Error Codes - Datalogic QuickScan QM2400 Quick Reference Manual

Error Codes

Upon startup, if the reader sounds a long tone, this means the
reader has not passed its automatic Selftest and has entered
FRU (Field Replaceable Unit) isolation mode. If the reader is
reset, the sequence will be repeated. The following table
describes the LED flashes/beep codes associated with an
error found.
Number of
LED Flashes/
Beeps
1
2
6
12
Quick Reference Guide
Error
Configuration
Interface PCB
Digital PCB
Imager
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Error Codes
35