Ricoh M281 Series Service Manual page 353

4.24 FANS
4.24.1 PSU FAN
1. Remove the right lower cover. (MP 501/601: page 4-22, SP 5300/5310: page 4-54)
2. Disconnect the connector of the PSU fan [A] from the right side of the machine.
3. Release the hook [A] by lifting the fan bracket [B]. (hook×1)
4. Remove the PSU fan with the bracket [A]. (hook×2)
SM 4-159
Fans
D255/D256/M281/M282