Error Messages and Codes 3-77Top Output Tray Is Full, Unload PaperThe Full Stack Sensor indicates the output tray is full.Initial Actions:■ Ensure that the output tray is empty and the actuator is in the correctposition.■ Cycle printer power.■ If the problem persists, follow the procedure below.Troubleshooting Reference TableApplicable Parts Wiring and Plug/Jack References■ Full Stack Sensor, PL11.1.39■ Full Stack Sensor Actuator■ SNS Harness, PL11.1.35■ Print Engine Map 7 (page 10-10)■ Print Engine Map 11 (page 10-14)■ Print Engine Rear Sensor Board (page 10-29)Troubleshooting Procedure TableStep Actions and Questions Yes No1 Check the following for evidence of fault ordamage:■ Full Stack Sensor■ Full Stack Sensor ActuatorReplace the partsconcerned.Go to Step 2.2 Test the Top Output Tray Full Stack Sensor.Run the Service Diagnostics Face DownStack Full Sensor test.Does the sensor function correctly?Replace the EngineControl Board(page 8-112).Go to Step 3.3 Check the Full Stack Sensor connection.Is P/J160 connected?Go to Step 4. Reconnect thesensor.4 Replace the Top Output Tray Full StackSensor.Does the error persist?Go to Step 5. Complete5 Check all pins on the SNS HarnessPL5.3.28 for continuity.Is the harness conductive?Replace the EngineControl Board(page 8-112).Replace the SNSHarness.
