Symbol PDT 7500 Series Product Reference Manual page 59

1. Center the symbol in any orientation within the aiming pattern. Be sure the entire
symbol is within the rectangular area formed by the brackets in the aiming pattern.
Figure 4-7. Centering Symbol in Aiming Pattern
The Imager can also read a bar code presented within the aiming pattern but not
centered, such as the figure below on the left. The figure on the right, however, can
not be decoded.
Figure 4-8. Acceptable and Incorrect Aiming
2. The aiming pattern is smaller when the Imager is closer to the symbol and larger
when it is farther from the symbol. Scan symbols with smaller bars or elements (mil
size) closer to the unit, and those with larger bars or elements (mil size) farther from
the unit.
3. Hold the terminal between two and nine inches (depending on symbol density) from
the symbol, centering the aiming pattern cross hairs on the symbol.
4. Press and hold the scan button until the terminal beeps, indicating the bar code is
successfully decoded.
Linear bar code
View Finder
(Aiming Pattern)
PDF417 symbol
Symbol
Operating the Terminal
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