Medium conveying apparatus and computer-readable non-transitory medium

A computer-readable, non-transitory medium storing a computer program, wherein the computer program causes a medium conveying apparatus to execute a process, the medium conveying apparatus including a feed roller to separate and feed a medium, a conveyance roller located downstream from the feed roller in a medium conveying direction to convey the medium fed by the feed roller;

• a processing device located downstream from the conveyance roller in the medium conveying direction to perform predetermined processing on the medium conveyed by the conveyance roller, and a single driving source to generate a driving force for rotating the feed roller and the conveyance roller, the process comprising
• controlling the driving source to change a rotation speed of the feed roller on a condition that a trailing end of a preceding medium has passed the processing device, when the medium has not reached a predetermined position at a predetermined timing.