Dell C1760NW Color Laser Printer - Manual (Page 195)

Maintaining Your Printer 193
5 Pull the cleaning rod out.
6 Insert the cleaning rod fully into the hole beside the arrow on the printer until its tip reaches the interior of the
printer as illustrated below, and then pull it out.
7 Repeat the same procedure for the other three holes.
8 Insert the cleaning rod back to its original location.