Xerox Phaser 6120 error and solving error codes – Compatible Printer model: Xerox Phaser 6120 – Xerox Phaser 6120 Error Codes with quick guides: Code: 04 Description: Engine Board Malfunction Causes: PWB-A (Engine Control Board) Troubleshooting Guides: 1 Check the PWB-A connector for proper connection and correct as necessary. 2 Change PWB-A. Code: 05 Description: […]