Fluid container having first and second key set

A fluid container usable with an image forming apparatus including a receiving unit having a plurality of receiver slots, the fluid container comprising:

• a housing unit including a plurality of wall portions and a fluid chamber configured to store fluid therein, the housing unit configured to removably attach to a respective receiver slot of the receiving unit of the image forming apparatus;
• a first key set disposed on an exterior surface of one wall portion and a second key set disposed on an exterior surface of an other wall portion of the housing unit, the first key set configured to form a first key pattern corresponding to a conforming first receiver key pattern and the second key set configured to form a second key pattern corresponding to a conforming second receiver key pattern of the respective receiver slot of the receiving unit;
• a port disposed on the other wall portion of the housing unit adjacent to the second key set, wherein the port is configured to engage a port engagement member and to provide fluid communication between the fluid chamber and the port engagement member;
• and
• a guide member disposed on the one wall portion of the housing unit,
• wherein the guide member is configured to engage the respective receiver slot and guide the housing unit therein during installation of the fluid container in the receiving unit.