Dell MH941 - Manual (Page 9)

6
Audible Indicators
There are audible indications that signal the status of your scanner. These
indications are dependent upon the decoder being used. The function of these
indications may not work as described below if using a decoder not manufactured
by Metrologic.
When the scanner is in operation, it will provide warnings with audible
indications. These sounds signal the status of the scan and scanner.
One Beep When the scanner first receives power, the red LED
will blink, followed by the green LED, and then the
scanner will emit one beep. After the scanner
performs this startup sequence, the scanner is ready
to scan.
The green LED will flash and beep once when the
unit successfully reads a bar code. If the green LED
does not flash or the scanner does not beep once,
then the bar code has not been successfully read.
Razzberry Tone If, upon power up, the scanner emits a razzberry
tone, then the scanner has failed diagnostics. Report
this problem to the company where the scanner was
purchased.