Formatting errors when printing carrier labels (UPS, FedEx, USPS) can result in unscanned barcodes, cut-off addresses, lost packages, or carrier surcharges. Use this guide to configure your label settings correctly in ShipHero.
Pro Tip
Always check your print preview before printing a large batch to confirm the address and barcode are not touching the label edges.
Label Printing Troubleshooting Checklist
- Set Scale to Actual Size (100%): The Fit to Page setting shrinks a standard 4x6 label, making the barcode too small for carrier scanners to read. Set your printer scale to 100%.
- Match Paper Size to Label Size: Most shipping labels are 4x6 inches; some carriers like Australia Post use A4. If your printer is set to Letter (8.5x11), the label may print in a corner or appear stretched. Verify the paper size matches your label media.
- Verify Orientation: If the label prints sideways or across two stickers, toggle between Portrait and Landscape in the print preview to match how labels feed into your printer.
- Check Darkness and Dithering Settings: A fuzzy or gray barcode won't scan reliably. In your printer properties, increase Darkness or Density, and set Dithering to None or Ordered for crisp lines.
- Clean the Print Head: White streaks through a barcode on a thermal printer usually mean dust on the heating element. Wipe the print head gently with an alcohol swab.
Quick Fix Table for Labels
| If the label is... | Do this: |
|---|---|
| Too small or tiny | Change Scale to Actual Size or 100%. |
| Cut off at the edges | Check that Paper Size matches the label size returned by the carrier. |
| Faded or grey | Increase Print Density or Darkness in settings. |
| Stretched out | Uncheck Fit to Page or Fill Paper. |