Given that you seek help you are not being very helpful.
You fail to mention the Operating System (OS) The style or make of the Printer. How you have connected it. What specifically is happening or not happening. What you have tried to solve your problem. If the printer is new or old. If it has ever worked. If you have installed the printer driver in your machine. What, if any, error messages you are getting.
So this could be a long fix...
Peccavi
October 2008