HP LaserJet P1006

I have problems with my printer! I tried every possible solution, but it's still not working!
I find hard to believe that I have one of the best O.S. but I can't use my printer!!!!

In two days I have to present an important work to my professor and in this condition I have to use my nice's macbook to print my document!
I'm really upset with Apple and HP!

Can someone help me?
I tried to follow some indications that I saw in other threads, but nothing is working!

Thanks in advance!

Ps: sorry for my "not perfect" English!