HP LaserJet Pro 400 color Printer M451 series - Manual (Page 172)

5. Make sure the paper guides in the tray are adjusted correctly for the size of paper. Adjust the
guides so they are touching the paper stack without bending it.
6. Make sure that the tray is fully inserted in the product.
7. If you are printing on heavy, embossed, or perforated paper, use the manual feed feature and
feed sheets one at a time.
154 Chapter 11 Solve problems ENWW