[K12OSN] Printer stopped working: "/usr/lib/cups/backend/socket failed"

[Barry Cisna]

Krsnendu,

 A simple troubleshoot would be to from another client or server just do
' telnet <client IP> 9100 '   This would be if you have a HP jet direct
printer configred for this client #.This will tell you if you have
connectivity across the network to the specified printer.
Ive found setting up a usb printer as an HP jet direct /network printer
works pretty reliably.

If you get a response go to ' http localhost  631 ' in your webbrowser,
stop and restart the troubled printer there.