Dell 3110cn Color Laser Printer - Manual (Page 219)

Confirm that there are no scraps of paper remaining inside the printer, and then close the front cover. 6.
Removing Print Jams From the Optional Duplexer
NOTICE: Make sure nothing touches or scratches the surface (black-colored film) of the belt unit.
Scratches, dirt, or oil from your hands on the film of the belt unit may reduce print quality.
NOTICE: To protect the drums of the print cartridges against bright light, close the front cover within
5 minutes. If the front cover remains open for more than 5 minutes, print quality may deteriorate.
NOTE: To resolve the error displayed on the operator panel, you must clear all print media from the
print media path.
Push the side button and open the front cover. 1.