A method implemented in a multi-user data processing system including an image forming apparatus for processing a print job is disclosed, which includes: storing a printer language access policy in the image forming apparatus, wherein the plurality of printer language policy settings determines which printer language commands can be executed by the plurality of users on a user-by-user basis; and when a user requests to execute a printer language command for the image forming apparatus, determining whether the user is authorized to execute the printer language command based on the printer language policy settings for the user, wherein an execution of the printer language command affects at least one of a printer language feature of the image forming apparatus and a printer language setting of a printer language feature of the image forming apparatus to be effective to other users.