I have a printer hp business inkjet 1100. I have inquired everything about the printer. My operating system is windows 7. Now I have even checked the compatibility with windows 7 operating system. It was recommended in the list of the compatible printers given. Now the problem is that I recently upgraded my operating system from windows vista to windows 7. The printer was working very well with the Windows vista. Now when I upgraded the system to windows 7 it is showing some problem. It is giving some error while I am trying to print. So what can be the issue behind it. Suggest me some solutions to tackle with it.