[Klug-general] Any "CUPS" gurus?

[Brian Reay]

  I have an odd problem.

I've a printer set up to be shared via "cups"  (running on a Raspberry 
Pi) with IoS devices.

It will print the first document then "locks". I can print locally, test 
print, etc. But not print from an IoS device. The printer is still being 
shared and is 'visible' to the IoS device.

The only way to 'unlock' it, is to 'edit' the config file in the CUPS 
admin page, save it (which resets the cups server)- even if you've not 
actually edited the file.

I've not seen this on PC Linux before, I've had a system working for 
sometime 'serving' a couple of printers to IoS devices,  but I'd have 
assumed that CUPS would be similar- so it seems to be a CUPS problem on 
the R Pi.

My cups.conf file looks similar to one that works on my PC and published 
ones on the web- there is certainly a 'variety' of different approaches.

I've Googled this to death, I can't find a reference to it locking like 
this.

Brian