Image processing device, image processing system provided with the image processing device, non-transitory computer-readable storage medium storing control program and control method of image processing device

A non-transitory computer-readable storage medium storing a control program of an image processing device that is wirelessly connected with a mobile terminal having a display and is capable of accepting an operation by a user via the mobile terminal, the control program causing a computer of the image processing device to execute procedures comprising:

• sending, to the mobile terminal, operation screen data for displaying, on the display, an operation screen necessary for accepting the operation;
• estimating a distance between the image processing device and the mobile terminal;
• and
• controlling the operation screen data so that, when an estimated distance by the estimating is less than or equal to a predetermined threshold value, the operation screen is brought in a mode capable of accepting a specific operation which is the operation that is specific, and when the estimated distance exceeds the threshold value, the operation screen is brought in a mode incapable of accepting the specific operation.

A control method of an image processing device that is wirelessly connected to a mobile terminal having a display and that is capable of accepting an operation by a user via the mobile terminal, the control method comprising:

• sending, to the mobile terminal, operation screen data for displaying, on the display, an operation screen necessary for accepting the operation;
• estimating a distance between the image processing device and the mobile terminal;
• and
• controlling the operation screen data so that, when an estimated distance by the estimating is less than or equal to a predetermined threshold value, the operation screen is brought in a mode capable of accepting a specific operation which is the operation that is specific, and when the estimated distance exceeds the threshold value, the operation screen is brought in a mode incapable of accepting the specific operation.