112 Phaser 5400 Laser Printer Service GuideRAP 39 Registration Clutch.Table 63 Registration Clutch Troubleshooting ProcedureStep Actions and Questions Yes No1 PROCEDURE1. Enter Diagnostics mode.2. From the Main Menu, select Component Test / Reg.Clutch / press [4] to test, [0] to stop.Can you hear the Registration Clutch energize?Go toStep 8.Go toStep 2.2 ìNOî FROM STEP 1 ABOVE1. Switch printer power OFF.2. Remove the Left Side Cover [RRP 1.1 on page 250]and remove the Print Engine Controller Board Cover[RRP 8.5 on page 310].3. Disconnect P/J22 on the Print Engine ControllerBoard.4. Measure the resistance between pins 1 and 2 on thedisconnected plug.Is the resistance approximately 170 to185 ohms?Go toStep 4.Go toStep 3.3 ìNOî FROM STEP 2 ABOVE1. Remove the Print Cartridge and the MBF Assembly[RRP 2.1 on page 259].2. Disconnect P/J222 from the Registration Clutch.3. Check for pin to pin continuity between P22 and P222.Is there continuity between both pins?Replace theRegistrationClutch[RRP 4.3 onpage 286].Repair orreplace theRegistrationClutchHarness asnecessary[PL 9.1,page 404].4 ìYESî FROM STEP 2 ABOVE1. Switch printer power ON.2. Measure the voltage between P/J22-1 and frameground.Does the voltage between P/J22-1 and frameground measure +24 VDC?Go toStep 6.Go toStep 5.5 ìNOî FROM STEP 4 ABOVEMeasure the voltage between P/J16-9 and frameground.Does the voltage between P/J16-9 and frameground measure +24 VDC?Replace thePrint EngineControllerBoard[RRP 8.5 onpage 286].Replace theLVPS[RRP 8.6 onpage 312].6 ìYESî FROM STEP 4 ABOVE1. Switch printer power OFF.2. Reconnect P/J22.3. Enter Diagnostics mode.4. From the Main Menu, select Component Test / Reg.Clutch.5. Measure the voltage between P/J22-2 and frameground.6. While watching the voltmeter, press [4].Does the voltage drop from +24 VDC to 0.0 VDC?Go toStep 7.Replace theRegistrationClutch[RRP 4.3 onpage 286] orPaperTransportAssy[RRP 4.1 onpage 283].
