Step Two: Open CUPS Settings in Your Browser The third word, WebInterface=yes, tells the command to enable the web interface. The second word, cupsctol, is the name of the command that can change CUPS’ settings. The first word in this command, sudo, runs the command with administrative rights. At the terminal, run the following command: sudo cupsctl WebInterface=yes To enable it, open the Terminal, which you’ll find in Applications > Utilities. Users can change CUPS settings with a browser-based interface, but this interface is disabled by default.
Printing on macOS is handled by CUPS, an open source system developed by Apple. Step One: Enable the CUPS Browser Interface It’s a bit convoluted, but don’t worry: it’s not as hard as it sounds. Changing this default requires opening the Terminal, and then accessing a browser-based user interface. That way, your printer will print one-sided pages unless you turn the “Two-Sided” option on. The good news is that you can change the default setting. Sure, it’s easy enough to turn off the “Two-Sided” option in the print dialog each time you print, but it’s also easy to forget. Often, we’ll quickly try to print some tickets, see that they’ve come out two-sided, swear under our breath, and then re-print the tickets one-sided. Many of the things we bother to print these days-airline or event tickets, for example-need to be on their own pages. We’ve personally thrown out more than a few documents because of this default. It’s the ecologically friendly thing to do, we suppose-at least, in theory. MacOS makes two-sided printing the default for supported printers. It’s also frustrating when you forget to turn the option off when you don’t need it. Two-sided printing is great in theory, because it uses less paper for multi-page documents.
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