Q: How do I troubleshoot Fault Code 043-343? A: Follow the step-by-step troubleshooting procedures outlined in this article, including restarting the printer, checking for paper jams, verifying duplex module alignment, cleaning the printer, and updating firmware.

: If diagnostic tests fail, you may need to replace the following parts: Drive Assembly (PL 40.05 Item 1) Drive PWB (PL 1.10 Item 3) ESS PWB (PL 3.10 Item 6) Expert Insight

Observe if the link bar moves up and down. If it does not move, inspect the drive gears for damage. Electrical Testing: