Printing problems often involve paper size, scaling, margins, the chosen template or the printer driver. Start with a single test label.
If PrintNode is enabled, check its printer and queue settings as well. An offline printer or an unknown delivery result should be checked in PrintNode before resending, to avoid duplicate prints.
🛑 The "Golden Rules" of Label Printing
Before troubleshooting specific issues, ensure these three settings are correct. If these are wrong, your labels will fail.
Scale / Size: Must be set to 100% or "Actual Size". Never use "Fit to Page" or "Scale to Fit".
Paper Size: Must match your physical label size exactly (e.g., "30334 2-1/4 in x 1-1/4 in"). Do not select "Letter" or "A4" unless you are printing on a standard sheet of paper.
Margins: Set to "None" or "Minimum" in your browser print settings.
🔍 Troubleshooting by Symptom
1. Labels are "Drifting" or Misaligned
The first label looks okay, but the second is slightly lower, and by the fifth label, the text is cut off completely.
Cause: Your printer thinks the paper is a different size than it actually is, or the browser is adding a margin.
Fix 1 (Browser): Open the print dialogue. Uncheck "Headers and Footers." Ensure Scale is set to 100%.
Fix 2 (Printer Driver):
Mac: In the print dialogue, look for "Paper Size." If you see "US Letter," change it to your specific label code (e.g., 2.25" x 1.25").
Windows: Go to Printers & Scanners > Manage > Printing Preferences. Verify the "Stock" or "Paper Name" matches your label roll.
Fix 3 (The "Zoom" Bug): Ensure your browser zoom level is at 100% (Ctrl+0 or Cmd+0) before you click the print button.
2. Barcodes are Blurry or Won't Scan
The text looks fuzzy, or the scanner beeps but doesn't input anything.
Check symbol size, label stock and the printer manufacturer’s recommended print-quality settings.
Fix 1 (Quality Settings):
In the print dialogue, click "System Dialogue" or "Printer Properties."
Use a resolution supported by your printer and recommended for its label stock.
Barcodes need sharp edges and enough space. Review the printed result with your scanner.
For faint or blurred prints, use the printer manufacturer’s recommended speed and darkness settings. Increasing heat is not a universal fix.
Check the barcode has enough space and is not compressed by surrounding text. Increase the symbol size or use the barcode-priority option where available.
3. Printer Skips Labels or Prints Blank Labels
You print 10 labels, but the printer spits out 20 (half are blank).
Cause: The printer sensor hasn't calibrated to the gap between labels.
Fix (Calibration):
Follow the media calibration instructions for your exact printer model and label stock. Button sequences differ between printers.
Check the manufacturer’s instructions before resetting or reloading the printer.
Fix (Template Mismatch): You might be trying to print a "3x1" template onto "4x6" paper. Check your EasyScan template settings.
🖨️ Printer-Specific Instructions
For Dymo LabelWriter (450, 4XL, 550)
Dymo printers are susceptible to paper size selection.
Click Print in EasyScan.
In the Chrome/Safari dialog, look for "More Settings" -> "Print using system dialog..." (Cmd+Opt+P on Mac, Ctrl+Shift+P on Windows).
Select your Dymo printer.
Crucial Step: Under "Paper Size," select the specific SKU for your label (e.g., 30334 or 30252). If you leave it as "Undefined" or "Letter," it will drift.
For Rollo / Zebra (Thermal Printers)
These printers are workhorses but often default to 4x6 shipping labels.
Go to your computer's Printers & Scanners settings.
Open Printing Defaults (Windows) or Settings (Mac).
Set the default paper size to your small barcode label size (e.g., 2.25" x 1.25").
For fuzzy prints, follow the manufacturer’s recommended speed and darkness settings for your model and label stock.
For Standard Inkjet/Laser Printers (Avery Sheets)
Ensure you have selected the correct "Sheet" template in EasyScan (e.g., Avery 5160).
In the print dialogue, set Scale to 100% (Custom).
Media Type: Set to "Labels" or "Heavyweight Paper" in printer properties. This tells the printer to move more slowly, preventing ink smudging on glossy label sheets.