Sir/Madam, I apologize for the long delay. This may be a problem with the feeder rol (defective or dirty), or a piece of paper jammed inside the printer.
Please check page 96 from this guide ===> CLICK HERE and follow the steps under "Clearing paper jams inside the machine"
And follow the steps to see if there is a piece of paper jammed inside the printer.
If no luck, please check using a flashlight, to ensure there is nothing obstructing the paper feed mechanism down inside the printer where it is not easily seen. If there is nothing obvious, un-plug the printer power supply.
Next, take a dry cloth or Q-tips and clean the rubber rollers in the automatic sheet feeder. Dust may be coating the rollers there and as they become less tacky, they cannot feed paper correctly.
Holding the printer in both hands (this has to be done by 2 or 3 people), turn it upside down and shake it for a few seconds to see if anything falls out of the paper feed area. (Sometimes objects such as pens, paper clips and so on can fall into the paper feed area and cause blockages.)
Then plug the printer back up, take your paper out and replace it with a fresh, small stack (about 5 pages) of paper.
Remove all paper from the machine and then blow out the feed roller and paper tray thoroughly with compressed air three or four times.
Please keep me posted. I apologize for the long delay.