Select 
OK
.
 
Print a Quick test page to verify the change.
 
Repeat step 3 through to step 6 until the margins are properly adjusted.
 
Check for proper color alignment. See 
“Adjusting the color alignment” on page 302
.
 
Enter the Diagnostics menu, and then navigate to:
 
Printer diagnostics & adjustments 
> 
Color alignment adjust
 
On the AA Adjustment row, press 
OK 
or touch 
Start
.
 
Note: 
The Color alignment procedure is performed on the cyan, magenta, and yellow colors. 
Enter the Diagnostics menu, and then navigate to:
 
Printer diagnostics & adjustments 
> 
Color alignment adjust 
> 
Cyan 
> 
Quick test
 
Check the alignment markings on the test page generated. Follow the instructions on the test page to correct 
the color misalignment.
 
Enter the Diagnostics menu, and then navigate to:
 
Printer diagnostics & adjustments 
> 
Color alignment adjust 
> 
Yellow 
> 
Quick test
 
Check the alignment markings on the test page generated. Follow the instructions on the test page to correct 
the color misalignment.
 
Enter the Diagnostics menu, and then navigate to:
 
Printer diagnostics & adjustments 
> 
Color alignment adjust 
> 
Magenta 
> 
Quick test
 
Check the alignment markings on the test page generated. Follow the instructions on the test page to correct 
the color misalignment.
 
If color misalignment still occurs, then repeat step 1 through to step 4. 
Some removal procedures require  removing  cable ties.  You must  replace cable  ties during reassembly to 
avoid pinching wires, obstructing the paper path, or restricting mechanical movement.
 
Remove the toner cartridges, imaging unit, and media tray before removing other printer parts. The imaging 
unit should be carefully set on a clean, smooth, and flat surface. It should also be protected from light while 
out of the device.
 
Disconnect all external cables from the printer to prevent possible damage during service. 
Unless otherwise stated, reinstall the parts in reverse order of removal.
 
When reinstalling a part held with several screws, start all screws before the final tightening.