Avision AD250F - Manual (Page 102)

User’s Manual
4-66
Note:

Recommended resolution: 200~600 dpi for regular
barcode, 300~600 dpi for QR code

Skewed barcodes may not be recognized correctly.

Using the same sheet repeatedly may decrease the
recognition accuracy due to accumulated dirt on the sheets.
If the sheet is not recognized correctly or gets smudged,
replace it with a new sheet.
Patch code Detection:
Check [Enable] to detect patch codes and notify the software
application for advanced processing.
A patch code is a pattern of parallel, alternating black bars and
spaces (i.e. a barcode) that is printed on a document. Patch
code sheet is most commonly used as a document separator in
a stack of document.
You can find various sizes of patch codes (PDF) by choosing
[Start] menu > [All Programs] > [Avision Scanner Series]
> [Patch code] in succession.
Simply print the PDF file to produce the patch code sheet.
Insert the patch code sheets to wherever you want the file to
separate.
Patch code sheet