Ricoh M281 Series Service Manual page 389

4. Touch [Execute Update].
5. Touch [YES].
6. The following display will be displayed.

If the error code E66, which indicates that the download of the firmware has failed, is
displayed, implement this procedure from step 1.

Update will be started automatically after the download is finished.

When the machine is in the update mode, the automatic update is suspended if a
print job is implemented. After the print job is finished, touch [YES] on the display
shown with the following picture to restart updating.
SM
Package Firmware Update (MP 501/601 Only)
5-19 D255/D256/M281/M282