Canon LBP-1120 Service Manual page 59

CHAPTER 3
5) Slide the shaft, and detach the cartridge cover.
[2]
[1] Shaft
[2] Cartridge cover
Figure 3-2-8
3 - 4
[1]
6. Pickup Tray
1) Remove the rear cover.
2) Slide up the pickup tray to detach.
[1]
[1] Pickup tray
Figure 3-2-9