You must set the password for authority as the printer administrator to do operations as the printer
administrator.
1.
Select Start Applications
2.
Type the following command on the terminal window.
su
(Type the administrator's password.)
lppasswd -g sys -a root
(Type the password for authority as the printer administrator after the Enter password prompt.)
(Retype the password for authority as the printer administrator after the Enter password again
prompt.)
Uninstalling the Printer Driver
1.
Select Start Applications
2.
Type the following command on the terminal window.
su
(Type the administrator's password)
rpm -e Dell-Color-Laser-3110cn
The printer driver is uninstalled.
System
Terminal
System
Terminal
Konsole.
Konsole.