Xerox Fault Code 043-343 -

Before tearing apart your printer panels, you should perform standard hardware resets. Microprocessor logic hiccups can sometimes generate false hardware alerts.

If your model allows, reseat all drum cartridges to ensure they are properly engaged with the drive assembly. Xerox Fault Code 043-343

the machine back directly into a verified wall outlet (avoid surge protectors during testing). Before tearing apart your printer panels, you should

Look closely at the main drive gear assembly located behind the imaging units. Use a flashlight to check for cracked gear teeth or foreign objects wedged between the teeth. Step 4: Execute Component Diagnostics (For Technicians) the machine back directly into a verified wall

Turn off the printer using the power button, wait two minutes, and then power it back on.

Inspect the gears on the back of each cartridge. Attempt to rotate them manually by hand. They should spin with minor resistance. If a drum or developer gear is completely locked up, replace that specific consumable.

Input the diagnostic command code to initialize the 1st BTR (Bias Transfer Roller).