Oh ... you can do a U021, which will clear the fax job, but that's the only other way. Fax jobs cannot be removed so easily. Print and copy jobs can be easily deleted, but not fax jobs. I credit it to the Panasonic manufactured fax boards.

You may have noticed that the fax job returned when you reinstalled the fax board, and printed.

I had a similar issue on a Stratos (CS-2560). The machine was unable to proceed past a fax job in the queue for an unknown (still unknown) reason. On this occasion I did the U021, and had to restore quite a lot of network setup, including fax forwarding. When it occurred again a year later I pulled the fax board, and ran U906. When I reinstall the fax board, the job printed.

It's just another quirk of Kyoceras. =^..^=