Let me get this straight.  You do not have a source, thus arguing without factual basis, that supports your statement his notes were official rather than personal and are now trying to argue your way around the burden of proof?
[Was Director Comey writing something about a work related item?]
No, he was not.  They were personal recollection for possible future litigation like he dealt with during the Bush warrantless wiretapping.  He wrote the notes in response to what he felt was a possible threat to FBI independence.  Considering the firing of Yates that isn't too far-fetched.
[Did he write something while working for the government?]
You claim you understand the distinction and then ask this which completely disregards it?  I'm done wasting my time arguing with you as you demonstrate to have a closed mind that does not function on facts and records.