Xerox Fault Code 043-343 May 2026

For 90% of persistent Xerox Fault Code 043-343 errors, replacing the fuser unit is the definitive solution. If your machine has a user-replaceable fuser (part numbers vary by model, e.g., 115R00099 for Color 560/570), order a genuine Xerox OEM replacement. Remanufactured fusers often cause recurring errors.

While replacing a user-replaceable fuser is straightforward, you should call a trained technician if: Xerox Fault Code 043-343

Fault Code 043-343 is triggered when the printer's internal sensors detect that the waste ink container or the overflow reservoir within the IMS is at maximum capacity, or that the mechanism responsible for removing waste ink has failed. For 90% of persistent Xerox Fault Code 043-343

The logic flow is as follows:

What users like:

What users dislike:

Overall reliability:
On a scale of 1–10 (10 = easy fix), this code ranks a 6. It’s not catastrophic, but it’s easily misdiagnosed as a simple jam. Most owners solve it with a deep clean of the inverter path. What users dislike:

Manually rotate gears – should feel smooth, not gritty.