I.R.I.S. Readiris 14 for Windows User Guide - Manual (Page 143)

How to
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
Adapt the Readiris brightness and contrast settings to the
environment (daylight, lamp light, neon light). See Selecting the
Scanner Settings.

Select color or grayscale as color mode in Readiris. Also see
Selecting the Scanner Settings.
H
OW TO RECOGNIZE BARCODES
(This section applies to Readiris Corporate only)
In Readiris Corporate you can recognize barcodes. Barcodes can be
used to separate documents in a batch.
Note: Readiris supports most widespread 2D barcodes. Readiris
supports laser printed and inkjet printed barcodes.
To define which barcodes Readiris should recognize:

Click the Readiris button, and then click Advanced Settings.

Select the barcode types you want Readiris to recognize.