Bug#953104: hplip: After upgrade to version 3.20.2 of hplip, nothing can be printed

[Brian <ad44@cityscape.co.uk>]

On Thu, Mar 05, 2020 at 04:02:57PM +0000, Brian Potkin wrote:
> 
> The conclusion at the present time is that the hp backend is failing.
> I thought at first it might be #932246
> 
>   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=932246
> 
> but there is no sign it is involved.

There is now a possibility that I am able to reproduce the behaviour
Brad experiences.

Brad, we did not use all the tools we have at our disposal. Read

  https://wiki.debian.org/CUPSDebugging#The_CUPS_Error_Log

and get an idea of where we are going. Now

* Do 'cupsctl --debug-logging' (as root).
* Then '>/var/log/cups/error_log' (as root).
* Print with 'lp -d Officejet_6700 /etc/nsswitch.conf'.
* Compress /var/log/cups/error_log with gzip and send it here as an
  attachment.

You can also search for "failed" in the error_log.

Cheers,

Brian.