Enabling 2-D Scanning:

The scanner default settings do not enable 2-D barcode reading ability. In order to enable this option, follow these steps:

Scan the barcodes below to enable PDF417 and MicroPDF417. These are both types of 2-D barcodes.

Now scan the barcode below to change the scanning pattern. Using this scanning pattern will allow you to read 2-D barcodes (you can still read 1-D barcodes also).

Elo TouchSystems 15A2 User Guide 21

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Tyco Electronics 15A2 15 LCD Multifuntion Touchcomputer, ESY15A2 manual Enabling 2-D Scanning