On Friday, 30 October 2020 11:20:05 GMT Peter Humphrey wrote:
> [Some snipping]
> 
> On Thursday, 29 October 2020 19:25:47 GMT Michael wrote:

> > Have a look here in case there is some step you've missed out:
> > 
> > https://wiki.gentoo.org/wiki/Printing
> 
> Yes, I've done that.
> 
> > Cups usually captures informative logs and you can set increased verbosity
> > for more detail.  What do these logs report?
> 
> Ah! I think it's a pam problem: permission denied. I am in the lp group
> though. Do I also need to be in the lpadmin group? I never have been before.

Have another look at the above document and in particular pay attention to:

https://wiki.gentoo.org/wiki/Printing#Configuration

You need to add your user to the lpadmin group.