Will not scan

I really love technology when it's working.  However, when something goes wrong, it really puts a damper on my love for it.  Take my all in one printer,  {please?!} it has been scanning, printing and doing everything I ask of it since we purchased it 2 years ago.  Until today. What do you mean, can't scan because it doesn't have usb connection? Umm, the cord is right there, I see it connected to the printer and the computer, as it has been for said 2 years. Tried my own troubleshooting of unplugging it, reattaching the cords, restarting the computer and printer; still no luck. Went to online troubleshooting.  Followed all 4 steps as outlined. Still no luck. {getting ready to throw printer out window}   Before exiting page, saw a little tiny box, with very small print on the bottom of page saying if you installed the new mac OS the scan driver isn't supported anymore and you have to use the OS system its self to work around it.  Forgive me.... but... SHOULDN'T THAT BE THE FIRST THING IT SHOWS YOU?! So after an hour of messing with it, I finally have it working.  On to uploading my picture for today... camera won't turn on, what's the deal, I just used it.  Dead battery.  GRR!