1. Cassette paper feed section
2. MP tray paper feed section
3. Paper conveying section
4. Optical section
5. Laser scanner unit
6. Drum unit K
7. Drum unit M
8. Drum unit C
9. Drum unit Y
10. Developer unit K
11. Developer unit M
12. Developer unit C
13. Developer unit Y
14. Toner container section
15. Primary transfer section
16. Secondary transfer/Separa-
tion sections
17. Fuser section
18. Eject/Feed shift sections
19. Duplex section