3-28 Phaser 7400 Color Printer Options Service ManualJam at Finisher Upper Output TrayMedia remains in the Compiler Tray. This error represents a jam in the Finisher ejectpath.Applicable Status Code:Code FN10: Jam at Finisher Upper Output TrayInitial Actions:■ Cycle printer power.■ If the problem persists, follow the procedure below.Troubleshooting Reference TableApplicable Parts Wiring and Plug/Jack References■ Compiler Tray■ Front and Rear Alignment Guides■ Transport Rollers■ Options Map 8, Finisher Sensor Locator (2/2)■ Options Finisher Controller to Sensors (1/3)■ Options Finisher Controller to Sensors (2/3)Troubleshooting Procedure TableStep Actions and Questions Yes No1 Check the following for evidence of fault ordamage:■ Compiler Tray■ Front and Rear Alignment Guides■ Transport RollersAre there any defects or misalignment?Replace anydamaged parts.Go to Step 2.2 Test the Tray Paper Sensor.Run the Service Diagnostics sensor test.Does the sensor function correctly?Replace the EngineControl Board (seeBook 1).Replace thesensor. If the errorpersists, go toStep 3.3 Check the Processing Tray Sensor signalat the Finisher Control Board.Actuate the sensor.Does the voltage across CN5-9 <=>ground change when the sensor isactuated?Replace theFinisher ControlBoard (page 5-46).Replace theharness.