Event ID 560 from printing

Hi,

Although only an annoyance, when users print on my network I get an error
event ID 560 in the Security log. I audit for print success/Failure and
failure to delete print jobs using the 'everyone' group. Can someone shed
some light on this and what I can do to get rid of these events. The users
all are allowed to print to these printers, and I get the usual print event
in the system log.