Patent ID: 8391754

Claim:
A toner cartridge for use with a developer unit of an image forming device, comprising: a housing having a top, a bottom and four sides, the housing having a reservoir for holding toner; an outlet on a first of the four sides of the housing for transferring toner from the reservoir to the developer unit through an inlet on the developer unit; and an alignment member projecting from the first side of the housing at a fixed position below the outlet, the alignment member having a first surface portion for engaging and guiding the developer unit to a reference position as the toner cartridge is inserted into the image forming device, the first surface portion leading to a second surface portion positioned above the first surface portion for engaging the developer unit as the toner cartridge is removed from the image forming device, the first surface portion forming an acute angle with respect to a vertical direction of insertion of the toner cartridge in a first direction and the second surface portion forming an acute angle with respect to the vertical direction of insertion of the toner cartridge in a second direction opposite the first direction.