3-18 Phaser 7400 Color Printer Options Service ManualJam at Duplex EntranceMedia reached the Fuser Exit Sensor, but did not reach the Duplex Entrance Sensoron time. This error represents a jam at the Duplex entrance or in the Exit Assembly.Applicable Status Code:Code TC3: Jam at Duplex EntranceInitial Actions:■ Check for obstructions or debris in the output paper path.■ Reseat the Duplex Unit.■ Cycle printer power.■ If the problem persists, follow the procedure below.Troubleshooting Reference TableApplicable Parts Wiring and Plug/Jack References■ Duplex Unit■ Duplex Entrance Sensor■ Exit Assembly (see Book 1)■ Fuser Motor, (see Book 1)■ Motor Driver (see Book 1)■ Print Engine Map 5 (see Book 1)■ Options Map 4, Duplex Unit Controller Board.■ Options Duplex Unit Sensors and InterconnectWiringTroubleshooting Procedure TableStep Actions and Questions Yes No1 Check the following for evidence of fault ordamage:■ Duplex Unit■ Exit Gate■ Exit Assembly■ Duplex GateAre there any defects?Replace anydamaged parts.Go to Step 2.2 Test the Duplex Entrance Sensor.Run the Service Diagnostics DuplexEntrance (IN1) Sensor test.Does the sensor function correctly?Go to Step 4. Replace the DuplexEntrance Sensor, ifthe error persists,go to Step 3.3 Check DUPLEX Harness continuity.Is the DUPLEX Harness conductive?Go to Step 4. Replace theDUPLEX Harness.4 Print a test print in Duplex modeDoes the sheet reverse in the printer?Go to Step 6. Replace the DuplexUnit. If the errorpersists, go toStep 5.
