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Longer LK4 PRO FDM 3D Printer Instruction Manual
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K4 INSTRUCTION MANUAL
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Safety Precautions
1. The temperature of the nozzle parts can reach 250 °C during the operation of the machine. To ensure your safety, it is forbidden to touch the model and nozzle directly with your hand
while the printer is printing or cooling.
2. During the operation of the machine, it is forbidden to reach into the machine to prevent pinching.
3. The working voltage is 110~220V AC voltage 50HZ AC. The three-pin socket must be grounded. Do not use other power sources to avoid damage to components or fire, electric
shock, and other accidents.
Note: Before powering on, please check whether the input voltage value of the switching power supply meets the voltage standard of the country or region.
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