Trouble Shooting
| Step | Cause | Solution | Parts |
| 2 | Duplex sensor defective. | Replace the SBA234 | Duplex sensor (004-2714-9-SP) |
| 3 | Duplex roller failed. | Replace the duplex unit. | Pleaes contact service people: [email protected] |
| 4 | Main board defective. | Replace the main board. <Video Link> | Main board (Please refer to service parts table) |
