Worth Data P11/12 - Manual (Page 27)

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The Integrated CCD Wedge Reader is a complete WDP Reader built into the F86
CCD Scanner. Just plug it in between your computer and keyboard and you're
ready to go. It works with any PC keyboard-compatible computer and all
Macintosh models.
Tips for using CCD’s and Lasers:
The CCD scanner works best when positioned about 3" from the bar code. The
operating range is about 0-4" for most codes. It can read curved and uneven
surfaces well. Both the CCD and laser scanners are simply aimed straight at the
bar code so that the scanner's beam must cross every bar and space on the bar code,
without touching any other bar codes, as shown in the first example below.
To read large bar codes with laser scanners, you'll need to hold the scanner further
away to produce a wider beam, and for bar codes with bars very close together,
you'll need to hold the laser scanner closer.
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