6-16 Phaser 7750 Printer Service Manual
Resetting NVRAM 
Resetting NVRAM returns all the image processor’s NVRAM-stored parameters to 
their factory defaults except the print counts and the Adobe firmware serial number. 
You can reset both the PostScript and engine NVRAM using the PostScript Menu or 
the Service Diagnostics Menu. 
PostScript NVRAM Resets
Restore Factory Settings (Color)
You can reset settings for density and color balance to the factory-default values. 
1. From the Main Menu, highlight Printer Setup and press OK. 
2. Highlight Calibration Setup and press OK. 
Note
An alternate access pathway from the Main Menu is Troubleshooting/Print 
Quality Problems.
3. Highlight Calibrate Colors and press OK. 
4. Highlight Restore Factory Settings and press OK. 
5. Highlight Restore Factory Settings NOW and press the OK to reset the color 
settings to factory defaults. 
Restore Previous Settings (Color)
You can return the color settings to the ones that existed before you saved the last 
color balance adjustments. 
1. From the Main Menu, highlight Printer Setup and press OK. 
2. Highlight Calibration Setup and press OK. 
Note
An alternate access pathway from the Main Menu is Troubleshooting/Print 
Quality Problems.
3. Highlight Calibrate Colors and press OK. 
4. Highlight Restore Previous Settings and press OK. 
5. Highlight Restore Previous Settings NOW and press OK to restore the previous 
color settings.