I had a problem with my HP PSC 2110 All-in-one printer/scanner.
When I sended a report to my printer it only gave 1 formfeed, thus resulting in just 1 empty page. The printheads were not moving at all.

After concacting HP for support they solved the problem. I think my problem was caused by the WCGRID-software.

I change following setting in Windows:
Start
Control Panel
Advanced
Performance - settings
Prevention of data-execution (DEP)

In my case the second option was ON. In the list was the WCGRID
I had to switch this to the first possible setting: DEP only for critical programs.

I'm using a Dutch version of Windows, so I'm not sure the above text is the correct English text. But I hope you can find this setting.

After changing this, you have to restart your PC.
Then I was able to print again with the PSC