3-26 Phaser 7400 Color Printer Service ManualJam in Duplex UnitMedia reached Duplex Reverse Sensor, but did not leave the Duplex Unit on time.This error represents a misfeed jam inside the Duplex Unit.Applicable Status Code:Code D2: Jam in Duplex UnitInitial Actions:■ Cycle printer power.■ If the problem persists, follow the procedure below.Troubleshooting Reference TableApplicable Parts Wiring and Plug/Jack References■ Duplex Unit, PL16.1.0 ■ Print Engine Motor Driver Board (5/6) (page 10-35)■ Options Map 4, Duplex Unit Controller Board■ Options Duplex Unit Sensors and Interconnect WiringTroubleshooting Procedure TableStep Actions and Questions Yes No1 Ensure the correct weight and type ofpaper is loaded in the tray.Does the media meet specifications?Go to Step 2. Run several testprints.If a jam persists, goto Step 2.2 Check for and remove any dirt, debris orobstructions in the paper path around theDuplex Unit.Did this correct the problem?Complete Go to Step 3.3 Clean and check the Duplex Unit rollers.Do the rollers move freely and are free ofdirt or debris?Go to Step 4. Replace the DuplexUnit.4 Test the Duplex Entrance, Reverse, Front,and Rear actuators and sensors usingService Diagnostics.Do the sensors function correctly?Go to Step 5. Replace the DuplexUnit.5 Test the Duplex Motors.Do the motors function correctly?Go to Step 6. Replace the DuplexUnit.6 Inspect the DUPLEX harness. If defective,replace the wiring harness.Is the harness properly seated and freefrom defects?Replace the MotorDriver Board(page 8-141).Replace the DuplexUnit.
