@martinhbs this problem somehow stopped occurring without doing anything that I can recall to fix it ... I definitely didn't disable any protocols, and still have AirPrint enabled. I wish I could help you out, but it's truly a ghost-in-the-machine situation
Sorry to revive this old thread, but i have that same issue with my workcenter 3215 that i just bought 1 year ago, printing an exception report every few hours which is wasting so much papers! i have the latest frirmware installed too which dates from 2018 (3.50.03.01). I have beeb trying to fix that issue for may hours now, and disabling airprint is NOT an option for us (sorry...) i cant imagine that Xerox has not released a firmware that fix that issue!! I will wait if i get a reply to this post, if not, i will have to buy a different brand of printer i guess, and will give up on Xerox..
It turns out that IPP is required for AirPrint to work, so I can't leave that disabled. I re-enabled it (but left Raw/LPR disabled) and the exception reports have started printing again, so it's definitely an IPP problem.
Downgrading the firmware does not seem to be an option as the process says completed, but it does not change the version.
I have disabled wifi and AirPrint and the problem persists. I will remove from the network completey and see what happens next.
If you are correct and the update to the General release 3.50.03.01. firmware is the cause of your problem, then downgrading to the previous spar release would solve the issue.
But if the issue isn't actually related to the upgrade of the printer, and an update was pushed to iOS that caused Airprint functionality to no longer work properly due to a change by Apple, the downgrade will do nothing. But you will have eliminated the possibility it is caused by firmware.
If you don't do Airprint, and don't do LAN security sweeps, then the downgrade will possibly fix it (just a guess really) assuming it is a glitch caused by a bad update on the printer.
But I can't guarantee anything, I have no idea where the job comes from and am just guessing here.
If it does happen every 3 hours, unhook it from the LAN, if nothing prints over night, something on the LAN is the cause, if it does print the same logs, the printer itself is the cause.
It sounds like a security scan of the printer (Something like Nessus), but the thing being printed doesn’t contain anything identical to what I have seen reported on various printer brands.
I see similar errors structure wise related to Airprint, but they tend to contain Task Name: IPP1 (IPP is the protocol for Airprint)
Those are fixed in firmware updates on the printers typically.
Cheryl - I went to the Contact Us page you referenced below. I submitted this question via the web site, and got a response saying I should call the support line. After a very long time with the support engineer, I was told to update my Windows drivers (I don't think this is related to a PC issue, but I did it anyway), but am still experiencing the issue.
Per the person I spoke to on the phone, the next option is to pay for support. So it seems like this site and the email based support simply push people towards having to pay for help.
The frustrating thing is that no one seems to know where this Exception Report is coming from, or what the Assert Log is.
If this can't be resolved without paying for support, I will most likely look at a printer from another vendor that actually stands behind and provides support for their products.