A printer includes a printing engine, an interface, and a controller. The controller is configured to perform obtaining a file from an external storage device; determining whether the file has information representing a specific function; in response to determining that the file has the information, sending to a server a data request; receiving data on the updates from the server; incorporating the data on the updates into the file; and causing the printing engine to print an image based on the file including the data on the updates. In response to not determining that the file has the information, the data request is not sent to the server.