The 'Replace Belt CG' message on the 8008 indicates the OPC Belt (Green Reflective Belt which is located in the top of the printer) has reached the end of its life and needs to be replaced to ensure the print quality is maintained.
If you are happy with the print quality you can clear the message via the control pannel on the printer, you will however need to remember you have cleared the error in the future when print quality is reduced you will then need to replace the OPC Belt.

The ‘Replace Belt CG’ message can be cleared in the following way;


With the printer OFFLINE hold down the MENU button for 2-3 seconds until the display changes UTILITY MENU and then release the MENU button
Press the MENU button once more
The display will read "Utility Menu Clear Belt CG", press the MENU button once more
The display will change to "Clear Belt CG Not Execute" by pressing MEDIA/> key again the display will change to "Execute"
Press the MENU/ENTER key again after 10 seconds the display will change to "Completed Clear belt CG"
Press the UP ARROW button twice to exit the Utility Menu
Press the ONLINE button to return the printer to the ONLINE state

The ‘Replace Belt CG’ message will now be cleared.