If you are 100% sure there is no paper inside the printer, then it may be a foreign object inside it.
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, 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.
Please test the machine and let me know the results.
Remember this doesn't have to be the final communication. We can continue the conversation for no additional charges.
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