Control system for print media sheet tray arrangement of a printing system

A print media sheet tray control system for use with a printing system of the type in which image representations generated from image data are marked on print media sheets, the image representations being marked on the print media sheets in response to one or more control instructions provided to the printing system by a system user, comprising:

• a configurable print media sheet tray for storing the print media sheets upon which the image representations are to be marked, the configurable print media sheet tray being characterized by a set of print media attributes disposable in a selected state with the print media attribute set being disposed in a first state, said configurable print media sheet tray being configurable in one or both of a first operational mode and a second operational mode;
• a controller for selectively configuring the configurable print media sheet tray into one of the first operational mode and the second operational mode;
• and
• said controller disabling printing system operation when said configurable print media sheet tray is disposed in the first operational mode and the system user attempts to operate the printing system with the selected state of the print media attribute set being altered from the first state to a second state, and said controller enabling printing system operation when said configurable print media sheet tray is disposed in the second operational mode and the system user has altered the selected state of the print media attribute set from the first state to the second state in accordance with a selected alteration procedure.