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The default System ID and Pin from the factory is 7654321. If the number does not work for the System ID and Pin, you have changed it. You will need to contact our support representives via telephone to set it back to factory default. Our support is available at 1-800-OK-CANON (1-800-652-2666) Monday-Friday from 10:00 am to 6:30 pm ET, excluding holidays.
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