Greetings Chris,
Nothing inside you should need to lubricate.
The components should be kept clean and free from dust. Paper is actually more dirty than people think. Canned air works really well too.
I somethimes use Alcohol swabs. If something is really squeaky, I have used white lithium grease applied with a toothpick to a specific problem area.
It can't be near any paper feeding however. Less it more, use sparingly.
~Rick
Bay Area - CA
~R5 C (1.0.6.1) ~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring, BG-R10, 430EX III-RT ~DxO PhotoLab Elite ~DaVinci Resolve ~Windows11 Pro ~ImageClass MF644Cdw/MF656Cdw ~Pixel 8
~CarePaks Are Worth It
