Guides

The essentials for choosing, loading and printing thermal labels.

• 4x6, 6x4 and 100 × 150 mm labels: are they the same?4x6 and 6x4 thermal labels are the same shipping label described two ways; 100 × 150 mm is the metric version. Exact sizes and how to print courier PDFs.
• Direct thermal or thermal transfer? How to tell your labels apartThe fingernail scratch test shows whether a label is direct thermal and which side faces the printhead, plus the difference from thermal transfer labels.
• Core size, roll diameter and winding: what to check1″, 1.5″, 40 mm or 3″ cores, maximum outer diameter and inside or outside winding: the three things that decide whether a label roll fits your printer.
• Troubleshooting: blank, faint or misaligned labelsCauses and fixes, symptom by symptom.
• Which thermal label size do you need?The right size by use, from shipping to price labels.