Unresolved issues with my printer

If I have the correctly installed drivers, they are up-to-date, I have enough paper and I have enough ink to print, then why doesn't my printer work properly? I uninstalled the driver and then installed it properly again but it didn't work. I have also done some other basic things like making sure if my 'Use Printer Offline' is not checked and it wasn't. So what could be the problem?
