@JosDuchIt
Right, yes, there's some other stuff you have to do to get ipq (and probably ipr) to work. I'm not sure how useful it will be in that case, but basically:
copy ipp-template ENVARC:.ipp-template
edit ENVARC:.ipp-template
Set printer-uri to your printer. I had to set mine to the actual printer, ie.
http://demeter:631/printers/hp-LaserJet-1015, so you probably need
http://192.168.1.3:631/ippUncomment the requesting-user-name line and change it if you like.
It doesn't query the printer unless the printer-uri line is correct, no matter what you specify on the command line, which is why I think it's not particulary helpful.
You could give it a try anyway, it should spew out a load of text if it is working.
You're not using a wireless network by any chance?