Scanning; Using The Scanner - Symbol PDT 7500 Series Product Reference Manual

There are two ways to adjust the display's contrast and backlight, and the speaker volume on
the PDT 7500:
establish the initial values using the setup utility (refer to Chapter 8, Terminal
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Configuration: Setup).
Contrast can be adjusting be pressing the FUNC key, then either the light or dark key.
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adjust the values through an application, if allowed by the software.
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Scanning

The PDT 7500 offers two scanning capability options:
1-D standard
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PDF417 scanning.
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Note: The scanning application and scanner driver must be loaded on the
terminal to perform scanning.

Using the Scanner

To use the integrated laser scanner:
1. Verify that the system is on (the display is active).
2. Ensure that a scanning-capable application is loaded and running, and that the
application is in a state to allow scanning.
3. Aim the scan window at the bar code.
4. Adjust the aim so that the thin, red laser beam covers the entire length of the bar
code.
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Optimal scanning distance varies with bar code density and scanner optics, but most
combinations work within 4 to 10 inches. Generally:
" Hold the scanner farther away for larger symbols.
" Move the scanner closer for symbols with bars that are close together.
Operating the Terminal
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