Datalogic Scanning QUICKSCAN QD 2300 - Manual (Page 17)

Scan Mode
Product Reference Guide 11
Table 2. LED Indications
Scan Mode
The scanner can be configured to be active in one of two Scan Modes:
Trigger Single Mode — the trigger button must be pressed to scan a bar code.
Stand Mode — the scanner continuously reads regardless of whether the trigger is pressed
To toggle between these modes, see Scan Mode on page 23 .
4 short high beeps
Scanner has not completed initialization. Wait several seconds and scan
again.
Scanner gives a power-up beep after scanning a USB
Device Type. Communication with the bus must be established before the scanner
can operate at the highest power level.
This power-up beep occurs more than once.
The USB bus may put the scanner in a state where power to the scanner
is cycled on and off more than once. This is normal and usually happens
when the host cold boots.
RS-232 Only
1 short high beep A <BEL> character is received and Beep on <BEL> is enabled.
Table 1. Beeper Functions
Beeper Sequence Indication
LED Sequence Indication
Off
No power is applied to the scanner, or the scanner is on and ready to
scan.
Green A bar code was successfully decoded.
Red A data transmission error or scanner malfunction occurred.
NOTE
When the scanner is not used for an extended period of time in Stand
Mode, it enters Sleep Mode. To wake the scanner, press the trigger
button.