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16
SCANNER OPERATION
Visual Indicators
There are four LEDs located on the top of the MS3780. When the scanner is on,
the flashing or constant illumination of the LEDs indicates the status of the
current scan and the scanner.
Figure 18. LED Indicators
No LEDs
The LEDs will not be illuminated if the scanner is not receiving power from the
host or transformer. They are also not illuminated when all lasers are turned off
for any reason.
Steady Blue Single-Line LED
Indicates the laser is active and the scanner is in Single-Line Mode.
The blue LED will remain illuminated until the laser is deactivated.
Steady Blue Omni LED
Indicates the laser is active and the scanner is in the Omnidirectionsl Mode.
The blue LED will remain illuminated until the laser is deactivated.
Steady Blue Single-Line or Omni LED and a Single White LED Flash
When the scanner successfully reads a bar code, the white LED will flash and
the scanner will beep once. If the white LED does not flash or the scanner does
not beep, then the bar code has not been successfully read.
Steady White and Blue Single-Line or Omni LED
After a successful scan, the scanner transmits the data to the host device. Some
communication modes require that the host inform the scanner when data is
ready to be received. If the host is not ready to accept the information, the
scanner’s white LED will remain on until the data can be transmitted.
Alternate Flashing of Both Blue LEDs and the White LED
This indicates the scanner is in program mode. A razzberry tone indicates that
an invalid bar code has been scanned in this mode.
Steady Amber LED
Indicates that CodeGate is not active (in-stand default).