, at least a portion of the channel is open to the reservoir; an auger positioned in the channel and extending along the front of the housing between the first side and the second side, the auger includes a rotational axis and is operative to move toner in the channel toward the outlet port; an electrical contact on the first side of the housing for contacting a corresponding electrical contact in the image forming device when the toner cartridge is installed in the image forming device, the electrical contact is electrically connected to processing circuitry mounted on the housing; and a guide (160a, 160b) on the first side of the housing positioned in front of and leading rearward toward the electrical contact, the guide (160a, 160b) including an inside surface (163a, 163b) that faces axially inward relative to the rotational axis of the auger, the inside surface (163a, 163b) being unobstructed permitting the inside surface (163a, 163b) to contact an electrical connector in the image forming device during insertion of the toner cartridge into the image forming device, characterized in that at least a portion of the inside surface (163a, 163b) being angled axially inward relative to the rotational axis of the auger in a direction from the front to the rear permits contact between the inside surface (163a, 163b) and the electrical connector in the image forming device to draw the electrical connector in the image forming device axially inward relative to the rotational axis of the auger during insertion of the toner cartridge into the image forming device with the front of the housing leading. a housing having a top, a bottom, a front, and a rear positioned between a first side and a second side of the housing, the housing has a reservoir for holding toner; an outlet port in fluid communication with the reservoir and facing downward on the front of the housing for exiting toner from the toner cartridge; a channel running along the front of the housing between the first side and the second side in fluid communication with the outlet port, at least a portion of the channel is open to the reservoir; an auger positioned in the channel and extending along the front of the housing between the first side and the second side, the auger includes a rotational axis and is operative to move toner in the channel toward the outlet port; an electrical contact on the first side of the housing for contacting a corresponding electrical contact in the image forming device when the toner cartridge is installed in the image forming device, the electrical contact is electrically connected to processing circuitry mounted on the housing; and a guide (160a, 160b) on the first side of the housing positioned in front of and leading rearward toward the electrical contact, the guide (160a, 160b) including an inside surface (163a, 163b) that faces axially inward relative to the rotational axis of the auger, the inside surface (163a, 163b) being unobstructed permitting the inside surface (163a, 163b) to contact an electrical connector in the image forming device during insertion of the toner cartridge into the image forming device, characterized in that at least a portion of the inside surface (163a, 163b) being angled axially inward relative to the rotational axis of the auger in a direction from the front to the rear permits contact between the inside surface (163a, 163b) and the electrical connector in the image forming device to draw the electrical connector in the image forming device axially inward relative to the rotational axis of the auger during insertion of the toner cartridge into the image forming device with the front of the housing leading.