On Tue, Dec 01, 2015 at 05:12:26PM +0100, Stefan Sperling wrote: > On Tue, Dec 01, 2015 at 07:37:05AM -0700, bluesun08 wrote: > > cannot create /dev/ulpt0: Device busy > > > > The printer don't print. What goes wrong here? > > > > Regards Alex > > Some HP LaserJet printers need firmware. See the ulpt(4) man page. > Your model is not listed there. > > Does your printer need firmware?
It's also possible that another program has already opened the ultp0 device.
