Epson ME400-ME401 Error 0x89 Epson ME400-ME401 printers occasionally display the error code 0x89, indicating an Insufficient Light error. This error can be caused by various issues, such as PIS failure, Fault Detection Plate failure, Main board failure, or Ink cartridge failure. PIS failure refers to the malfunctioning of the Paper Insertion Sensor, which detects the…