How to Troubleshoot Label Printing for the DYMO Labelwriter DYMO for PC: Go to the Start Menu and open the Control Panel. Go to Devices and Printers. Locate your DYMO Printer and right-click on the printer's icon. Select Printing Preferences. Go to Advanced Options and select your paper size (usually listed as 4×6 or 1744907). Click OK and then Apply at the bottom of the Printing Preferences window.