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Hi, I'm Pete. Welcome to JustAnswer! I'm reviewing your question now, and will post back with your reply ASAP.
Are you certain all fragments of paper were cleared out?
Can you try pushing a piece of thin card through the paper feed slot to ensure any tiny pieces of paper get removed?
OK, if there is no paper fragments, then there may be some paper dust on the sensor - blowing air should help clear that.
Hopefully it clears up completely for you!