Lexmark XC9225
This process erases all contents in the hard disk. If necessary, back up important data from the printer before starting the encryption.
From the home screen, touch Settings > Security > Disk Encryption > Start encryption.
Follow the instructions on the display.
Notes:
Delete residual confidential information left by scan, print, copy, and fax jobs.
Expand the memory capacity of your printer and enable it to print complex jobs and collate large print jobs.