Xerox Fault Code 043-343 -

If the mechanics function but the error remains, the sensor feedback loop is broken.

Before calling a service technician or opening the back covers of your machine, execute these basic resets to rule out transient firmware glitches or loose consumables. Xerox Fault Code 043-343

The physical photo-interrupter sensor fails to detect the movement or positioning of the internal link bar assembly. If the mechanics function but the error remains,

Swap or test scanner motor/board (for technicians) Xerox Fault Code 043-343