In a printing apparatus, printing requests for first and second target data are received via a network interface from a terminal device. First target data, first password information, and first identification information are stored in association with one another in a memory, and second target data, second password information, and first identification information are stored in association with one another in the memory. When it is determined that the specific password information received via the inputting device matches the first password information, the printing device is controlled to print a first image represented by the first target data, the second target data whose associating identification information is the first identification information associated with the first target data is extracted from the memory, and the printing device is controlled to print a second image represented by the second target data.