Dell C5765DN Dell Color Laser Multifunction Printer User's Guide - Page 518

22 Problem Solving Symptom Black or colored lines are printed. Cause The drum cartridge has deteriorated or is damaged. The machine interior (laser scanners) is dirty. The constant velocity transport glass on the document feeder is dirty. Remedy Replace the drum cartridge with a new one. Refer to "Replacing Drum Cartridges C, M, Y, or K" (P.223). Clean the machine interior. Refer to "Cleaning the Interior (Laser Scanners)" (P.240). Clean the constant velocity transport glass. Refer to "Cleaning the White Chute and Constant Velocity Transport Glass" (P.246). Dirt appears at equal intervals. The paper path is dirty. The drum cartridge has deteriorated or is damaged. Print a few pages to remove the dirt. Replace the drum cartridge with a new one. Refer to "Replacing Drum Cartridges C, M, Y, or K" (P.223). Paper feed direction White dots appear in black filled areas. The paper is unsuitable. The drum cartridge has deteriorated or is damaged. Load suitable paper. Refer to "Loading Paper" (P.207). Replace the drum cartridge with a new one. Refer to "Replacing Drum Cartridges C, M, Y, or K" (P.223). Printed toner smudges when rubbed with your finger. Toner is not fused. The paper is soiled with toner. The paper is damp. The paper is unsuitable. Replace the paper with new one. Refer to "Loading Paper" (P.207). Load suitable paper. Refer to "Loading Paper" (P.207). 518