The fault code 394-910 on the Xerox WorkCentre 7220 / 7225 may also display the error message IBT Unit (Transfer Belt Unit) or 2nd BTR (Second Bias Transfer Roller) Unit Not In Position. The error is a hardware issue. Please try removing and reinstalling the identified unit. IBT Unit or 2nd BTR Unit. Power off for 30 seconds and Power back on. If the error message returns a service technician will need to look at the machine to troubleshoot the issue. Please contact your local service provider.