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MATRIX 300™ REFERENCE MANUAL

124

7.5.9 Direct Part Marking Applications

Decoding Method: Direct Marking

For Data Matrix codes 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.

All the previous examples are successfully read selecting the Direct Marking Decoding

Method.

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

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