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Vertical distance between bar codes is also a speed consideration in
parallel bar code direction. The verifier must have five continuous scans
where no bar code is detected to reliably exit a bar code when operating
in the standard operation mode. Assuming 100 scans per second
minimum, this means the vertical distance between the codes must take
at least 50 milliseconds to pass through the laser beam. Calculate the
maximum speed by measuring the shortest vertical space between bar
codes on a label (or between labels.) Divide this distance by .050
(seconds). The result is the fastest speed the codes can move through
the beam. For more detailed information about the vertical distance
between bars, refer to the SV Series Operator's Guide.
The slower of the two print speeds calculated above for bar height
and gap height is the maximum recommended speed for parallel bar
code travel direction.
Parallel Bar Code Positioning Specifications
• Four codes across maximum
• Horizontal gap between codes: 0.5 inch (13 mm) minimum
• Maximum number of codes per label: 10
No-Scan Zone
Allow approximately a 0.50-inch (13 mm) at the trailing edge of each label
for the no-scan zone. The trailing edge is the edge of the label that exits
the printer last; regardless of how the format is designed on the label.
Do not place bar codes in the no-scan zone.
2-14 Operating Instructions
Trailing Edge
Leading Edge
4" w ide b y 1.2" tall label
Shaded
area
(trailing
edge) is
the no-
scan zone.
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