Canon imageCLASS LBP6780dn - Maintenance; When Replacing the PCB

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Technology > MEAP > Maintenance > When Replacing the PCB
Technology > MEAP > Maintenance > When Replacing the PCB
Maintenance
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When Replacing the PCB
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Outline
If the machine fails to operate normally due to a storage drive (Flash PCB) failure or a system
(other than MEAP application) trouble, the storage drive needs to be replaced.
However, since the storage drive in this machine is directly mounted on to the PCB,
replacement of the part alone is not possible; it is necessary to replace the PCB.
Since the storage drive of the machine cannot be backed up or restored, the MEAP
application and the license le need to be reinstalled when replacing the PCB.
When the storage drive and the system are operating normally but the PCB is replaced due
to other reasons, the MEAP application and license le need to be reinstalled.
The MEAP counter information cannot be lost because it is backed up like other conventional
counters.
Note:
When the device has E code 616 displayed, this indicates that the trouble was caused
by damage to the Flash PCB. If this error occurs, the PCB needs to be replaced.
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Special license for reinstallation
When replacing the PCB, a special license le is required to reinstall the application with
the expiration date of the current counter value migrated as it is. This special license le is
handled as a service tool and cannot be obtained by end users.
In order to obtain a special license le, the service technician needs to contact the person in
charge of support at the sales company.
The service technician needs to give the device serial number and the names of the MEAP
applications that had been installed.
Since the support department of the sales company manages all the issued application
license les by device serial number, it is basically possible for them to successively issue
license les once the device serial number is conrmed.
Note:
The application that is installed with a reusable license can be reinstalled by using the
same license.
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Procedure for reinstalling MEAP applications after replacing the PCB
The following shows the procedure when replacing the PCB.
1) Preparation before replacement
The following work needs to be done before replacing the PCB.
• Some MEAP applications have a function to back up or export the data to be used. If
such a MEAP application is installed, back up or export the data in advance.
• In order to reinstall the applications, copy the licenses (special licenses, reusable
licenses, etc.) of all the MEAP applications to the laptop PC.
2) Replacing the drive
Prepare the necessary service parts, and replace the drive.
3) Reinstalling the MEAP application
When the device has started normally, obtain the jar les of the MEAP applications from the
user, and install them using the license les for reinstallation.
Installation method is the same as normal installation.
4) Importing user information
As necessary, make login service selections and import user information.
Note:
When you replace the PCB without uninstalling MEAP applications, make sure to
reinstall the previously installed applications. Unless reinstalling them, MEAP counter
will not be released and the message “The number of applications that can be installed
has exceeded the limit. Try to install this application after uninstalling other applications.”
is displayed so that the installation of new applications may not be accepted. If you
want to install new applications in this case, once reinstall the applications in-stalled
before formatting and uninstall unnecessary applications.
WARNING:
Do not install a Main PCB of another device and conduct operation check in order to
check whether an error has occurred in the Main PCB. If the PCB is replaced and the
system is started, the data on the installed PCB will be initialized.