1.4 Display and Buttons
The status of SMART-21P is displayed on the Watchman program of the Windows tray.
It is changed to 'System Ready' if the printer is fine. It is change to 'Printing' when the printer is
working. In case of sensing an error, it is changed to 'Error' status. Whenever the top cover is
opened, the operation is stopped and the status is 'Top Cover Open'.
Figure 5 Watchman Pop-up