80 Phaser 5400 Laser Printer Service GuideRAP 19 Close Stacker DoorThe Rear Cover is open.Table 39 Close Stacker Door Troubleshooting ProcedureStep Actions and Questions Yes No1 OPEN/CLOSE REAR COVEROpen and close the HCS Rear Cover.Does the error code still appear?Go toStep 2.Problemsolved.2 REAR COVER INTERLOCK SWITCHINSPECTIONOpen the HCS Rear Cover and check the Rear CoverInterlock Switch.Is the Rear Cover Interlock Switch in goodcondition and does the actuator move freely?Go toStep 3.Replace theHCS RearCoverInterlockSwitch[RRP 10.9,page 326].3 REAR COVER INTERLOCK SWITCH TEST1. Enter Diagnostics mode.2. From the Main Menu, select Component Test / SensorInput / press [4] to start, [0] to stop.3. Actuate and deactuate the Rear Cover InterlockSwitch.Does the LCD counter increment each time youpress and release the actuator?Replace thePrint EngineControllerBoard[RRP 8.5,page 310].Go toStep 4.4 ìNOî FROM STEP 3 ABOVE1. Switch printer power OFF.2. Remove the HCS Front Cover [RRP 10.4, page 321].3. Disconnect P/J524 from the HCS Board.4. Switch printer power ON.5. Measure the voltage between P524-1 and frameground.Does the voltage measure +3.2 VDC?Go toStep 8.Go toStep 5.5 ìNOî FROM STEP 4 ABOVEMeasure the voltage between P/J514-6 and frameground.Does the voltage measure +3.2 VDC?Replace theHCS Board[PL 10.2,page 410].Go toStep 6.6 ìNOî FROM STEP 4 ABOVE1. Switch printer power OFF.2. Remove the Left Side Cover [RRP 1.1, page 250] andthe Print Engine Controller Board Cover [RRP 8.5,page 310].3. Measure the voltage between P/J19-11 and frameground.Does the voltage measure +3.2 VDC?Go toStep 7.Replace thePrint EngineControllerBoard[RRP 8.5,page 310].7 ìYESî FROM STEP 6 ABOVECheck for continuity between P/J19-11 and P/J501-3,then between P/J504-6 and P/J514-6.Is there continuity between both sets of pins?Replace theDuplexInterfaceBoard[RRP 8.3,page 308].Repair orreplace theHCSHarness[PL 10.2,page 410].
