特殊:Badtitle/NS100:AppleTalk

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Introduction

Some people using AppleTalk printers or running Mac OS 9 still want to use UbuntuHelp:AppleTalk. While the UbuntuHelp:AppleTalk protocol suite is considered deprecated by Apple these days, the large number of legacy devices makes discarding the protocol unfeasible.

Installing UbuntuHelp:AppleTalk Daemons

Installation is easy, just use apt-get to install Netatalk.

sudo apt-get install netatalk

UbuntuHelp:AppleTalk Printing

Getting your Ubuntu installation to print to an UbuntuHelp:AppleTalk printer is relatively easy. With netatalk installed, run nbplkup to find the names of the UbuntuHelp:AppleTalk printers on your network. Make a note of these names. Edit /etc/cups/printers.conf (as root) to add the printer. Here's an example for a printer named "Laser Writer Select 360". The "LW360" you see is the name you'd like to see in Ubuntu. It can be almost anything. The "Laser Writer Select 360" name you see in the URL must be exactly the name that nbplkup gave you for the printer.

# Printer configuration file for CUPS v1.1.23
# Written by cupsd on Mon 25 Apr 2005 02:02:39 PM PDT
<Printer LW360>
Info LW360
Location Local zone
DeviceURI pap://*/Laser Writer Select 360/LaserWriter
State Idle
Accepting Yes
JobSheets none none
QuotaPeriod 0
PageLimit 0
KLimit 0
</Printer>

This example assumes a single, default UbuntuHelp:AppleTalk zone. If you have more than one zone, replace the * in the printer URL with the zone name. The last step is to provide CUPS with a working PAP (the Netatalk printing methodology) backend. You may download one from here. Once you have that file, cd to where that file is stored and:

sudo chmod +x pap

sudo mv pap /usr/lib/cups/backend

Now all you need to do is restart CUPS. You can do this with

sudo /etc/init.d/cupsys restart

This should provide you with UbuntuHelp:AppleTalk printing. Open the Printing admin tool and ensure the printer appears there. Try sending a test page. If all is well, the only remaining step is to ensure Mozilla variant browsers will print. Mozilla uses a newer Ghostscript engine than most Apple printers will support. If an error page stating this comes from the printer when you try to print from Firefox/Mozilla, change the default print string in Firefox/Mozilla's printing prefs to

gs -q -sDEVICE=pswrite -sOutputFile=- -dNOPAUSE -dBATCH -dMozConvertedToLevel2=true - | lpr ${MOZ_PRINTER_NAME:+'-P'}${MOZ_PRINTER_NAME}"

There you go. UbuntuHelp:AppleTalk printing from Ubuntu! Enjoy.

Finding Your Printer URI

You can find the correct URI for your printer by calling the backend without argument :

/usr/lib/cups/backend/pap

UbuntuHelp:AppleTalk Names

An Ubuntu node will show up on the UbuntuHelp:AppleTalk network as 'localhost'. This is due to 'hostname -s' returning localhost instead of using the real name (in /etc/init.d/netatalk). To remedy this, change the appropriate line in /etc/hosts and move the real hostname in front of 'localhost.localdomain', for example:

127.0.0.1  realname localhost.localdomain localhost

There's an open bug report documenting the problem with said order in /etc/hosts that is causing trouble with other programs, too. https://launchpad.net/distros/ubuntu/+source/netcfg/+bug/8980

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