Epson AcuLaser CX37DN Series User Manual page 211

4. Pull out Tray 3, and then remove all paper from the tray.
5. Fan the paper you removed and then align it well.
6. Load the paper face up in Tray 3.
Note:
❏ Make sure that the paper is flat.
❏ Do not load paper above the d mark.
❏ Slide the media guides against the edges of the paper.
Epson AcuLaser CX37 Series Printer/Copier/Scanner User's Guide
Troubleshooting 211