#Printer

Okay. This one took a long time to solve.

At some random point after upgrading from Snow Leopard to Mountain Lion was unable to add new printers.

As I don’t really add new printers on a daily base, I have no idea when it actually happened or what might have caused it.

• If I deleted an existing printer, and tried to readd it, it would throw errors at me.
• Plugging in (known) printers would pop up the dialog "click here to install/download/search for the printer driver", even though it was installed. Clicking install would give me an error no drivers could be found.
• Dymo Labelwriter shizzle stopped working.
• The driver list (system pref > printers > add > select printer software) would be empty, while on another Mac it was fully populated.
• Mac would never find the printer driver for the printer, requiring manual intervention (but, yea, as the list was empty, there wasn't much to select).

This is, as you might guess, quite annoying. Unable to print any new labels or print out any papers (and invoices ! -.-) ) I had to use another Mac just for printing.