Dropped coins into papersheet feeder canon pixma mp780

Check the feed switch, you can put paper in the bottom tray or the top feeder and you press the feed switch to change from one to the other, when the rollers are dirty and paper doesn't pick up you also get that error.

Try Canon support. Type your query. Click "Search"
Example: Type "clear ADF" (You may have paper or some obstruction in the Auto Document Feeder).

http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&fcategoryid=238&modelid=10444#SupportDetailAct

That error is a sheet feeder error, the paper feeder is not moving properly. Any time I've found this problem, I've found broken gear studs and the feeder assembly needs to be replaced. Runs around $40.00 for the part.

DONT HAVE CD FOR INSTAL THE PRINTER C4480

Normal 0 Driver could be corrupt.
Disconnect the printer or at least be sure it is turned off. I'd do both and reinstall the CD software program that came with the printer. When the software program asks you to connect the printer to the USB port, do so and it should again work properly.
Hope this helps. Bud

There could be a jam right down the bottom

i too have the exact same problem and im sick to death of it...

somebody please help

Normally this can be caused by
1.) damaged gears
2.) damaged feeder motor
3.) damaged paper holder(the pins that grab the paper)

in any of the above cases you will need to take apart to see what the problem is.. if its the motor then you can change it..
if it with the feeder it self id suggest you consider buying a ney one,, even if you manage to change the gears or the feeder pins you may never be able to get it to pull correctly, eighter pulling twisted or constantly causing paper jams.. The choice is your but i'd say buy a new one

Not knowing where you are from, I can only give the following help.

Do a Google search using the following text:

pixma mp780 +driver

Note the "+driver" (no space between the "+" and the word "driver").

This will bring up a lot of sites where you can dowload the drivers.

Open printer properties click paper to use /paper size then okey