HP 4 plus C2037A, C2021A, 5n C3952A, 5 C3916A, 5m C3917A, 4 C2001A manual This a 2 panel pull-out

This a 2 panel pull-out.

Figure 5-22 MP (Tray 1) Timing Diagram—HP LaserJet 4 Plus/4M Plus/5/5M/5N

5-36 Functional Overview