Canon imageCLASS LBP325dn Service Manual page 104

Deletion (Erase)
When the data is not imported although it was exported, it needs to be deleted to prevent leakage of information.
1. Install the Sublog Board (containing data to be deleted) attached with the Expansion ROM to the Main Controller
PCB.
2. Turn ON the power and select [NVRAM erase], and then delete the information stored in the Sublog Board.
3. The following message is displayed in the case of successful completion.
4. Turn OFF the power and remove the Sublog Board.
List of Error Messages
The following messages are displayed when certain failures occur during operation.
List of Messages
Sublog board not found
NVRAM read error
Sublog R/W error
NVRAM write error
Sublog data not found
Not new board
Different product
Sublog Board is not installed.
Export cannot be executed because the faulty Main Controller PCB is too damaged to
retrieve information.
When the same data cannot be read 3 consecutive times due to Sublog Board error,
the error message is displayed and the operation is stopped.
When information cannot be written to an unused Main Controller PCB for some rea-
sons, the error message is displayed and the operation is stopped.
When the export data is not stored in the Sublog Board (including checksum check
error), import process or erase process cannot be executed.
Import cannot be executed since the Main Controller PCB is not unused or the one to
which no serial number has been written.
Data is attempted to be imported to a model different from the one from which data
was exported.
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3. Technical Explanation (System)
Detail