Ricoh M281 Series Service Manual page 374

Firmware Update
5.1.3 PROCEDURE

A SD card is a precision device, so when you handle an SD card, respect the following.

When the power is switched ON, do not insert or remove a card.

During installation, do not switch the power OFF.

Since the card is manufactured to high precision, do not store it in a hot or humid location,
or in direct sunlight.

Do not bend the card, scratch it, or give it a strong shock.

Before downloading firmware on an SD card, check whether write-protection of the SD
card is canceled. If write-protection is enabled, an error code (error code 44, etc.) will be
displayed during download, and the download will fail.

Before updating firmware, remove the network cable from this machine.

If SC818 is generated during software update, switch the power OFF -> ON, and
complete the update which was interrupted.

During software update, network cables, remove interface cables, wireless boards, etc.,
(so that they are not accessed during update).
D255/D256/M281/M282 5-4 SM