Printer issues

[thamusic54]

I bought 2 days ago a new Macbook Pro and connected it to my home network. my network consists of 1 desktop(HP) and 2 laptops(hp and Dell) and now the Mac. I setup the printer and everything seem to be ok, until I try to print. I get a pop up window asking me for the USER NAME and PASSWORD. The printer icon reads "Ready". What user name and password I'm supossed to use? the one for the MAC? I need to fix this problem, because it was a gift for my son and he needs to print his assignments on a daily basis. There is another window that says" authentication required". How this can be fixed? I'm not a computer expert, I get things done but need plain language. Thanks a million for your help on this matter.

 

[halo200]

What happens when you use the Username and Password for your Mac? It could be asking to install something? New drivers perhaps? Do the other computers print fine?

 

[thamusic54]

The printer , according to the Mac is ready, but when I use the Mac's passsword it gives me a message: " authentication required'. I'm going nuts with this.