Xerox Fault Code 043-343 ^new^ – Fresh

the machine back directly into a verified wall outlet (avoid surge protectors during testing).

If the link bar remains completely stationary during the engine test, focus on the mechanical drive and solenoid path:

Whether you hear any when the machine starts up

The Main Control Unit (MCU) is failing to send the correct voltage or read the motor's speed sensor. Xerox Fault Code 043-343

: Inspect the internal path for any bits of paper or debris that might be blocking sensor movement. ⚙️ Technical Diagnostics

If a drum cartridge is misaligned, the motor gears will not mesh properly. Open the front cover of the Xerox printer.

Observe if the link bar moves up and down. If it does not move, inspect the drive gears for damage. Electrical Testing: the machine back directly into a verified wall

A defective or improperly installed toner cartridge or waste toner bottle can block the drive gears.

If the power cycle doesn't clear the error, this is usually a requiring a technician. Parts likely needed : Main Drive Motor or IBT Drive Motor.

Locate the Main Motor drive assembly (usually at the rear of the machine). ⚙️ Technical Diagnostics If a drum cartridge is

2. Investigating Mechanical and Solenoid Faults (When Link Bar Fails)

Temporary corruption in the printer's volatile memory or NVRAM can cause false positive readings from the motor sensors.

Inspect the gold electrical contacts on the back of each cartridge for dirt or toner buildup. Clean them gently with a dry, lint-free cloth.