How to STOP default two sided printing

Have the exact same issue too and it was driving me crazy. Just tried PAHU's answer and I am hoping that will solve it. It is disappointing that there isn't an easy fix with Apple's OS. Most of the time everything is so simple to use and well set-up, but they fail in this case.

@Seattle Pylons,

The same thing happened here, and like you I first blamed Apple OSX 10.8 since it happened after upgrading the system to that (not to mention their 10.8.5 update breaking certain bluetooth USB adapters and having to edit the framework file to add some vendor ID to match that of a supported bluetooth device..), but since we also have other printers, and those printers didnt get affected, it does turn out that the PPD file has a default description of Duplex to be True (on) for this specific printer and thus it is a driver issue, not a OSX issue because CUPS reads the information from the PPD file description and sets default options from there. PAHU's solution will work for you, but in the case of doing it to multiple computers like for me, you need to fix it at the driver level first and then distribute this driver, unless you have a server running CUPS and sharing the printers from there to all computers, which is the right thing to do.

PAHU's suggestion worked perfectly. Thanks so much!

@PAHU,

Thank you for that helpful instruction. I was able to turn off default duplex printing. However, I would still like to be able to select duplex printing from the print dialog, but the "two-sided" option is grayed out. Any ideas?

Some printers don't use the Layout menu as they have their own vendor provided menu. So have a look at the other menus available; you may see something like Finishing or Duplex that will let you switch from duplex to simplex.

Thanks again! By selecting Finishing instead of Layout, I got all the options I wanted.

PAHUs "fix" worked perfectly. My-freaking-man, that had been driving me nuts since upgrading to Mav.

@PAHU's fix worked for me. Two Canon Image Runner 5200 color printers connected over Ethernet, now printing single sided by default after following the instructions from @PAHU. Super simple, nice fix.

Thanks again!

Pahu = winner!

Thanks man.

I have figured this out for ppt on mac. There are a few options...

Option 1

See the print details screen below. Select the drop down of "copies & pages" and choose layout

In the layout details screen, see the option for "two sided printing" and select off

Then go back up to the drop down that says Layout and go back and choose "copies and pages"

Then print from that screen.

It should work.

You can also check that the default settings have it turned off in the Layout tab

Option 2: Reset the printers by deleting them all and re-adding

This worked perfectly thank you so much! i could not find out what the problem was and everyone else's answer was far more complex than what the real solution is. All you need to do is go back to the default settings and everything is back to normal (:

Thank you, Linc, for that clear and easy to follow advice.

THANK YOU @PAHU!!! This was driving me nuts!

This was a lengthy resolution, but it worked! Thank you so much for taking the time to write this out!

Option 2 worked great! Quick and easy way is to delete printer and re-add. Completely resolved the issue for me! Thanks!