Metrologic Instruments MS2220 Scanner User Manual


 
32
SCANNER OPERATION
INDICATOR DESCRIPTIONS
Visual (Continued)
Steady Blue and Single White 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 once, then the bar code has not been successfully read.
Steady White and Blue
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.
Flashing Blue then Flashing White
This indicates the scanner is in program mode. A razzberry tone indicates that an invalid bar code has been scanned in
this mode.
or
If the unit is in sleep mode, each LED will flash once every 15 seconds.
Steady White, Blue Off
This indicates the scanner may be waiting for communication from the host.
Flashing Blue
This indicates there is an error active on the diagnostic indicator display (see Error Codes on page 33). The scanner may
continue to operate depending on the type of error.
Steady Amber LED
The amber LED is illuminated when the scale is at zero.
Failure Modes
Flashing Blue and One Razzberry Tone
This indicates that the scanner has experienced a laser subsystem failure. The scanner will try up to 3 times to correct
the failure condition. If the laser subsystem continues to fail, that subsystem (horizontal or vertical) will be shut down and
an error indication will be shown on the Diagnostic Indicator Display. This error stays on the display until corrected. If the
remaining subsystem is still operational, scanning will continue using the operational components.
Flashing Blue and White and Two Razzberry Tones
This indicates that the scanner has experienced a motor subsystem failure. The scanner will try up to 3 times to correct
the failure condition. If the motor subsystem continues to fail, that subsystem (horizontal or vertical) will be shut down and
an error indication will be shown on the Diagnostic Indicator Display. This error stays on the display until corrected. If the
remaining subsystem is still operational, scanning will continue using the still operational components.
Continuous Razzberry Tone with Both LEDs Off
If, upon power up, the scanner emits a continuous razzberry tone, then the scanner has an electronic failure. Return the
unit for repair at an authorized service center.
Three Beeps - On Power Up
If the scanner beeps 3 times on power up then, the nonvolatile memory that holds the scanner configuration has failed.
Return the unit for repair at an authorized service center.