Oki MB472w - Board MRM

45762101TH Rev.1
4-6
Oki Data CONFIDENTIAL
4.REPLACEMENT OF PARTS
4.2.3 Board MRM
(1) Remove the Cover Side (R). (Refer to 4.2.2)
(2) Remove four Screws (Silver)
①
, and remove the Plate Shield (CU)
②
.
④×4
(3) Disconnect all cables and remove four Screws (Silver)
④
to detach the
Board MRM
③
.
①
①
②
①
①
②
②
View A
View AView B
View B
Note!
If replaced new board, update Firmware according to Chapter 9.3.
It is necessary to take the synchronization of the firmware version of SU
board and CU board.
For MB451, MB451w:
If Error 049 is displayed on LCD after replacing to the new Board MRM, it is
necessary to update the firmware according to Chapter 6.3.5.