I am running Peppermint 3 on a Dell D505 laptop and have an HP Photosmart C7200 series wireless printer (and a broken Epson).
When attempting to print this morning, it failed.
Opening the HP GUI showed that the device was not connected.
Switched the printer off and on.
Still shown as not connected
Installed HPLIP on a newly installed Ubuntu 14 desktop which found the printer immediately (wirelessly) and did a test print. So the printer is OK.
Back on the laptop:
In the HP GUI, removed the printer/fax and attempted to find it again (wirelessly). Failed to find the printer.
Uninstalled HPLIP via the terminal
HPLIP still shown in Package Manager so removed from there, too.
(Although the printer is no longer shown in Settings/Printers it does still appear in the printer list if I attempt to print a document.
Reinstalled HPLIP via the terminal (and added the GUI via Package Manager). Then…
Using the GUI Add Printer:
Using “Setup Device” still fails to find the printer
Using CUPS Web Interface, it found and installed the printer (but not the fax utility)
But HPLIP GUI still does not list it (should CUPS have added it?)
Tried to print a test page from CUPS: Success!
Used CUPS to set it as default printer: OK. (and it modified /etc/cups/printers.conf)
Tried to print a document from LibreOffice: Failed
“lpq” shows nothing in the queue.
Tried to print a test page via Settings/Printers/: Success!!
Tried to print a text file via “lpr <textfile.txt>”: Success!
Tried to print from Thunderbird: Success!
So I can print wirelessly using CUPS, Settings/Printers, Thunderbird and the terminal, but not from LibreOffice.
At wits end.
It may be that I haven’t uninstalled/reinstalled HPLIP sufficiently thoroughly. Your advice would be welcome.