Epson SL-D3000 Operation Manual page 110

F
Use a vacuum cleaner to clear away any paper particles.
Also, use a vacuum cleaner to clear away any paper particles on the covers removed in the previous step.
G
Replace both covers and tighten the screws by hand to fix them in place.
H
Push the back printing unit all the way in, and then holding the handle in the center push the unit up until it
locks in place.
Checking Items and Checking Times
110