What Is DPI and Why Does It Matter for Portable Label Printers? DPI (Dots Per Inch) measures a label printer’s accuracy—how many ink/thermal dots it places per inch. More dots mean smoother edges, clearer text, and better graphic fidelity. Why does this matter? For labels, DPI directly affects text readability (especially small or dense fonts), barcode scanning success (blurry edges cause misreads), and overall professionalism. 203 DPI works for...