LULZBOT TAZ 6 failing low quality prints

Hello,
I've been using a lulzbot at my work for some time and it has stopped making quality prints at this point. I am trying the diagnose what steps I should take to try and get it up and working again. Here is a list of items that I am considering adjusting to attempt to fix the issues that I've been having. Since there is a few let me know if I'm barking up the wrong tree on any of them.

• Extra restart distance to retract the filament
• Tighten belts and oil rods to prevent slipping (which where not shown in the example failed print is an issue that was occurring previously).
• slow motor speed and acceleration to increase accuracy
• adjust idler tension to prevent stripping which could be why the print failed to finish.
• switching off combing to reduce the scarring on the sides
• and lastly enable coasting
  Beyond those I am out of ideas and any suggestions would be appreciated. with the example prints The print stopped extruding after reaching the top of what you can see.

Attachment 11484