If colour still appears incorrectly after auto-registration, you will need to perform manual registration.
1
Press Menu, 3, 7, 1.
2
Press Mono Start or Colour Start to start printing the colour registration chart.
3
When the machine has finished printing the registration sheet, press 2 (Set Registration) to correct the colour manually.
4
Starting at 1 (Magenta) on the chart, check which coloured bar has the most uniform print density and enter its number into the machine using the and keys.
and 
keys.