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Chapter 6: Operation 6-5
Active Scan Zone
The active scan window is shown in the following diagram. The 7870
can read labels presented within the cube.
Scan Zone
5.0
(12.7 cm)
6.0 in.
(15.2 cm)
5.8 in.
(14.7 cm)
R0127
Multiple Reads
Only one good read is reported if a label is placed within the scan zone
and left there. Scanner firmware prevents a second read of the same
label if it occurs within a preset time of a good read.
The preset time is tag-programmable from 250 to 1500 milliseconds in
50 millisecond increments. The factory default is 900 milliseconds. To
scan a label a second time, remove the item from the scan zone and
then scan it again after the preset time has elapsed.