NCR 7800, User Manual, Page: 40 / 112

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The NCR 7800 can read labels that are presented from several
different angles.
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Depending on the label, good reading distance can range from
0 to 6 inches (0 to 15.2 cm). Therefore, initially present the
label approximately 3 - 4 inches (7.6 - 10.2 cm) from the scan
window and move the label closer if necessary.
The price verifier indicates valid reads by an audible tone. No
tone is generated if the scanner does not detect a valid bar
code.
Program parameters specify whether the audible tone is
enabled or disabled. If enabled, the frequency, duration, and
volume can be specified. Chapter 5, Programming the NCR
7800, provides details for programming audible tone program
parameters.
Label Orientation
Label Distance
Audible Read Indicators