Basic operation Major systems The product includes the following systems: ● Engine control system ● Laser/scanner system ● Image-formation system ● Pickup-and-feed system ● Document feeder system Product components Figure 1-1 Product components 1 2 3 4 5 13 12 11 10 9 8 7 6 Item Description Item Description 1 Fuser unit 8 Pickup roller 2 Delivery roller 9 Separation roller 3 Print cartridge 10 Registration roller 4 Laser/scanner unit 11 Secondary transfer roller 5 Photosensitive drum 12 Fusing film 2 Chapter 1 Theory of operation ENWW