Datalogic Matrix 200 Instruction Manual download pdf (Page 107)

SOFTWARE CONFIGURATION

8.4.7 Direct Part Marking Applications

Decoding Method: Direct Marking

For

DataMatrix 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.

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

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

Method.

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Datalogic Matrix 200 Instruction Manual Page 107