Since you have already verified that there are no jams in the printer, please turn off the printer, unplug the power cord and leave it out for at least 10 minutes, then plug it back in and turn it back on. Once the printer comes back on, please perform at least three roller cleanings on the printer by following the steps located here to ensure that the paper path is clear and that the paper can feed smoothly.
If you still experience difficulty, the printer may require servicing. We ask that you please call 1-866-261-9362, Monday - Friday 10:00 a.m. - 10:00 p.m. ET (excluding holidays) to obtain your servicing options. There is no charge for this call.
I couldn't do the Cleaning Paper Feed Roller procedure because when I turned printer On, it always go to the error message E03. I disassembled it, cleaned manually the rollers, sprayed with Marine 6-56 lubricant, cleaned again with a dry cloth....then, read your suggestion and tried to do so far...I think that it's better for me to buy a new one ( MP250 ) , because I have two (color, black) unused ink cartridges....could you let me know which other models can be used with this ink (210, 211) ?
Thank you for your rapid answer and support.
The following units use the PG-210 and CL-211 ink cartridges: