Ricoh A250 Service Manual page 640

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NOTE: 1) Before replacing the NIB, back up the NIB NVRAM to the controller

using the "NIB read/write" service tool. Then, replace the NIB. Then

restore the NIB NVRAM using the "NIB read/write" service tool. Refer to

section 4.4.3 for details.

2) If the NIB does not start up after a firmware update using the NBTFTP

utility, try downloading the firmware from an IC card.

1. Back up the NIB NVRAM to the controller using [Service Tool] – [NIB

read/write].

2. Remove the covers.

3. Remove the controller (3 screws).

4. Replace the NIB (2 screws).

5. Put back the controller.

6. Turn on the machine and restore the NIB NVRAM using the [Service Tool] –

[NIB read/write].

7. Turn off the machine and turn it back on. Then, print the Printer Configuration

Page ([User Tools] – [Printer] – [List Print]).

Ensure that all the controller settings are restored.

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