First you have to make sure you are printing using the driver
made for the Ricoh printer. When adding a printer do not use AirPrint
but the PostScript driver (the one ending with PS) at the
Use: drop down menu.
If you do not have any PostScript driver, you have to download it
from Ricoh. The Ricoh homepage is a bit hard to link to, but go to
for example https://www.ricoh-usa.com/downloads/
enter the model number of the printer and download drivers.
Then, when printing, enter Show details.
In the drop down menu (currently showing Safari since I was printing from Safari) pick Job Log.
In the Job Log settings, change Job Type: to Locked Print.
Enter your settings - your username and a unique password.
Print using these preset settings.
Go to printer and enter the password to get the printer to print.
This entry locked.print.mac was last modified 2017-08-16