Patent attributes
An ink cartridge is removably mounted to a recording apparatus. The ink cartridge includes a main body and first and second protrusions. A particular end of the second protrusion extends further than a particular end of the first protrusion in the insertion direction. The main body includes an ink chamber, a particular wall having a first end and a second end opposite the first end in a further direction, a communication portion that selectively places an interior of the ink chamber and an exterior of the ink chamber into fluid communication, a holding portion positioned opposite the particular wall, and a bottom wall. A distance from a rear end of the bottom wall to the particular end of the second protrusion in the insertion direction is less than a distance from a rear end of the holding portion to an end of the second protrusion in the insertion direction.