HP 220240 - Manual (Page 154)

4. Remove the jammed paper from the lower paper path area.
MLO-004534 (Figure 6-16; 15.5 picas)
5. Lower the green paper jam lever to its operating position.
— The side door is spring loaded and automatically closes when the
paper jam lever is lowered into its operating position.
MLO-004533 (Figure 6-17; 16 picas)
6–26 Operator’s Guide