I'm aware of 08-449 to disable size error jamming. That certainly helps, but does an 08 code or a setting exist to disable customer access for changing the paper tray sizes on the control panel? 
eStudio's 352, 455, 720, 855's etc. eBridge machines mainly.

eStudio's 352, 455, 720, 855's etc. eBridge machines mainly.
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