You can set the printer to require a user code when someone tries to use certain printer functions.
When print jobs are restricted, you can only authenticate through the PCL printer driver. Printing from the PostScript 3 printer driver will not be possible.
Using Web Image Monitor, enable user restriction for all or some of the functions listed below, and then register users who can use those functions.
PictBridge printing
Printing (both color and black-and-white)
Color printing (black-and-white printing is still allowed)
For each user, you can specify which functions are available upon authentication. A maximum of 30 users can be registered.
For details about configuring the user restriction settings, see Restricting Printer Functions According to User.