Phaser 4500/4510 Service Manual 3-35Error Messages and Codes4 1. Remove the paper cassette.2. Check if the bottom plate assemblylifts while installing paper cassette.3. Push the bottom plate assemblydown and release; check themovement.4. Check visually if the bottom plateassembly is inclined to right or left.Does the bottom plate assembly liftand drop smoothly when installingthe paper cassette?Go to step 5. Replace thepaper cassette.5 Is the Side Guide too tight against thepaper?Slightly widenthe Side Guide,and run thepaper again.Go to step 6.6 1. Remove the print cartridge.2. Check the gear assembly housingfor rotationDoes each gear of the gear assemblyhousing rotate normally?Go to step 7. Check operationand mounting ofgear assemblyhousing, andthen go to “PrintEngineTroubleshooting” on page 4-11.7 Check the paper position:Remove the print cartridge.Does the leading edge of the papertouch the actuator of the registrationsensor?Go to step 8. Go to“RegistrationSensor” onpage 4-17.8 Inspect the retard roller in eachinstalled paper cassette.Is the retard roller clean andinstalled correctly?Go to step 9. Replace theretard roller(page 8-13,page 8-93).9 Check the paper feeding tray.Is the paper for test printing suppliedfrom tray 1 or tray 2?Go to step 10. Go to step 12.10 Enter Service Diagnostics, and fromthe Clutch Tests menu select theappropriate feed clutch test.Does the feed clutch assemblyoperate normally?Go to step 15. Go to “FeedClutches” onpage 4-30.11 Manually rotate each gear and roller inthe 150-sheet feeder.Does each gear and roller rotatesmoothly?Go to step 12. Replace the150-sheetfeeder assembly(page 8-15).12 Check the paper feeding tray.Is the paper for test printing suppliedfrom tray 3 or tray 4?Go to step 13. Return to step 9.Troubleshooting Procedure (continued)Steps Actions and Questions Yes No