Print control apparatus, printing system, method for controlling print control apparatus, and storage medium to send a shutdown instruction from an information processing apparatus to a printer from a print control apparatus, and the print control apparatus executing shutdown processing after receiving a power supply state notification from a printer, sending the power supply notification to the information processing apparatus and receiving a shutdown notification from the printer

A print control apparatus that generates image data and transfers the image data to a printing apparatus that prints the image data, the print control apparatus comprising:

• a first communicator that receives data from a network;
• a second communicator that transmits data to the printing apparatus and receives data from the printing apparatus;
• and
• a controller that executes shutdown processing of the print control apparatus,
• wherein the first communicator receives a shutdown instruction to shut down from an information processing apparatus via the network, and then the second communicator transmits a shutdown instruction to execute shutdown processing of the printing apparatus to the printing apparatus,
• wherein the printing apparatus starts the shutdown processing of the printing apparatus according to the shutdown instruction and transmits a power supply state notification to the print control apparatus,
• wherein the second communicator receives the power supply state notification and the first communicator transmits the power supply state notification to the information processing apparatus via the network,
• wherein, after the second communicator receives the power supply state notification, the second communicator receives a notification about the shutdown processing of the printing apparatus, from the printing apparatus, and then the controller executes the shutdown processing of the print control apparatus according to the notification, and
• wherein the printing apparatus and the print control apparatus are able to be connected to a network.