For a Versant 80 that is a very clean looking machine nice job!
I would try printing separate sheets of solid c, m, y, and k and see if you see any issues with those. The thin lines in the very first photo ending with 29 are from the plastic guide fingers. I get those sometimes on my 280 and another user on this site has had the same issues with his Versant 280.
If you haven’t already tried, you could put the machine in skip pitch mode or what they call Ink Setoff Prevention Mode. It will slow the engine down to about half speed. There’s also an nvm setting for this but I can’t recall what it is.
From Xerox…
When the option is On, the press skips pitches allowing the paper to cool down more
between sheets stacking up. The default setting is Off.
1. Log in as the administrator.
2. Press the Machine Status button on the UI.
3. Select the Tools tab.
4. Select System Settings > Common Service Settings.
5. Select Other Settings.
6. Select Ink Setoff Prevention.
7. Select Change Settings.
8. Choose of the following options:
• Off (this is the default setting)
• Always On
• On for Required Paper Only
9. Select Save.
10. Select Close.
The main Tools screen displays.
11. Exit the administrator mode.
