This is most likely due to your print speed being set too low or density set too high. Please set your print speed to "5" and density to "4" and print. 


On PC: 

Go to Control Panel > Devices and Printers > Right click on Rollo > Printer Preferences > Settings Tab 


Adjust (lower) Speed / Density and click on OK. The exact number depends on the type of label you are using. We recommend starting with 4 and 4. If your print is too light, please increase the density setting number to get a darker print. 


On Mac:

Access these settings directly from the print menu as shown below. 


The exact number for darkness and print speed depends on the type of label you are using. We recommend starting with 4 and 4. If your print is too light, please increase the darkness setting number to get a darker print.