Printing system

A printing system comprising:

• a printing device;
• an accommodation rack in which multiple shelf sections capable of accommodating a support frame supporting an exchanging member are provided and the support frame is movable between the printing device and the shelf sections in a state where the accommodation rack faces the printing device, and which has an opening in a side surface parallel to a movement direction of the support frame;
• a delivery device including a feeding section capable of feeding in or out the support frame in the movement direction in a state of abutting on the support frame in the accommodation rack, and a moving section causing the feeding section to enter and exit from the accommodation rack through the opening;
• and
• a first detection section including a first sensor configured to detect an entering state of the feeding section with respect to the accommodation rack, and capable of detecting that there is no support frame in the shelf sections based on a detection signal of the first sensor.