4-6 Phaser 6300/6350/6360 Service ManualGeneral TroubleshootingService DiagnosticsService Diagnostics provides tests for most electro-mechanical componentsin the printer. Service Diagnostics also contains test prints, printer status andsome NVRAM access. If confronted with an error that requires more than acursory investigation to clear or when directed by a troubleshootingprocedure, use Service Diagnostics to exercise selected sub-assemblies ofparts in the vicinity of the reported error. Tests are controlled from the ControlPanel and are described in detail in the Appendix.The Service Diagnostics Main menu offers the options listed in the followingtable.Using Service DiagnosticsThe printer’s operating system monitors sensors located throughout the printengine and attached options. Sensor signals are used to monitor paperhandling and mechanical activity along the entire paper path. As a sheettravels along the paper path, sensors change state temporarily to indicate thesheet’s presence. If the pattern of sensor state changes differs from theexpected timing for a particular paper size and path, the sensor where thetiming difference occurs identifies the error to report.However, having the error message information doesn’t necessarily pinpointthe problem. Sensor signals locate where, but often cannot identify why.Motors, belts, gears, solenoids, and numerous other parts are involved inpaper transport. The Service Diagnostics’ suite of tests and utilities are thebest tools available to pinpoint the root cause behind the reported error.Service Diagnostics Main MenuMenu Item Test TargetPrint Service Menu Map Prints the Service Diagnostics menu map.General Status Query information about the status, versions, andcounts.Test Prints Isolate problems with Xerographics and paper handling.Motors/Fan Tests These tests exercise each motor or fan.Sensor/Switch Test Tests sensor status and operation.Clutch Tests Tests clutch function.Solenoid Tests Tests solenoid function.Maintenance Clean the IDT rollers in the Imaging Unit.NVRAM Access Reset PostScript or all NVRAM.IP Controller Diagnostics Tests the Image Processor Board.Exit Exits Service Diagnostics and reboots the printer.
