- 9 -Contents4. Maintenance ...................................................................... 96Replacing Consumables and Maintenance Units ......................................... 96Replacing Toner Cartridges ....................................................................................... 97Replacing the Image Drum ......................................................................................101Replacing the Belt Unit ...........................................................................................104Replacing the Fuser Unit .........................................................................................107Cleaning ............................................................................................ 109Cleaning the Surface of the Printer ...........................................................................109Cleaning Paper Feed Rollers.....................................................................................109Cleaning LED Heads ...............................................................................................111Moving or Transporting Your Printer ....................................................... 113Before Machine Disposal ...................................................................... 1165. Appendix ......................................................................... 117Menu List of the Operator Panel ............................................................ 117Checking the Printer’s Status with the Display Screen .................................................117Menu List of the Operator Panel ...............................................................................118Specifications ..................................................................................... 125Index .................................................................................... 131Oki contact details................................................................. 132