To remove the paper jam, turn off the printer then put it on its side. Remove the document cover and follow the instructions below:
1 - Put the printer on its side
2 - Pull the jammed paper slowly while keeping the printer steady.
3 - Put back the components as shown.
On the other side, you might need to calibrate the printer before you can print again your emails. There is a possibility that the email doesn't fit properly so make sure to change the printing format from printer's preferences.