HP LaserJet P4015 Printer series - Manual (Page 183)

2. Rotate the product so the rear is facing you. If an optional duplexer is installed, lift it and pull it
straight out. Set it aside.
3. Open the rear output bin.
4. Remove the rear output bin. Place your finger near the left-side hinge, and push firmly to the right
until the hinge-pin clears the hole inside the product. Rotate the output bin outward to remove it.
ENWW Jams 171