E R R O R C O D E L I S T 11U Series--Print Hardware ErrorsThese errors are generated by the print engine to indicate that problems havebeen sensed in any of a number of areas of the printer. If these errors occur,the printer will not continue to operate. Perform the corrective action andcontact Xerox Customer Service if the error persists.Window Message Probable Cause CorrectiveActionU0 - ROM ERRORPOWER OFF/ONEngine ROM error. Turn printer OFFthen ON. If problempersists, contactCustomer Service.U1 - RAM ERRORPOWER OFF/ONEngine RAM error. Turn printer OFFthen ON. If problempersists, contactCustomer Service.U2 - NV-RAM ERRORCALL SERVICEEngine NVRAMerror.Turn printer OFFthen ON. If problempersists, contactCustomer Service.U3 - COMM. FAULTPOWER OFF/ONEngine/ESScommunicationfailure.Turn printer OFFthen ON. If problempersists, contactCustomer Service.U4 - OPTICS FAULTPOWER OFF/ONLaser system error. Turn printer OFFthen ON. If problempersists, contactCustomer Service.U5 - POLYGON FAULTPOWER OFF/ONPolygon motor error. Turn printer OFFthen ON. If problempersists, contactCustomer Service.U6 - MOTOR FAULTPOWER OFF/ONDeveloper motorerror.Turn printer OFFthen ON. If problempersists, contactCustomer Service.U7 - MOTOR FAULTPOWER OFF/ONMain motor error. Turn printer OFFthen ON. If problempersists, contactCustomer Service.
