HP 220240 - Manual (Page 147)

6.7.2 Paper Jam Areas 2, 3, 4, and 6
Use the following procedure to clear paper jams from the paper feed,
transfer, and fixing assembly areas.
1. Open the top cover by pressing the release button forward and then
down.
— The top cover releases and opens slightly.
MLO-005118 (Figure 6-8; 15.5 picas)
Troubleshooting 6–19