Ricoh M281 Series Service Manual page 351

6. Remove the PSU [A] from the bracket [B].
4.23.9 HDD (MP 501/601 ONLY)

Before replacing the HDD, copy the address book data to an SD card with SP5-846-051 if
possible.

If the customer uses the DataOverwriteSecurity Unit Type M19, NFC Card Reader Type
M24, or OCR Unit Type M13, these applications must be installed again.
1. Remove the controller board with the BiCU. (page 4-135)
2. Remove the HDD with the bracket [A] from the controller box [B]. (hook×2)
3. Remove the HDD [A] from the HDD bracket.
SM 4-157
Electrical Components
D255/D256/M281/M282