Trouble Shooting
| Step | Cause | Solution | Parts |
| 1 | Toggle switch defective (for main, 2, 3, 4 size unknown). | Replace the toggle switch of fail tray. | Toggle switch (102-0054-9-SP) |
| 2 | Manual tray sensor defective (size unknown). | Replace the manual tray sensor SBA298. | Manual tray sensor (004-3403-9-SP) |
| 3 | Tray control broad defective (for 2,3,4 tray size unknown). | Replace the tray control broad MBA762. | Tray control broad (004-2882-9-SP) |
| 4 | Main broad defective (main & manual tray size unknown). | Replace the main board MBA890. | Main board: AM7630i (004-3479A-9-SP) AM7640i (004-3479B-9-SP) AM5630i (004-3479C-9-SP) AM5640i (004-3479D-9-SP) |
