Dell 3110cn Color Laser Printer - Manual (Page 231)

Printing on both ends of
the transparencies is
faded. · This occurs when the printer is operating in a location where relative humidity
reaches 85% or more. Adjust the humidity or relocate the printer to an
appropriate environment.
Color registration is out
of alignment. · Print the color registration chart and adjust the color registration from the
operator panel by using the chart. See " Color Reg Adj " for more details.
Colored dots are printed
at regular intervals. · Replace the print cartridge that prints the dots with a new one.