Patent ID: 7604317

Claim:
A recording apparatus comprising: a carriage; a plurality of ink containers, each ink container including a light emitter and mounted at a respective position in the carriage; a light receiver configured to receive light from the light emitters; a driving unit configured to move the carriage such that the ink containers are moved to a plurality of positions relative to the light receiver, wherein the ink containers are mounted in the carriage such that at least one of the ink containers is capable of moving to a facing position facing the light receiver and at least one of the ink containers is not capable of moving to the facing position; a lighting control unit controlling lighting the light emitters of the ink containers; and a determining unit determining whether a predetermined ink container of the ink containers is mounted at the respective correct position in the carriage, based on the light emitted from the light emitter of the predetermined ink container at the plurality of positions and received by the light receiver, wherein the determining unit determines whether the at least one of the ink containers not capable of moving to the facing position is mounted at the respective correct position in the carriage, based on the light received from the light emitter of the ink container adjacent thereto.