Dell 5130cdn Color Laser Printer - Manuel (Page 328)

11. Insert the cleaning rod fully into one of the four holes until it clicks into the interior of the printer as illustrated
below, and then pull it out.
12. Repeat Step 11 also on the other three holes. One time insertion is enough for each hole.
13. Return the cleaning rod to its original location.
14. Close the front cover.
NOTE: Whenever you replace the drum cartridges, also clean inside the printer to maintain high image quality. See