Datalogic Matrix 400 Manual de instrucciones descargar pdf (Pagina 39)

SYMBOL VERIFICATION OVERVIEW

Modulation (MOD)

Modulation is a measure of the uniformity of reflectance of the dark and light modules

respectively.

Some printing/background factors may reduce the apparent margin between the reflectance

of a module and the Global Threshold.

Print Growth

Print Growth refers to the deviation (larger or smaller) of actual element size from intended

element size due to printing problems.

When a symbol is printed, the ink can spread when it comes in contact with the substrate

causing an Overprinting effect.

If there is not enough ink, or if there is some other problem with printing equipment, the result

may be an Underprinting effect.

Underprinting Overprinting

Symbol Contrast (SC)

Symbol Contrast tests that the two reflective states in the symbol, namely Light and Dark, are

sufficiently distinct within the symbol.

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Datalogic Matrix 400 Manual de instrucciones Pagina 39