Phaser 4500/4510 Service Manual 3-65Error Messages and CodesNo Paper in Tray 3/No Paper in Tray 4Error IndicationsNo Paper in Tray 3No Paper in Tray 4Troubleshooting ReferenceApplicable Parts Wiring and Plug/Jack Map References■ HVPS/engine logic board■ LVPS■ No paper sensor■ No paper actuator■ Optional 150-sheet paperfeeder■ 550-sheet paper cassette■ “550-Sheet Feeder General Wiring Diagram” onpage 10-32■ “550-Sheet Feeder Signal Diagram” onpage 10-33■ “550-Sheet Feeder Plug/Jack Locator” onpage 10-12Troubleshooting ProcedureSteps Actions and Questions Yes No1 Is there any paper in tray 3 or tray 4? Go to step 2. Add paper.2 Is the bottom plate assembly(PL20.3.10) lifted correctly?Go to step 3. Remove the550-Sheetpaper cassette,then re-install itcorrectly.3 1. Remove the paper cassette.2. Manually operate the no paperactuator.Does the no paper actuator movesmoothly?Go to step 4. Replace the nopaper actuator.4 Check the no paper sensor:1. Remove the print cartridge.2. Enter Service Diagnostics, and fromthe Sensor Tests menu select thetray 3 or tray 4 No Paper test.3. Manually operate the no paperactuator.Does the sensor correctly report theposition of the sensor actuator?Replace theHVPS/enginelogic board(page 8-73).Go to “Optional550-SheetFeeder NoPaper Sensor”on page 4-41.
