macOS enable "Duplex Printing Unit" in command prompt?

[trey5498]

by using

lpadmin -p print-queue -o Duplex=DuplexNoTumble

I can set a printer to default as duplex. However, how to I enable the "Duplex Printing Unit" via the terminal?

 

[bantch01]

Were you able to find the answer? I'm trying to do the same thing.

 

[kryten2]

http://hints.macworld.com/article.php?story=20120313110411984
http://www.dice.inf.ed.ac.uk/units/user_support/docs/cups-printing.html

lpoptions -p printername -l
Prints PPD options, "Default" is filtered from option name (similar to looking at the raw PPD)
It uses a colon when reporting key value pairs; replace that with an equals sign when specifying an option
The option name stops at the first slash
Example: The duplex option for HP printers will output like this "HPOption_Duplexer/Duplex Unit: *True False"
When specified as a "-o" option it would be "HPOption_Duplexer=True"

 

[stare.in.the.ai]

I know it's a bit late, but Google brought me here.

-o APOptionalDuplexer=True

That did it for me.

I found that out with:

lpoptions -p printername -l

I'm using

/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/PrintCore.framework/Versions/A/Resources/Generic.ppd

which is Generic PostScript Printer by the way.

/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/PrintCore.framework/Versions/A/Resources/GenericPrinter.ppd

is Generic PCL Printer or just Generic Printer.