My canon printer/copier does not feed paper in machine. makes all the sound but wont feed. help

1. Try cleaning the paper feed rollers

Instructions how to clean the paper feed rollers.
If the paper feed rollers become dirty, they may not be able to properly feed paper due to the feed roller's slippage.
If paper does not feed correctly, perform the following to clean the paper feed rollers:

1. Open the Printers folder.
   
   - For Windows XP Home Edition : Click/Select 'Start,' 'Control Panel,' 'Printers and Other Hardware,' and 'Printers and Faxes.
   
   - For Windows XP Professional Edition : Click 'Start' and 'Printers and Faxes.'
   
   - For Windows Vista : Click 'Start,' 'Control Panel,' 'Hardware and Sound,' and 'Printers.'
   
   - For Windows 2000 : Click/Select 'Start,' and 'Settings,' then 'Printers.'
2. Right-click the icon of the printer for paper feed roller cleaning, and select 'Properties' from the displayed list.
3. Click the 'Maintenance' tab and click 'Roller Cleaning'.
   
   Remove all sheets of paper from the rear tray, then click 'OK'.
4. Confirm the message, and click 'OK'.
   Note: Clicking 'OK' will activate the paper feed rollers 30 times. This activation will take about 90 seconds. Do not perform other operations until this operation has finished.
5. Confirm the message, and click 'OK'.
   
   After the continuous paper feeding operations in step 5 have finished, load three sheets of plain paper and click 'OK'.
   
   
   
6. Confirm the message, and click 'OK'.
   
   Note: “Feed roller cleaning is completed” message is displayed when the paper is fed and ejected.
   
   Click 'OK'.

Try this, it worked for my ip pixma 1800: Open lid, brush a light coat of rubber cement onto the rollers. Close lid. Run roller cleaning to spread the rubber cement over all the rollers. Let dry overnight. Then run bottom plate clean and roller clean. Then print a test page. It should grab. Note: be sure the paper is aligned straight against the right guide of the paper tray. Mine's so old I have to use a clothes pin to stop it lopping off a little to the left side. Even that can cause a "paper jam". It works. Hope it does for you..