Print 4×6 Packing Slips on a Munbyn Thermal Printer
Munbyn’s 4×6 thermal printers are popular with small shops. If your slip prints misaligned or feeds an extra blank label, the culprit is usually the driver, paper size or calibration rather than the file — here’s how to check each.
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Quick Answer
Make your 4×6 packing slip
Fill in the order and the preview updates instantly. Everything happens in your browser — nothing you type is uploaded.
Print at Actual Size / 100% on 4×6 stock — not “Fit to page.” Long orders continue onto extra 4×6 pages instead of shrinking text below 7 pt.
Munbyn driver and paper-size settings for 4×6 packing slips
Munbyn’s support guidance is to install the driver for your model from Munbyn’s support site — generic thermal drivers often lack label-size handling — and then set the paper size in Printing Preferences to match your labels: 100 mm × 150 mm (4 × 6 in) for standard shipping-size stock.
- Download the PDF from the maker above.
- Install the Munbyn driver for your model, then open Printing Preferences and set paper size to 4×6 in (100×150 mm) — create a custom size if it isn’t listed.
- In the print dialog choose Actual Size / 100%; avoid Fit to page, Shrink to fit or Scale to printable area.
- Set margins to none and turn off headers and footers in browser print dialogs.
- Print one test slip, then adjust darkness or speed a step if small text looks light or soft.
Menu names differ between Windows, macOS and driver versions. If you can’t find a setting, look in the driver’s “Printing Preferences” or “Paper/Quality” tabs, or consult Munbyn’s support documentation for your model.
Calibrate to your labels: the fix for most misaligned prints
Thermal label printers detect where one label ends and the next begins with a sensor. When the sensor isn’t calibrated to your current stock, slips print off-position, shift down the page, or a blank label feeds after each job. Munbyn’s guidance for label printing problems includes re-running its label calibration after loading new stock; on many models that means loading several labels and holding the FEED button until the printer signals it has learned the label size, but the exact button sequence and indicator vary by model — follow your manual.
- Calibrate after loading any new roll or fanfold stack, especially when switching brand or gap size.
- Keep the guides snug to the stock so it feeds straight.
- Match the media type to your stock: gap/label stock, continuous, or fanfold as your driver labels it.
- Print the free diagnostic test label to confirm alignment and print quality before troubleshooting the slip itself.
Already print your shipping labels here too? Use the Shipping Label Resizer so both labels and slips are exact 4×6 pages that share one driver setting. Slip printing small instead? See the print-size fixes.
Sources and official help
These are the vendors’ own help pages behind the steps above. Menu names and settings change over time; check the vendor’s current documentation for your account or printer model.
Found something out of date? Tell us and we’ll correct it.
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Frequently asked questions
Can a Munbyn thermal printer print packing slips?
Yes. Munbyn 4×6 printers print a 4×6 PDF like any shipping label. Download the slip, set paper size to 4×6 in and scale to 100%, and print.
Why does my packing slip print shifted or feed a blank label?
That is usually a calibration or paper-size mismatch. Recalibrate the printer with your current label stock and make sure the driver’s paper size is 4×6 in (100×150 mm).
Do I need to install a Munbyn driver?
Most setups need the printer’s driver so a 4×6 paper size is available in the print dialog. Munbyn advises using its own driver rather than a generic one; follow its instructions for your model and operating system.
Why is the text on my slip too light?
Raise the darkness one step or slow the print speed one step, and clean the printhead if needed. The free thermal printer test shows whether the issue is print quality or the slip.
Why does my slip print small on my Munbyn?
The print dialog is probably scaling a full-page document down to 4×6. Set the scale to Actual Size / 100% and use a slip that is natively 4×6.
More for sellers who print on 4×6
Ready to print your packing slip?
Enter the order, check the preview, and download a 4×6 PDF that fits your thermal printer.
Make a 4×6 Packing Slip