Printer Power Cable HP F2180 Scheme

Hi,

I got an HP F2180 on Ebay and the seller "proudly" forgot to include the power cable...but, luckly for me I have an old "all in one" power transformer that I can use. I just wonder if I can find a power scheme to adapt my plugger for the printer. The plug I should have is this one

16 v, grey connector. What I really don't get is the three connection. Wich one is positive, negative etc? Is there somwhere a cable scheme to semplify things?

Thanks for your help in advance.

Marco Italy