Driving apparatus, image forming apparatus, method of driving control and program

A driving apparatus comprising:

• a driving unit configured to rotate a driving shaft;
• a speed setting unit configured to set a rotational speed at which the driving unit rotates the driving shaft;
• a driving shaft joint connected with the driving shaft to rotate with the driving shaft for transmitting driving-force to a driven apparatus, the driving shaft joint being fitted into a driven shaft joint connected with the driven apparatus that is made detachable;
• a rotational position detection unit configured to detect a predetermined rotational position of the driving shaft joint;
• and
• a driving control unit configured to control the driving unit;
• wherein
• upon an instruction indicating that the driven apparatus will be detached being given to the driving control unit, the driving control unit controls the driving unit to stop the rotating driving shaft based on a detection result of the rotational position detection unit after the speed setting unit sets the rotational speed of the driving shaft to be a first rotational speed, the first rotational speed being less than a normal rotational speed of the driving shaft set in normal operation of the driven apparatus.