Dell 5100cn Color Laser Printer User Manual page 213

cleaned.
NOTE: You must find the part to be cleaned yourself.
NOTE: The above graphic shows the parts, one to four, to be cleaned.
NOTE: To prevent the light-sensitive drum being overexposed, do the operation quickly.
5. Align the colored dots printed on the print sample with the corresponding part of the imaging drum.
- 1 indicates the lateral position of the colored dots.
- 2 indicates the color of the colored dots.
NOTE: The graphic shows an example with magenta colored dots.
6. Determine the position where colored dots were printed. Then turn the transfer roller (black-colored roller) by
rolling it with your finger on its left side to find the dirt.