Please help me,

I am an iMac user and have Mac OS X Snow Lepoard sistem, and i have just bought today brand new multufunktional printer/scanner/copier Lexmar X203N and i can print, copy but cannot scan!

I installed drivers from dvd which came in the box, but also updated driver through mac os update, and donwloaded and instaled special scaning driver from but no success. When i opet print&fax, there is printer and there is scanner Lexmar, but when i click open scanner, it says: "no scanner conected". Also, when i opet Preview or Image capture it say "no camera or scanner connected"

What should i do?

Tnx very much in advance for helping me