Open the ADF cover.
Remove the retaining plate, pull the shaft toward the front of the machine to detach it, and then remove the paper feed unit.
Remove the separation roller cover.
Remove the separation snap ring and roller.
Mount the new separation roller and the snap ring.
Reattach the separation roller cover.
Remove the two pick-up roller’s snap rings and bearings, and then remove the pick-up roller cover.
Disengage the shaft, remove the white component, and then remove the pick-up roller.
Mount the new pick-up roller and reattach the white component and the shaft.
Attach the cover, and then fit the two bearings and snap rings.
Pull the white component away and remove the component containing the pick-up roller.
Be sure to pull the white component away from the component containing the pick-up roller when you remove it. If you try to remove it forcefully, you may damage it.
Remove the paper feed belt cover.
The paper feed belt cover's spring comes off easily. Be careful not to lose it.
Remove the idler roller and the paper feed belt.
Install the new paper feed belt and reattach the idler roller.
Install the idler roller and the paper feed belt cover by inserting the cover's bars into the holes in the idler roller's shaft.
Attach the component containing the pick-up roller, and then pull the white component and insert the stud into it.
Install the paper feed unit by inserting the end of the left shaft into the hole and the end of the right shaft into the white component.
Reattach the stopper.
Close the ADF cover.
Reset the counter for replaceable parts.
Do not turn the machine on until you have read how to do so.