Battery Malfunction - Epson TM-P20 Technical Reference Manual

Battery malfunction

If the battery has been charged for about five hours but cannot be fully charged, it is considered as a
malfunction, and Charge LED flashes. If this happens, you cannot use the same battery again. Replace with
another battery.
Condition
Battery malfunction
Outside the
temperature range
allowed for charging
The Charge LED is located on the single charger (OT-SC20).
 When Charge LED is flashing while the power is off, it indicates one of the two possible conditions: battery
malfunction or outside the temperature range allowed for charging. To distinguish battery malfunction, turn the
power on, set the roll paper, and check the Error LED and Charge LED while the roll paper cover is closed.
78
When the power is ON
Power LED Error LED
: On
When the power is OFF
Charge
Power LED
LED
: flashes : Off
Charge
Error LED
LED
*