6-32  Removal and Replacement 
Main Control Board 
Refer to chapter 5 of this manual for additional details on using the Diagnostics 
software. 
Backup the Printer Values 
1.  With the printer powered and connected to a computer, start Diagnostics and 
log in as an Advanced User. 
2.  From the Printer menu, select Values. 
3.  Click on the Save as button. Name the file with a unique name using the 
printer serial number and current date (for example, F50123-01-31-04.txt). 
4.  Exit from Diagnostics but leave the printer running.