Dell 2155cn/cdn Color Laser Printer - Manual (Page 650)

648 Maintaining Your Printer
5 Click the Start button next to Print Color Regi Chart.
The color registration chart is printed with the new values.
6 Adjust till all straight lines are at the value of 0. Show image of before and
after adjustment will help.
After printing the color registration chart, do not turn off the printer until the
printer motor has stopped running.
NOTE: If 0 is not next to the straightest lines, determine the values and adjust the
printer again.