Guide · Printing
Thermal label printer setup for shipping labels
Updated 12 October 2026 · 6 minute read
A thermal label printer prints each shipping label on its own small sticker with no ink and no cutting. Once it is set up correctly it is the fastest way to ship, but a wrong paper size or missing calibration causes cut-off labels and blank stickers. This guide walks through the setup once, so every print after that is a single click.
How thermal label printers work
Most shipping label printers are direct thermal printers. A heated print head darkens special heat-sensitive paper, so there is no ink, toner or ribbon to buy. You only replace the label roll. Because the paper reacts to heat, labels also fade if they sit in a hot place for a long time, so keep rolls and printed labels away from direct sun.
Before you start: know your label size
The most common shipping label size is 4 × 6 inches, about 100 × 150 mm. Your own roll may be different, so check the size printed on the roll box or core. You will enter this size in the printer settings, and it must match what is physically loaded.
Step 1: Install the printer and its driver
- Connect the printer by USB (or follow the maker’s steps for Bluetooth or Wi-Fi models).
- Install the driver from the manufacturer, rather than relying on a generic one. The official driver exposes the correct label sizes.
- Load the roll with the print side facing the print head, and close the cover until it clicks.
- Feed one label so the printer finds the gap or mark between stickers.
Step 2: Set the paper size in the driver
Open the printer’s preferences and create or choose a paper size that matches your roll, for example 100 × 150 mm. Set it as the default, so every new print job starts with the correct page size. Most “labels print on the wrong size” complaints come from this one setting.
Step 3: Calibrate
Calibration teaches the printer where one label ends and the next begins. Run the calibration routine from the driver or the printer’s buttons whenever you change to a new roll type. If the printer skips a label between prints or prints across the gap, it needs calibration.
Step 4: Create the labels with Label Expert
- Open the Amazon, Flipkart or Meesho tab and choose your label PDFs.
- Leave Paper on Thermal roll. Every label becomes its own page, sized to the label itself, so nothing is wasted.
- Press Process, then Direct Print. The PDF opens in a new tab. If nothing opens, allow pop-ups for the site.
- In the print window choose your thermal printer and set scale to Actual size (100%).
Step 5: Print one test label
Send a single label first. Check that the whole label is visible, that the edges are not cut off, and that a phone camera scans the barcode at once. Only then print the full batch.
Keeping the printer healthy
- Clean the print head every few rolls with a soft cloth and isopropyl alcohol, when the printer is off and cool. Dust and adhesive cause faint stripes.
- Use the right roll. Direct thermal rolls for direct thermal printers. A roll that needs a ribbon will not print on a printer without one.
- Store rolls cool and dry. Heat and damp shorten their life.
- Do not pull labels out while printing. It can knock the printer out of calibration.
Troubleshooting
- Printing is faint. Raise the darkness setting a little, lower the speed, and clean the print head.
- A blank label comes out between prints. Calibrate the printer, and check the paper size in the driver matches the roll.
- The label is cut off or too small. Set the driver paper size to your roll, and print at actual size rather than “fit to page”.
- Black lines across the label. A dirty print head. Clean it.
- The label prints sideways. Change the orientation in the print dialog.
Frequently asked questions
What size is a thermal shipping label?
The most common shipping label size is 4 by 6 inches, about 100 by 150 millimetres. Always check the size printed on your own roll and set the same size in the printer driver.
Why does my printer skip a label between prints?
This usually means the printer is not calibrated to the roll. Run the printer's calibration or feed routine so it learns where each label starts.
Do thermal printers need ink?
Direct thermal printers use heat-sensitive paper, so they need no ink or toner. You only replace the label roll.