Phaser 6128MFP Service Manual 6-5
Adjustments and Calibrations
Vertical Registration
Section 2 of the Color Registration Correction Chart displays three columns of 
color. In the center of each column is a wavy white column. This column of white 
needs to be centered as much as possible at 0.
To determine correction values for use in Vertical Registration adjustment, choose 
the value from each column that is best centered on the wavy white column.
To enter the correction values:
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 to find Adjust Color Regi. Press the 
OK button.
5. Press the Up Arrow or Down Arrow button to find Enter Number. Press the 
OK button.
6. Press the Up Arrow or Down Arrow button to find Slow Scan. Press the OK 
button.
7. Use the Up Arrow or Down Arrow button to enter the values and the Right 
Arrow button to move from Y to M to C.
8. Repeat step 7 to continue adjusting the color registration. 
9. Press the OK button twice to print the Color Registration Correction Chart with 
the new values. The color registration adjustment is complete when the 
columns of white are centered, as much as possible, on 0.
Resetting the Fuser
Fuser reset is required when a new Fuser is installed. This function sets the life 
counter to “0.”
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 to find Reset Fuser. Press the OK 
button.
5. “Are you sure?” message is displayed. Press the OK button to start the process.
6. Initializing... --> Initialized messages are displayed. The Maintenance Mode 
- Reset Fuser menu is displayed when the process is completed.