If paper jams occur frequently, even though there is no apparent problem with the machine, either one of the following two reasons may be the cause. Follow the instructions described below to reduce the frequency of paper jams.

Pulling jammed paper out of the machine by force may leave parts of the paper torn inside, leading to frequent paper jams.
If paper tears while you are trying to remove jammed paper from the machine, make sure that you remove all of the torn pieces.

Make sure that the paper loaded in the paper drawer matches the paper size/type registered in [Paper Settings] in [Preferences] (Settings/Registration).