From the printer control panel, touch Cancel Job or press on the keypad.
Touch the print job you want to cancel, and then touch Delete Selected Jobs.
Note: If you press on the keypad, then touch Resume to return to the home screen.
Here are steps on how to troubleshoot unresponsive control panel or touch screen display.
How to Configure Wireless Settings for the MarkNet N8350 and MarkNet N8352 via Printer Control Panel