The printer takes all the papers in but prints on one how can i make it take one pagg at a time

I've heard that a little sanding the rollers with some course sandpaper sometimes gives them a little extra life...

Sounds like the rollers used to grab the paper are worn down.

According to this page that references replacable parts for that model, it doesn't look like the rollers are on the list:

http://www.dttservice.com/printers/canon...

It looks like with the price of the replacement parts anyways that it may be just cheaper to buy a new printer.

Printers have feed rollers and separation rollers or separation pad.In your case, separation roller or pad is the problem.
Separation rollers separate sheets from each other.Clean it or replace it.

you will need som of these rollers:

Paper feed Roller Ass'y
part No: RM1-0037-020

Paper Pick-Up Roller ass'y
Part No: RM1-0036-020

Google the part number and you should be able to find a local dealer of them

Take a soft cotton wiping rag with warm water and mild detergent and clean your printer surface areas well being careful not to break or damage any thing or get any electrical part wet just the surface areas where the paper feeds. After thoro cleaning carefully dry the same areas you clean with a dry cotton rag.
You should see a noticable difference next time you use your printer. Cleanliness is next to Godliness and Computers and Printers like it too.

It's a pickup roller problem. You can try cleaning them with alcohol, realizing that eventually that process will dry out the rollers. The problem is the paper dust gets on the rollers and "clogs" them, making them slippery...or it could be the separation pad opposite the pickup rollers...I would clean that as well.

I had this problem and I cleaned the rollers. It worked for quite a while after that. Worth the effort.

clean the separator pad, just under the paper pickup rollers. Water and cloth. or a toothbrush soaked in water,.

I just took the back of the machine off by unscrewing five screws and that gave me access to the feed rollers.

I used isopropol alcohol and Q-tips to clean the rollers and the pads under the rollers.

This fixed my problem.