A detection error in the Yellow, Magenta, and Cyan (YMC) link sensor.
If electrical and mechanical checks fail, sequential replacement of the Drive Assembly , Drive PWB , and finally the ESS PWB may be required to resolve the fault. Xerox Fault Code 043-343
For technicians or those comfortable with hardware diagnostics, the following steps are used to isolate the failing component: 1. Initialize the 1st BTR (Bias Transfer Roller) Enter diagnostic mode and run code . Observe if the operating link bar moves up and down. Cause: A detection error in the Yellow, Magenta,