Image reading apparatus and computer-readable storage medium

An image reading apparatus comprising:

• an image reading unit configured to perform image reading;
• a drive unit configured to move a target in the image reading;
• and
• a signal generating unit configured to generate a signal to drive the image reading by the image reading unit,
• the image reading apparatus being configured to acquire, with moving of the target by the drive unit, image data by the image reading unit performing the image reading based on the signal generated by the signal generating unit, wherein
• the drive unit moves the target such that a moving speed of the target changes according to a predetermined driving speed profile,
• the signal generating unit generates the signal, based on the predetermined driving speed profile, at a timing that makes a moving distance of the target to be an equal interval, and
• the timing at which the signal generating unit generates the signal is a timing that makes the moving distance of the target to be an equal interval, in both a period while the moving speed of the target is changing and a period while the target is in a constant speed state.