Brother printer not picking up paper MFC-9440CN paper jam fix

First I try to fix it by cleaning the roller with rubbing alcohol

Then I order the repair kit and replace the roller and pickup thing

https://www.precisionroller.com/paper-feed-kits-for-brother-mfc-9440cn/details_56568.html

Kit includes:
(1) Pickup / Feed Roller Assembly [LR1914001]
(1) Separation Pad Assembly [LM5237001]
(1) Spring for Separation Pad [LR0931001]
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Видео Brother printer not picking up paper MFC-9440CN paper jam fix канала Dustan D