Symbol QRG LS 4000 Serie Manual De Instrucciones página 7

Q u i c k
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.
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 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"
R e f e r e n c e
5
1/2"