Xerox Fault Code 043-343

Xerox Fault Code 043-343: An Informative Review

Overview
Fault code 043-343 is a specific chain jam error on Xerox digital presses. It indicates that the paper has successfully passed through the registration rollers but has not triggered the Inverter Exit Sensor within the expected timing window. In simpler terms: the machine fed the paper, but the sensor at the exit of the inverter unit did not detect it on time—or at all.

2. User-Friendly Fault Code Display

• Shows on control panel:
  Fault 043-343 – IOT NVM Mismatch
• Plain-language suggestion:
  “Printer engine memory mismatch. Run NVM Auto-Sync or restore defaults.”

• Registration rollers
• Feed belts
• Sensor lenses (small transparent windows)

Often the root cause if gears are stripped or the solenoid is failing. Drive PWB: If electronic signals are not being processed correctly. Xerox Fault Code 043-343