SETTING UP PRINT JOB SOURCES• Step switchWhen the magnetic tape drive is in diagnostic test mode,press the Step switch to advance diagnostic test numbers. Ifthe magnetic tape drive is online, there is no responsebecause the maintenance and diagnostic functions do notoperate in the online mode.• Execute switchWhen the magnetic tape drive is in diagnostic test mode,press the Execute switch to start the diagnostic test indicatedby the numbers in the two-digit display window. If themagnetic tape drive is online.• CE switchThis switch aids the service representative with specialdiagnostics. If the magnetic tape drive is online, there is noresponse because the maintenance/diagnostic functions donot operate in the online mode.CAUTION: This switch is used for higher-level diagnostics,which only a service representative can interpret. Improperuse could cause incorrect status codes and responses, orinformation on the magnetic tape could be destroyed.Powering on the tape driveFollow these steps to power on the tape drive:1. Open the tape transport door. The power switch is locatedin the upper-right corner of the tape deck.2. Press down the side of the Power switch marked 1.Loading a 9-track tapeFollow these steps to load a 9-track tape:1. Press the large button in the center of the supply hub (thelatch release) to unlock the hub. Place the job tape reelfirmly on the hub, with the read/write ring side (if applicable)facing away from you.XEROX 4050/4090/4450/4650 LPS OPERATOR GUIDE 3-9
