The Epson WorkForce 645 545 Printer Main Logic Board 2138556 is a printer main board specifically designed for Epson printers. It is compatible with the Epson WorkForce 545 and 645 series and is manufactured in Japan. This logic board is essential for controlling various functions of the printer, ensuring reliable performance and high-quality printing results. With this main board, users can trust that their Epson printer will operate efficiently and effectively.