I couldn't install this printer...

when im trying to install... im getting this error

sudo dpkg -i cupswrapperMFC7420-2.0.1-2.i386.deb
Selecting previously deselected package cupswrappermfc7420.
(Reading database ... 126488 files and directories currently installed.)
Unpacking cupswrappermfc7420 (from cupswrapperMFC7420-2.0.1-2.i386.deb) ...
Setting up cupswrappermfc7420 (2.0.1-2) ...
/usr/local/Brother/cupswrapper/cupswrapperMFC7420-2.0.1: 64: cannot create /usr/share/cups/model/MFC7420.ppd: Directory nonexistent
* Restarting Common Unix Printing System: cupsd [ OK ]
* Restarting Common Unix Printing System: cupsd [ OK ]
cp: cannot stat `/usr/share/cups/model/MFC7420.ppd': No such file or directory
dpkg: error processing cupswrappermfc7420 (--install):
subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
cupswrappermfc7420
No such file or directory