Before replacing the pressure roller, set SP3-701-118 to "1" and switch the power OFF. Then replace the pressure roller and turn the main power ON.
Before replacing the pressure roller bearings, set SP3-701-119 to "1" and turn the main power OFF. Then replace the pressure roller bearings and turn the main power ON.
If you have to turn the power on again before replacing the part, execute the SP again before replacing the part.