
INTRODUCTION 
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Matrix 400™ assures the reading of deformed and / or overprinted codes, even though 
damaged or printed on high reflective surfaces (see Figures 22, 23, 24). 
Figure 22 - Unidose Flow-Pack with PDF417 Code 
Figure 23 - Overprinted Barcode Readable by Matrix 400™ also Through the Envelope Window Film 
Figure 24 - Barcode Printed on Curved Surface Readable by Matrix 400™ in spite of Image Optical 
Distortion 
Matrix 400™ is also very powerful in reading low-contrast direct part marked codes (see 
Figures 25, 26, 27, 28 and 29). 
Figure 25 -  Dot Matrix Code Directly Marked on Metal Surface by Using Dot Peening Technology