A printing system includes a printer configured to perform an issuance process of issuing a cancel notification in response to detecting a cancel trigger, and a non-transitory computer-readable medium storing computer-readable instructions that, when executed by a processor connected with a communication interface, cause the processor to cancel a generating process of generating print data and a print instruction process of transmitting print instruction information to the printer via the communication interface, in response to acquiring the cancel notification issued by the printer, during the generating process.