can not install canon mx870 printer driver

[sisqonrw]

hi i can not install the canon mx870 printer driver

i have downloaded the driver here

http://is.gd/aN6SWM

i get this error message:

~/Downloads/cnijfilter-mx870series-3.30-1-i386-deb$ ./install.sh
==================================================

Canon Inkjet Printer Driver Ver.3.30-1 for Linux
Copyright CANON INC. 2001-2010
All Rights Reserved.

==================================================
An error occurred. The package management system cannot be identified.

What is wrong? how can i install it. it had worked on 11.04.

[sisqonrw]

you have to uninstall rpm than it works.