C1765nf Color MFP sleep problems

I currently have this printer setup like any other printer on the schools network through a print server and deployed using active directory and group policy.  The problem comes from new printers being "energy conscious".  I have only found this to be a pain in <ADMIN NOTE: Substitute character removed as per TOU>.  As it sits idle for an hour it will go into sleep mode.  When a user submits a print job, the printer should wake up and print, however, this wont happen.  It will show the printer offline and the job will store till someone pushes a button on the printer.  This should not happen.  I have messed with the setting on the printer to the max and cannot turn off sleep.  Or find a toggle that will definitely make sure that network will wake it up.  Anyone have a solution to this model or similar model?