HP Color LaserJet Enterprise CP4525 Printer series - Manual (Page 227)

Clear jams in Tray 1
1. If jammed paper is visible in Tray 1, clear the
jam by gently pulling the paper straight out.
Press the OK button to clear the message.
2. If you cannot remove the paper, or if no jammed
paper is visible in Tray 1, close Tray 1 and open
the right door.
ENWW Clear jams 213