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Anyone know what issue these lines indicate on Xerox C-75 Printer?

hamedsalehi1

New Member
Hey so I have a Xerox C-75 digital printer that hasn't been turned on for a little and I'm now trying to get it back running but I ran into a couple problems, I'd really appreciate some help.
First and biggest problem is these red lines that comes across literally anything I print, and I know that the drum is physically in good conditions so I really can't figure out what it could be (I attached a few pictures for anyone that's willing to help down below for all of these problems).
Second problem is these white gaps, sort of empty spots that the printer seems to just skip over spaces in the prints, so I'm really wondering if it's about the drum, developer, IBT Belt or anything else but those would be my main guesses.
and third problem is the difference between prints that are taken after I copy something and prints when I send something to the printer, two completely different results, the copy paper becomes much darker and bad (Scan prints are completely fine) so I know it's not a physical problem, maybe a scanner problem? or my guess would be the printer controller? its a SBC controller if anyone a little more technical and has dealt with it.
Thank you, any help would be appreciated.
Pictures of every problem down below ↓↓↓
 

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