↑ Return to Barcode Knowlegde

Direct Part Marking Applications (DPM)


For Data Matrix and QR code the Decoding Method parameter selects the decoding algorithm according to the printing/marking technique used to create the symbol and on the overall printing/marking quality. The Direct Marking selection improves the decode rate for low quality Direct Part Mark codes and in general for Direct Part Mark codes with dot peening type module shapes.Direct Part Marking Sample

Washed out and Axial Distortion

Dot Peening On Scratched Surface

Low Contrast Problem


Background Problems

Marked On Curved Shiny Surface

Axial distortion


Half moon effects

Shiny surface, noisy background

Low contrast, noisy background