Install problem Brother 2040 printer

[miner]

I am following instructions from the Brother website for the 2040 
printer and I believe it is installed
as G Debi Package Installer detects the installation recognizing the 
Brother 2040 LPR driver. However the computer does not detect the printer.

Once installed the instructions for USB users state;

*Ensure that the :lp line reads as follows; :lp=usb/lp0*

Where do I find this :lp line?

At the end I am supposed to enter; */etc/init.dlpd restart* but the 
command is not recognized.

Any help greatly appreciated.