If necessary, the scanner turns on its red illumination LEDs to illuminate the barcode. The scanner decodes barcodes only when the dot is on the barcode. The top example in Figure: Scanner Aiming shows an acceptable aiming option, while the bottom example shows an aiming pattern that will not decode.
Scanner Aiming
The aiming dot is smaller when the scanner is closer to the barcode and larger when it is farther away. Scan barcodes with smaller bars or elements (mil size) closer to the scanner and those with larger bars or elements (mil size)farther from the scanner.
The scanner beeps to indicate that it successfully decoded the barcode. For more information on beeper and LED definitions, see the Scanner Indications Table.
