Symbol LS4000P Series, Product Reference Manual

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3-3
Scanning
Scanning PDF417 (2D) Bar Codes
PDF417 scanning is enabled by default in the LS 4000P scanner. PDF417 scanning can be
disabled or enabled by scanning the corresponding parameter bar code in Enable/Disable
PDF417 on page 5-75.
To scan a 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
overlapping the outside edges of the bar code by about 1/2” on each side.
3. Manually raster the scan line by slowly moving the scanner up and down so it scans
the entire bar code.
If PDF Decode Feedback is enabled, a “clicking” sound 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.
!
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 to 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 yellow LED on the rear of the scanner turns green. The green LED stays lit
for two seconds or until the next trigger pull.
1/2” 1/2”