Username and Password

[Angie Toothaker]

Hello,

I am a novice computer user but am trying to change the default printer settings for my printer. I go to http://127.0.0.1:631/printers/ and get into the screen but then it makes me enter my username and password. Where do I get this username and password? I need to change my printer to Raster Mode and this is the only way that I can do it. Can someone please help me? Thank you!