Ricoh M281 Series Service Manual page 391

How to Set the Machine to Download Firmware Later (RESERVE)
Enter the [Firmware Update] menu in the SP mode and update the package firmware.

The [Firmware Update] button will appear even when a machine is connected to
@Remote with a device which does not have an embedded @Remote communicating
function. If an error code is displayed, refer to Error Screens During Updating (page 5-9).
1. Enter the SP mode.
2. Touch [Firmware Update].
3. Touch [Reserve].
4. Touch [Reservation setting].
SM
Package Firmware Update (MP 501/601 Only)
5-21 D255/D256/M281/M282