T-40 User’s Manual
7
3.2 LED and buzzer
1) Functions of LED
LED name
Status
Description
Power LED
(green)
Always on
Printer power is on.
Off
Printer power is off.
Error LED
(red)
Off
Printer is in normal status.
Flash
Printer is in error status or paper near end status.
Buzzer
Beep
Printer is in error status.
Table 3.2-1 Functions of LED
2) Error type indicated by LED & buzzer
Error Type
Error LED
Buzzer
Print head is overheating
Cycle flash 6 times
Cycle beep 6 times
Printer voltage is abnormal
Cycle flash 5 times
Cycle beep 5 times
Cutter error
Cycle flash 4 times
Cycle beep 4 times
Print head lift-up
Cycle flash 3 times
Cycle beep 3 times
Paper end
Cycle flash 2 times
Cycle beep 2 times
Paper near end
Cycle flash slowly
No beep
Cannot find mark or mark calibration error Cycle flash slowly
No beep
Table 3.2-2 LED and indication information
Caution:
²
The temperature of the print head is detected by a thermal resistor. If the print head is
overheating, the protective circuit will shut off the power automatically and force the printer
to stop printing; the temperature of print head when printing is stopped is 65
℃
.
