Did you get this issue resolved?
I have exactly the same issue and same printer.. it is really hard to get hold of tech in the UK and i am out of warranty.. Just wondering if anyone else has solved this issue as there is not much info about it available.
Update the machine firmware. If this did not help you will need a tech to perform NVRAM INIT MODE or even FACTORY INIT MODE,
My printer is set to a limit of 1000 impressions. I guess that is why I get error code 016-519. I can not find anywhere to reset or increase the limit. Manual for the printer does not say anything about it.
Thank you for the help!