Printers Fixed, Maybe

It was the last batch of CUPS updates that killed my Eltron printers on the network.  I had to re-add them, and the printer on the production machine didn’t want to cooperate.  I gave up on using http://localhost:631 to add it and used the command line

lpadmin -p Eltron1 -v http://192.168.1.15:631/printers/Eltron1

and then throw in a

cupsenable Eltron1
cupsaccept Eltron1

For some reason using the web interface kept pointing the URI to file:///dev/null. Which can be correct, depending on how you install the printer. It does make it look broken, though, when you check the status.
Also a big help: lpstat -t that tells you everything you need to know about your lp status.