RPM doesn't use the selected printer properties

When I change my printer properties in RPM, they aren't used. I've tried to select a different tray, and also a different orientation, but neither seems to work properly. Am I doing something wrong?

If you are using a Text Print action in RPM Remote Print Manager®, these settings should all work just fine, as long as you have the correct driver loaded for the printer.

If you are using a Raw Print action, these settings make no difference. RPM's raw print actions send the data straight through to the printer without changing the file at all, including adding appropriate printer codes. This is the desired behavior and there is no way to make these settings work with this action type. If you need to print directly, you will need to configure your sending (LPR) system to format the data accordingly before RPM ever gets the data.