[comp.sys.next] Problem: ?Could not open /dev/np0!

got@tardis (Gordon Tillman) (04/21/91)

Hello all!

I was happily computing away on my '030 NeXT and went
to print something.  I got an error message saying that
I did not have a printer attached.

After making a quick check of all cables and retrying
to no avail, I tried using the command

    /usr/etc/nppower on

The command returns: ?Could not open /dev/np0!

The man page on nppower says:

    `?Could not open /dev/np0!' will be printed if no printer is
    connect to the printer port.

Well, since then, I have ohm'd out the printer cable.  It's ok.  I checked
to make sure I had AC power to the printer.  That's fine too.

I even pulled the metal plate off the bottom of the printer and looked 
around.  I removed the little board that the interface cable plugs in
to and saw a fuse on it.  I checked the fuse -- it's good.

I also tried booting off another disk to make sure that I didn't have
a software problem.

Does anyone have any ideas of what else I might try?



Thanks a million for any advice!


Gordon Tillman
Shell Oil
got@shell.com


-- 
Gordon Tillman                                        got@shell.com
Operational Programming - Geophysical                 Shell Oil Co.