My problem is so similar to this that I thought I could express it as a reply here rather than as a new topic. I too am trying to print to a winbox that has an hp deskjet 3420 shared printer. My knoppix box sees that printer on the lan after doing a scan and I select the driver and do a config. I print a test page. Nothing happens at the printer. At the winbox I can see the print job queued at the printer, but it just doesn't print.

Now, if I boot the winbox having the printer as Knoppix and install the printer as local on the usb, everything prints just fine.

Any suggestions all?