Ratiotec RTP 300 Instruction Manual - page 12
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Over-voltage protection
When input voltage is too high, printer will turn to over-voltage protection mode and the three
indicating lights (Charge, Power and Error) flash .
Low charge warning
When battery charge is too low, the power light blinks . Please charge the printer with the power
supply .
• Since the thermal print head is a heating component, please do not touch the print head
or the surrounding parts when/after printing .
• Connect power supply to a suitable power socket . Please do not share the same power socket
with large electrical machines or other devices that may cause fluctuation in voltage .
• Do not use printer when it is out of paper, print head can be damaged .
• Please disconnect the power supply after using .
• Do not disassemble the printer or parts of it .
• Before plugging in or out the power supply, make sure printer is turned off .
• After connecting the printer to a peripheral device, turn on the peripheral device first and then
the printer . To turn off, please turn off the printer first and then the peripheral device .