Symbol SPT 1700, Руководство по продукции, Страница: 258 / 317

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SPT 1700 Series Product Reference Guide
Scanning 2-Dimensional Bar Codes
Some models of the SPT 1700 perform 2-Dimensional bar code scanning. To scan a 2-
dimensional PDF417 bar code:
1. Aim the scanner at the PDF bar code and press the trigger.
2. Hold the trigger down and keep the scan line parallel to the rows of the symbol.
3. Manually raster the scan line by slowly moving the scanner up and down so it scans
the entire bar code at a rate of one inch per second.
When PDF Decode Feedback is enabled, a clicking noise lets you know the bar code is being
decoded. If this parameter is enabled but there’s no clicking noise when you’re scanning the
bar code, it’s not being scanned properly.
To improve PDF decoding:
!
Check that PDF417 scanning is enabled.
!
Make sure the scan line extends at least 1/2” past the left and right edges of the bar
code.
!
Hold the scanner closer for denser symbols, farther away for larger symbols.
!
Make sure you scan the top and bottom rows of the symbol.
!
Be patient - it may take a few swipes to decode the symbol.
The bar code has been completely decoded when you hear a tone, followed by a short, high
tone beep. The green LED stays lit for two seconds or until the next trigger pull.
1/2” 1/2”
Scan Line