Non-transitory computer readable storage medium storing set of program instructions for transmitting first and second sets of print data

A non-transitory computer readable storage medium stores a set of program instructions installed on and executed by a computer provided in a terminal device. The set of program instructions includes receiving a print start operation to start printing images represented by first and second sets of print data. The first set of print data represents a first print image correlated with a first print medium type. The second set of print data represents a second print image correlated with a second print medium type. The set of program instructions include transmitting the first set of print data, and transmitting the second set of print data to the printer. The second print image is to be printed after the first print image is printed. The transmitting the second set of print data is performed before the printer complete printing the first print image.