Patent ID: 7840160

Claim:
A toner cartridge for being attached to a toner cartridge holder, comprising: a body that extends in a longitudinal direction, said body including a first longitudinal end portion and a second longitudinal end portion; a memory element; a first electrical terminal disposed on the first longitudinal end portion, said first electrical terminal being electrically connected to said memory element; an engagement portion formed on an outer surface of said body, the engagement portion being spaced from the first longitudinal end portion and being closer to the first longitudinal end portion than a longitudinally middle portion of said body; wherein the toner cartridge is configured such that when the toner cartridge is attached to the toner cartridge holder with the body extending longitudinally in a horizontal direction, the second longitudinal end portion engages the toner cartridge holder and said engagement portion engages the toner cartridge holder such that the first longitudinal end portion is pressed in the horizontal direction against the toner cartridge holder to be held in position.