Phaser 6128MFP Service Manual 6-3
Adjustments and Calibrations
Enabling/Disabling Automatic Color Registration
This procedure provides instructions for how to enable or disable the Automatic 
Color Registration function after a new Imaging Unit is installed.
• If the function is set to On, the printer will calibrate the color alignment every 
time it detects a new Imaging Unit.
• If the function is set to Off, calibration will not occur. This allows users to save 
toner.
To enable or disable the Automatic Color Registration:
1. From the Control Panel, press the System button.
2. Press the Up Arrow or Down Arrow button to find Admin Menu. Press the OK 
button.
3. Press the Up Arrow or Down Arrow button to find Maintenance Mode. Press 
the OK button.
4. Press the Up Arrow or Down Arrow button find Adjust Regi. Press the OK 
button.
5. Press the Up Arrow or Down Arrow button to turn automatic color 
registration On or Off.
Adjusting Color Registration
Color Registration can be automatically or manually adjusted.
Determining the Values
From the lines to the right of the Y (yellow), M (magenta), and C (cyan) pattern, 
find the values of the straightest lines.
When “0” is the value nearest the straightest line, you do not need to adjust the 
color registration. When the value is not “0,” refer to “Manual Color Registration 
Adjustment” on page 6-4.
Auto Adjustment
1. From the Control Panel, press the System button.
2. Press the Up Arrow or Down Arrow button to find Admin Menu. Press the OK 
button.
3. Press the Up Arrow or Down Arrow button to find Maintenance Mode. Press 
the OK button.
4. Press the Up Arrow or Down Arrow button find Adjust Color Regi. Press the 
OK button.
5. The Auto Adjust menu is displayed. Press the OK button.
6. Are you sure? message is displayed. Press the OK button to start the Auto 
Adjustment procedure.
7. The printer starts the auto Color Registration process.
8. When the auto Color Registration is completed, the Ready menu is displayed.