C458 random 3000 page machine code print job

[FuserNoob]

Greetings Programs,
I have a client with a C458 who came in this morning to find a 3000 page print job of machine code in the output bin.
I'm thinking network error, possibly cyber security issue?
Any suggestions?
Thanks

[Brad6784]

I would think Postscript error or someone printing using the incorrect driver, perhaps an old/different manufacturer driver with the same IP address, I’ve seen this quite a few times but I suppose it could be cyber security related. Good luck!

[FuserNoob]

I would think Postscript error or someone printing using the incorrect driver, perhaps an old/different manufacturer driver with the same IP address, I’ve seen this quite a few times but I suppose it could be cyber security related. Good luck!

Thanks for your input!
My background is in cyber security, so that's kinda my default setting.

[Dianon]

If you came from cyber security, i understand your asumtion, but i'm with Brad6784.
Most plausible and most common is a wrong/old driver on with the same IP-Address and a User not seeing that he prints on the wrong Printer.

[Synthohol]

ive seen it dozens of times, try a Ricoh driver on Konica, you're lucky it stopped at only 3000
check job log and find whose driver needs updating.