MacBook Pro Not On Speaking Terms With Printers

[playethic]

I have a 15" Macbook Pro running Mountain Lion. It has been communicating with my printers, but now says it cannot communicate with either. I cannot think of anything that I have changed. I know that it's my MacBook Pro rather than the printers because a friend has been able to print to my printers from their computer with no problems.
I have a Lexmark Platinum Pro 905, and an HP Photosmart 7200 series.

Any ideas? It's most frustrating having to continually put files onto USB sticks and go out to pay for computer time and printing costs at a local internet cafe...

Lisa

 

[miles01110]

Download & install the drivers required for ML.

 

[clyde2801]

By any chance, are any of the printers HP?

I've had the worst luck with HP printers refusing to update their drivers for new versions of Mac OS. They'll update for a version or two then refuse to update further; the unsupported OS will either lose features such as scanning or faxing, or not work altogether.

It hasn't been a problem for me using Lexmark, Canon or Epson, only HP. Not so bad on windows, but MacOS with it's yearly updates is rather a PITA in that regard.