NeXT Laser Printer not showing connected

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Title: NeXT Laser Printer not showing connected
Post by: NeXTsociety on March 07, 2010, 12:20:49 PM
Any advice on why a NeXT Laser Printer shows as not connected would be nice. This is a new to me printer. Toner in, lid shuts, on 115v, paper tray in, plugged into power, plugged into Cube. PrintManager, when I go to edit the Local_printer to give it a new name says no printer connected.

So, is there some things I can do to see if the printer is actually powering up? Some magic fuse that may go bad that I should replace?

Any tips please.

Tj[/u]
Title: Re: NeXT Laser Printer not showing connected
Post by: NeXTsociety on March 08, 2010, 07:30:18 PM
Anyone... anyone.  hehehe

Looking through my manuals that came with the Cube it shows a Printer utility that does not appear on my Cube.  Must be based on old NS 1.x or 2.x that came with the cube.  It was a utility that checked the Power On the printer.  That would maybe come in handy although since the printer is not seen by the Cube, not sure it would help.

So, any NeXT Printer Experts here?  I have a super clean printer that I could not fathom throwing away in case this is a actual silly fix.  I know these printers had paper feed issues but read nothing about printers that are not seen by the Cube.

Is there a fuse that goes bad maybe?  Is it just this OS I have on the cube has an issue and a clean install might help with printer attached?

tj

Quote from: "NeXTsociety"Any advice on why a NeXT Laser Printer shows as not connected would be nice. This is a new to me printer. Toner in, lid shuts, on 115v, paper tray in, plugged into power, plugged into Cube. PrintManager, when I go to edit the Local_printer to give it a new name says no printer connected.

So, is there some things I can do to see if the printer is actually powering up? Some magic fuse that may go bad that I should replace?

Any tips please.

Tj[/u]
Title: Re: NeXT Laser Printer not showing connected
Post by: cubist on March 08, 2010, 09:33:39 PM
Quote from: "NeXTsociety"Anyone... anyone.  hehehe

Check the console/monitor output during boot or the boot log afterwards.  The printer driver has a chat with the port during boot and should say something.  On the hardware side, check continuity through the cable with a DMM.  Those should point in one direction or the other.

As for power, the /etc/nppower program will flip the printer on and off once the cube can talk to the printer.
Title: Re: NeXT Laser Printer not showing connected
Post by: NeXTsociety on March 08, 2010, 10:20:07 PM
Quote from: "cubist"
Quote from: "NeXTsociety"Anyone... anyone.  hehehe

Check the console/monitor output during boot or the boot log afterwards.  The printer driver has a chat with the port during boot and should say something.  On the hardware side, check continuity through the cable with a DMM.  Those should point in one direction or the other.

As for power, the /etc/nppower program will flip the printer on and off once the cube can talk to the printer.

Now this sounds like great info but bear with me, I am not familiar with how to do these things.  I am quite handy but need some guidance here.

#1
How do I check the console monitor during boot.  When my NeXTcube boots, I only get the normal NeXTSTEP screen and then the login screen.  Will something have recorded what happened during boot that I can open, print, and post here for more comments on what it did?

#2
What is a DMM?  Are you saying to remove my cable from both ends and confirm the cable pin 1 to cable pin 1 has continuity with a small hand meter?  Am I checking pin to pin 1, 2 to 2, etc..  or did you mean to do something else.

#3
I will see if the /etc/nppower is even on my NeXTcube.

Thanks

tj
Title: Re: NeXT Laser Printer not showing connected
Post by: cubist on March 08, 2010, 10:37:28 PM
Quote from: "NeXTsociety"
#1
How do I check the console monitor during boot.  When my NeXTcube boots, I only get the normal NeXTSTEP screen and then the login screen.  Will something have recorded what happened during boot that I can open, print, and post here for more comments on what it did?

A good part of the boot will be captured in a log file.  I don't have my cube booted at the moment.  But the logs should be /usr/adm, /private/adm, /private/log, something like that.  If that doesn't point in any direction, then you may need to get the console/monitor up.  This is the firmware that runs on power up.  Once there, you can do some hardware tests and watch the entire boot process as well.  There are notes in here about doing that.
Quote
#2
What is a DMM?  Are you saying to remove my cable from both ends and confirm the cable pin 1 to cable pin 1 has continuity with a small hand meter?  Am I checking pin to pin 1, 2 to 2, etc..  or did you mean to do something else.
Digital Multi-Meter.  Yep, check continuity, pin 1-1, etc.
Quote
#3
I will see if the /etc/nppower is even on my NeXTcube.
It will really only be useful once you *can* talk to the printer, at least at the control level.  But you'll know it's working when turning the printer on at the command line dims your room lights from the current surge.

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