Samsung SL-M2875FD-XAA - Manual (Page 145)

145 1. Software Installation
Reinstallation for Linux
If the printer driver does not work properly, uninstall the driver and reinstall it.
1 Open Terminal program.
2 Move to uld folder extracted from Unified Linux Driver package.
3 Execute "./uninstall.sh" command (If you're not logged in as root,
execute the command with "sudo" as "sudo ./uninstall.sh")
4 Proceed with the uninstallation.