In this situation, you can try opening the feeder cover using the steps in the link HERE and checking for any obstructions. We would be happy to assist with the issue. To provide some feedback or some troubleshooting steps, we would need some additional information. If you could reply to this message with the information below, we can provide some assistance.
If the paper jams on a specific side, it will usually point to something in the paper feed path. In this situation you can try opening the feeder path using the steps in the link HERE Once the cover for the feeder path is open, you can try inserting some stiffer paper into the paths the paper feeds into or using some compressed air to try and clear out any obstructions.
If that does not resolve the issue, it looks like the printer needs service. you can use the link HERE to access your My Canon account and check your service options.