In an information processing device, a support program supports a printer, and a printing program is built in an operating system. The support program causes the information processing device to perform: in a case that a print instruction to execute printing by using the built-in printing program is issued, at least one of a command outputting process and an outputting instruction process. The command outputting process outputs a preceding operation command to the printer before starting transmitting print execution data to the printer. The preceding operation command commands the printer to execute a preceding operation prior to starting printing. The printer having a function to execute the preceding operation specified in the preceding operation command. The outputting instruction process instructs a command transmission program to output the preceding operation command while the outputting instruction process designates the printer as an outputting destination.