A floor covering removal machine for removing a floor covering that is secured to a floor that includes a drive frame formed with an underside caster assembly, and feed, ejection, and oppositely arranged cutter sides. The robot controller is connected to an additional drive and controls this for moving the robotic hand synchronized to the axes of movement such that the additional drive would create a relative rotation andor translation movement between the recording system and the support unit created by the movement of the robotic hand solely by a movement of the support unit with a stationary robotic hand. The reflected signals have different respective main and auxiliary beam patterns. A mode determiner disables an amplification operation of the power amplifier when a status monitoring signal output from the status monitor indicates an RX mode. The projections are sized to provide adequate clearance between the disc and the flat surface, while minimizing interference between the projections and components of optical disc readers and drives.