Press the door-release button, and then open the toner-cartridge door.
Release two tabs between the roller collar and roller, and then rotate the top of the roller out and away from the printer.
Remove the roller.
The M427/M426 printer is shown in this procedure. However. the instructions are valid for the M403/M402 printers. Position the replacement pickup roller with the pins in the provided slots on the holder, and then rotate the top of the roller up and toward the printer.
Continue to rotate the top of the roller toward the printer (callout 1), until two tabs (callout 2) snap into place.
Close the toner-cartridge door.
Pull the tray straight out of the printer to remove it.
Remove the pickup roller assembly (Tray 2)
Place the printer bottom-side face forward
Release one tab (callout 1), and then slide the roller holder toward the left side of the printer to release it.
Remove the roller holder.
Position the roller holder assembly in the printer as shown, and then slide it toward the right side of the printer.
Make sure that the tab snaps into place.
Carefully rotate the printer forward.
Continue rotate the printer forward until it rests in the operational position.
Install the tray