Epson B-310N User Manual page 174

In the output tray:
Gently pull out the jammed paper forward.
Inside the printer:
Open the front printer cover, and then gently pull out the jammed paper forward.
Caution:
c
Be careful not to touch the components indicated on the label inside the printer.
In the rear sheet feeder:
Gently pull out the jammed paper upward.
B-310N/B-510DN User's Guide
Troubleshooting 174