Epson PX-M5040F Error 0xE4 The Epson PX-M5040F printer is a reliable and efficient printing device, but occasionally, users might encounter error code 0xE4 on the display. This error signifies a CR PID lock error, CR encoder failure, CR motor failure, CR Mechanism overload, detachment of some parts, cable or FFC disconnection, motor driver failure, or…