HP LaserJet Pro 300 Color MFP M375 - Manual (Page 267)

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.
ENWW Paper feeds incorrectly or becomes jammed 251