Until an admin steps in with thoughts, have a look to see if they previously checked these boxes in XSA to allow print via airprint.
This post likely doesn't belong here since it has no relation to the Mobile Print Cloud platform from the appearance, just Connectkey via Airprint unless you missed some info in the post. And it shows the 34540 firmware, I would update that.
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I have a partner who is setting up a Xerox 7225 (SN: LX7166713) with Account Codes. They are able to get the Air Print working, but it does not get tracked as a print job. They have tried multiple accounts, which are all printing, they just do not get tracked. They have upgraded the IOS to the latest that supports accounting and finishing via Airprint. Thanks