0 Phaser 7750 - How to enter the Service Diagnostics!

1. From the Main Menu, highlight Troubleshooting and press OK.
2. Highlight Service Tools and press OK.
3. Press the Up and Down buttons simultaneously to enter the Hidden Service menu.
4. Highlight Run Service Diagnostics and press OK to enter Service Diagnostics.

If Menu is Blocked :

1. Turn the printer power OFF.
2. Hold down the Back and Information buttons simultaneously and turn the printer back ON.
3. Continue to hold the buttons until the following message is displayed on the front panel:
Service Diagnostics V#.##, Initializing..., and then release the buttons.