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flaneSep 6, 2025
What to do if self-test print is abnormal on Epson LX-300+?
- VVanessa WeissSep 6, 2025
If your Epson printer's self-test print is abnormal, ensure that all connectors from CN3 to CN12 are properly connected to the main board. If the printhead driver is defective, replace the main board. Adjust Bi-D if it is not correct. If the printhead is defective, replace it. If the head FFC is not connected properly or broken, replace it. You can also adjust the platen gap.