NCR 7870 manual Active Scan Zone, Multiple Reads

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.

6.0 in.	5.8 in.
	(14.7 cm)

(15.2 cm)

5.0

(12.7 cm)

Scan Zone

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.