Clear out all scanner emails without entering a pin

[Rhollen]

I have an HP 7820 printer.  There are a number of email addresses loaded into the scanner that are no longer valid and I want to remove because, while I can add email addresses, the older ones are listed first.  I would prefer just to remove all email addresses and start over with email addresses used to scan documents.  However, when I attempt to delete an invalid email address, it asks for a pin and I am unable to remove the email address since I don't have access to that email address.

Is there a way to completely delete all the scanner email addresses without requiring a pin so I can start over fresh?

[Rhollen]

Sorry it’s HP 7855.  I removed web services and then did a scan - email and turn web services back on. The old email addresses are still there and I can’t delete them without a pin.