Patent ID: 7620348

Claim:
A container, adapted to be coupled with a first another container, the container comprising: a first wall member, defining a first storage space adapted to store developing agent for forming an image on a recording medium; a first coupler, adapted to be coupled with a second coupler provided with the first another container; and a first communicator, operable to communicate the first storage space with a second storage space provided with the first another container by way of the first coupler and the second coupler, when the container is coupled with the first another container, wherein: the container is adapted to be coupled with a second another container, and further comprises: a third coupler, adapted to be coupled with a fourth coupler provided with the second another container; and a second communicator, operable to communicate the first storage space with a third storage space provided with the second another container by way of the third coupler and the fourth coupler, when the container is coupled with the second another container.