Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!ucsd!ucbvax!ucsfcgl!pixar!loren
From: loren@pixar.UUCP (Loren Carpenter)
Newsgroups: comp.sys.next
Subject: Re: printer "not connected"
Message-ID: <6903@pixar.UUCP>
Date: 26 Sep 89 23:40:12 GMT
References: <2187@sjuvax.UUCP>
Reply-To: loren@pixar.UUCP (Loren Carpenter)
Organization: Pixar -- Marin County, California
Lines: 63

In article <2187@sjuvax.UUCP> dcarpent@sjuvax.UUCP (D. Carpenter) writes:
>After setting up my NeXT and connecting the laser printer,
>I tried to print a WriteNow file, only to receive the
>message that there was no printer connected to the Cube.
>I double checked the cables and power cord--everything was
>fine.  But for some reason, the NeXT just won't recognize
>the presence of the printer (a NeXT laser printer, connected
>with NeXT cable).  Is there something obvious I'm forgetting?
>The PrintManager panel lists the NeXT printer, and I have
>"chosen" it on the Print panel, but I still get the message
>"There is no printer connected to your local computer."
>Has anyone else had this problem?
>
>-- 
>===============================================================
>David Carpenter            dcarpent@sjuvax.UUCP                    
>St. Joseph's University    dcarpent%sjuvax.sju.edu@relay.cs.net    
>Philadelphia, PA  19131    ST_JOSEPH@HVRFORD.BITNET                

My printer was "disconnected" too.  It turned out that the problem was a
blown fuse in the printer power supply.  It blows if it sees a spike over
400 volts.  I called NeXT & they explained how I could fix it myself.  I did
& it's fine.  New printers have a better power supply, I'm told.

The fuse is hidden next to the fan, approximately under the red 120/240v
switch.

You have to take off the plastic lid cover (3 unpotted screws on the
underside of the lid), one in the center & 1 each on the sides.  The lid
pops off with a little tugging.  Now you can open the lid all the way &
reach the screws on the top back of the cover.

Then the main cover comes off.  There are 8 screws to remove, 2 on each
side. Of these,  2 are inside (1 might be hidden by a green brush, if you
have one), and 2 are inside the door on the back (hinge side).

To get the 2 on the back, you have to remove the plastic door.  Its
hinges are flexible, they pop out easily.  Don't forget the screw on the
left end holding the plastic door to the roller assembly.

The cover screw near the right hinge of the just-removed door should now be
easy to get.  Next you have to remove the cover protecting a connector on
the left end that's blocking the last cover screw.

The cover comes off straight up.  It wasn't trivial, but I didn't have to
force it anywhere.

There are 4 screws holding in the fan.  Take them out & there's the fuse.

I ran out & bought 4 for $0.75 each.

When reassembling, it's important to make sure the part of the cover that
goes down inside the box, near the rollers, is to the outside of the
alignment assembly.  Look carefully before you take the cover off.  There's
a greasy place with a vertical black plastic tab parallel with the cover.
The tab should be visible after the cover is replaced.

Of course, I refuse to accept any blame if anyone reading this breaks their
printer.  I intentionally left out the rating of the fuse so you have to
read it for yourself.

			Loren Carpenter
			...{ucbvax|sun}!pixar!loren