We recommend that you use the web version of Stamps.com.
You may access it via https://print.stamps.com
1. Select '' Print on: Roll 4 x 6 Shipping Labels'' in the drop down menu
2. Click on "Print" and choose LP320 Printer ensuring that the label size is set to 4x6.
Note: We recommend that you switch to Stamps.com's newest acquisition ShipStation for reliable, fast, and easy printing.