Extruder Gear maintenance?

I was looking at the extruder gear on my A1, is this normal buildup or should it be keeping completely clean. Could this be causing issues?

Hey have you been having problems with your A1 cuz as an A1 Printer user I’ve actually never checked the gear on my printer. Maybe that could be the reason that some of my prints got a little bit bad quality.

I have been having some quality issues, just not sure if this is the issue or not