Hi, I can help with the issue.
The page curling up is due to the roller in that area either having a piece of paper stuck or needs to be cleaned.
Try to move the roller where it gets curled and look for pieces of paper. Then use a damp paper towel with Windex or water to clean the roller. Also note if you hear any noises when trying to print such as grinding noise. If there is a lot of noise, then there is a broken gear.
Please let me know if you need additional help and rate my answer based on your satisfaction. Thank you.