Mac OS X – Page 3

I love my laser printer, a Brother HL-2070N. It is fast, has a network interface and on my Mac it installed itself automagically. Sadly, on my wife’s Mac it installed alright but all print jobs failed. Even tinkering with CUPS did not work. Luckily I found the solution on this Apple support page.

The solution is essentially to install a new version of the open source driver set called Gutenprint. The problem I faced was that the version I tried to install, 5.2.4, did not install fully. I tried the Gutenprint uninstaller that comes in the same dmg file but it failed to work. Downloading the previous version, 5.2.3, and installing it worked just fine. All that was left to do was add the printer as usual (using JetDirect/Socket) and instead of using the default Brother HL-2070N drivers, to use the “Brother HL1270N – CUPS + Gutenprint 5.2.3” driver.

Hope this helps and thanks to the folks from the Apple forums. This was a doozy to solve.

I have an old-ish US Robotics (!) wireless router which while not spectacular like many Linux-ed has one truly nifty trick up its sleeve – a USB print server. It allows you to plug in virtually any non-network-enabled printer and share it among whoever is connected to your wired or wireless network.

Today I tried to set it up to work with my Mac. The router is old enough to show OS X 10.3 (I think) support information on how to connect the Mac to a printer attached to its print server. I am on OS X 10.5 and there was one thing that was pretty darn off:
On OS X 10.5 your choices are more limited than on that older version in that photo. The add printer dialog box offers you three options for network connections: IPP, or Internet Printing Protocol – which is used by my router, LPD – a UNIX network printing protocol, and HP JetDirect, HP’s proprietary printing protocol.
Still, my printer would not work and after a while I found out why. The router’s network print server uses a URL such as
http://192.168.2.1:1631/Printers/My_Printer
The add printer dialog only allows you to add a printer by specifying its IP address and port, as well as its queue name. What it does not allow you to specify is what *protocol* to use when using IPP. The result URLs stemming from the dialog look close to the one I needed, but not right:
ipp://192.168.2.1:1631/Printers/My_Printer
If you notice, the URL is now with an ipp protocol prefix. And that does not work because it is simply the wrong protocol. There is literally no way to make this happen, through the ‘conventional’ means offered by OS X – this add printer dialog. I doubt that this is too big of an issue for too many people, but the fact that it used to work in previous versions of the operating system is a bit sad. So how do you still make it work?

A few years ago, Apple took over one of the biggest undertakings of the open source community – making printing on UNIX and Linux suck less. The CUPS project actually achieved that goal and its print server is built into every OS X machine. CUPS, like on any UNIX machine, can handle virtually any common printer on any protocol – part of the beauty of open source. And on OS X you can access its administrative screens (a bit rough but very usable) by going to the URL
http://localhost:631
Once there, you can follow CUPS’ web-based wizard to add a new printer and lo and behold – it offers a network print protocol option of (drumroll), of Internet Printing Protocol over HTTP. Make sure you have your password for the machine to actually complete the printer but once it is added, it appears in the normal, OS X printing screens.

In short – it appears to be an OS X bug or omission, but luckily not something beyond the realm of accomplishing.