There is no user-friendly way to reset the device. Best bet is to have a tech do an ALTboot no data backup. This will wipe it out completely.
But, the firmware you have listed is the launch firmware, there are many fixes available that should be done, in fact there is an entire upgrade to Connectkey 1.5 that should really be done. The latest version is 072.010.124.23401.
This will take you from Connectkey 1.0 to Connectkey 1.5, there are significant upgrades to the scannig capability, including support for Server 2012. But....
Going this far into an upgrade means no clone can be used, technically no upgrade should be done. It should be a complete load, what is refered to as a "Forced Altboot, no data backup, no clone"
As a support rep that deals with this particular device daily, I *highly* suggest this route, the tech deals with the upgrade, but you would then need to set it up again from scratch as everything will be gone.
On the plus side, it is guaranteed to solve the template issue and give you more robust scan capability, as a minus you will need to take the time to redo the settings, but as you stated, that is not an issue.
I apologize for being so late in responding, I have been away for a week on vacation.