User's Manual

NT210 User’s manual

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2) LED and error message

Error Type Description Error LED display mode Recover

Print head is overheating

Temperature of the

print head is too

high.

Recover automatically when the

temperature of print head falls down.

Paper end

Paper sensor detects

paper end.

Recover automatically when reloading

paper.

Voltage is abnormal

Voltage is too high or

too low.

Replace the normal power supply

Table 3.2-2

Caution:

 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 70℃.