1，Please carefully check whether the machine is a printhead problem
2，Before the nozzle of the machine is damaged, especially if it leaks ink, some will burn the motherboard.If the nozzle is directly replaced after the motherboard is burned, the nozzle may be burned out, so the motherboard must be faulty before replacing the new nozzle. Exclude, such as detecting whether the fuse on the main board and the pair of tubes are burnt out and the fuse F1 and F2 of the main board can only be replaced with the original, the insurance with the same current value, and the tube can only be replaced with the same model of the original, replace the insurance with high current value or Different types of alignment tubes may burn out the nozzle and the motherboard. Note (some motherboards cannot be repaired manually and must be replaced to solve the problem)
3，Pay attention to the daily maintenance of the nozzle (you can use the nozzle moisturizing fluid to maintain the nozzle, so that the nozzle will not be blocked), the expensive things such as the nozzle should be used carefully.
