Click the "Refresh" button on the "Status Window".
Note:
It is not necessary to click the "Refresh" button for communication with printer from the beginning to the end of printing. By default the current status of the printer is updated automatically every 30 seconds. You can change this interval in the "Settings" dialog box that can be opened from the "Printer Selection" list.
The status window cannot be opened when the printer does not support bi-directional communication. So user cannot see the "Refresh" button is disable or not.