Help scripting printer options using lpoptions

Hello there,

I’m trying to script the addition of some printers that will be run as a postflight script on an InstaDMG image. Right now I’m trying to just figure out setting the options. I think I’m doing it correctly, but for some reason the options in System Preferences don’t seem to be sticking. Here’s what I’m trying to do.

I have a printer called Kermit. I type:

lpoptions -p Kermit -l

And here’s the first few lines of what I get (the option I want to change is in the first lines).

HPOption_Tray3/Tray 3: *False Tray3_500
HPOption_Tray4/Tray 4: *False Tray4_500
HPOption_Tray5/Tray 5: *False Tray5_500
HPOption_Disk/Printer Disk: *True False
HPOption_Duplexer/Duplex Unit: *True False

I want to set the option for Tray 3 to have a tray of 500 sheets. So I type the following:

lpoptions -p Kermit -o HPOption_Tray3=Tray3_500

Then, when I ask for the settings again using that first line, I get this:

HPOption_Tray3/Tray 3: False *Tray3_500
HPOption_Tray4/Tray 4: *False Tray4_500
HPOption_Tray5/Tray 5: *False Tray5_500
HPOption_Disk/Printer Disk: *True False
HPOption_Duplexer/Duplex Unit: *True False

The asterisk has moved to “Tray3_500”, suggesting to me that the setting has changed.

However, when I go into the Options tab under that print queue in systems preferences, it still says “Not Installed.” If I set it from the GUI in System Preferences, it does what I would expect it to on the back end – it moves the asterisk from False to Tray3_500.

What am I missing here? Any help would be most appreciated.

Thanks,
Jason