Canon imageCLASS LBP325dn Service Manual page 102

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3. Install the above Sublog Board to the machine.
CAUTION:
Connect a PCB (Expansion ROM for servicing and Sublog Board) which has the setting information backed up, to an unused
Main Controller PCB.
Be sure to connect a PCB in which the setting information is backed up (Expansion ROM for servicing and Sublog Board)
when connecting to an unused Main Controller PCB.
Backup data cannot be imported to a once-used PCB. Therefore, if a PCB from which the setting information is not exported
(backed up) is connected to an unused Main Controller PCB, backup data cannot be imported.
Backup Procedure (Export)
1. The menu is displayed when turning ON the power while the Sublog Board attached with the Expansion ROM for
servicing is installed.
2. Press the down arrow key on the Control Panel.
This operation causes the information stored in the machine to
be exported to the Sublog Board.
3. The following message is displayed when backup is completed successfully.
Expansion ROM
Sublog Board
Main Controller PCB
92
3. Technical Explanation (System)

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