Canon MG8100 series On-Screen Manual page 1111

Advanced Guide >
About Network Communication
Forgotten
N047
The Admin Password Set to the Machine Was Forgotten
Initialize the LAN settings.
Restoring the Machine's Network Settings to Factory Default
After initializing the LAN settings, refer to your setup manual of the machine to set up the machine again.
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Troubleshooting > The Admin Password Set to the Machine Was
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