Xerox WorkCentre 3550 Parts Catalog page 1. HVPS 2. SMPS 3. User Interface 4. Main PWB and Main Drive Assembly 5. Main Drive Assembly 6. DADF (1 of 7) 7. DADF (2 of 7) 8. DADF (3 of 7) 9. DADF (4 of 7) 10. DADF (5 of 7) 11. DADF (6 of 7) 12. DADF (7 of 7) 13. LSU 14. Bypass Feed Assembly (1 of 2) 15. Front Cover Assembly 16. Paper Tray 17. Tray 2 Assembly (1 of 2) 18. Tray 2 Assembly (2 of 2) 19. Rear Cover Assembly 20. Registration Rolls 21. Print Cartridge 22. Fuser Assembly (1 of 3) 23. Fuser Assembly (2 of 3) 24. Fuser Assembly (3 of 3) 25. Duplex Drive Assembly 26. Front Duplex Guide Assembly 27. Duplex Assembly (1 of 3) 28. Exit Feed Assembly 29. Exit Cover Assembly 30. Stapler Assembly 31. Scanner Assembly 32. Main Covers All About this machine Parts Code: SMPS We do not sell these spare parts!We only help you to create your parts list for request from your suppliers. Ref. Parts Code Description Remark - 105N02143 SMPS (220V) (REP 1.1) 1 127N07354 SMPS fan 3 105N02119 SMPS (110V) (REP 1.1) 9 127N07559 Main fan