The thermistor is a temperature-sensing resistor that touches the fuser roller. If it becomes coated with toner, dust, or paper fibers, it sends inaccurate temperature readings to the control board. When the MCU detects a discrepancy between the expected temperature and the actual reading, it triggers code 043-343.
Because this is a sensor-level hardware mismatch, standard user-level fixes are limited. However, you should try these steps before calling a technician: : Turn off the printer using the power button. Unplug the power cord for at least 60 seconds . Xerox Fault Code 043-343
: A gear or roller is stuck, preventing the motor from spinning. 📢 Professional Solution Because this is a sensor-level hardware mismatch, standard
If these steps don't resolve the issue, you should contact or a certified technician, as this often requires internal part replacements. If you'd like, let me know: Your printer model (e.g., VersaLink C7025, C8000) If you've recently replaced a toner or drum If the printer makes a grinding noise when starting up Fault Code 043-343: YMC Link Sensor Fail - Xerox Support Fault Code 043-343: YMC Link Sensor Fail. : A gear or roller is stuck, preventing