Patent ID: 8086663

Claim:
A network system including a first network device storing a list of first devices determined by a user in advance and a second network device included in the list of the first devices, the second network device storing a list of second devices determined by the user in advance, wherein the first network device comprising: a scanning unit reading a document and generating image data; an inquiry unit, when an instruction to execute a predetermined printing function is given, issuing a notification request inquiring whether or not the predetermined printing function is capable of being executed to devices included in the list of first devices, wherein the notification request includes range information indicating a range over which the notification request is issued; a display unit displaying a list of devices which are capable of executing the predetermined printing function based on each reply to the notification request; and a first transmission unit transmitting the image data generated by the scanning unit and an instruction to execute the predetermined printing function to a device selected by a user among the list of devices displayed by the display unit; wherein the second network device comprising: a printing unit executing a printing process; and a second transmission unit transmitting a reply indicating whether the predetermined printing function is able to be executed to the first network device, when the notification request is received by the second network device, and transmitting the notification request to devices included in the list of second devices in accordance with the range information included in the notification request.