Patent ID: 8780371

Claim:
A printing apparatus for printing images on sheets of paper based on print data read out from a removable memory medium, the printing apparatus comprising: an interface to which the removable memory medium is connected; a printing unit configured to print images on sheets of paper based on the print data; a processing unit; and memory storing executable instructions that, when executed by the processing unit, cause the processing unit to execute processes of: reading out the print data and a specified number of copies, from the removable memory medium connected to the printing apparatus; storing the print data, read out from the removable memory medium, in a data storage of the printing apparatus; attempting to delete the print data stored in the removable memory medium; deleting the print data stored in the data storage, without printing the print data, when attempting to delete the print data stored in the removable memory medium has failed; and after the print data has been deleted from the removable memory medium, printing the specified number of copies of the print data based on the print data stored in the data storage of the printing apparatus and the specified number read out from the removable memory medium, and deleting the print data stored in the data storage after completion of printing.