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Try this this may solve your problem :-
Clean the eject rollers with a paper towel dampened with water. A second cleaning may benecessary. The easiest way to do this (without fully disassembling the machine for full accessto the rollers) is:For flatbed models- Lift open the control panel/ADF assy to access the exit area and ejectrollers. Hold the dampened paper towel against the rollers and make a blank copy. Clean therollers as they turn and remove the paper towel as the paper ejects. Repeat as necessary.For sheetfeed models- Open the front and rear covers. Swing the rear chute cover down.Remove the Document Base Assy (2 screws) to facilitate the side cover removal. Remove theright side cover (2 screws). Remove the rear cover stopper (1 screw, squeeze the tabs on themounting clip). Remove the inner chute above the fuser (2 screws, do not lose the spring).Wipe the eject rollers with the dampened paper towel. Reassemble in reverse order.Now is a good time to also clean the paper pick up roller and feed rollers to preventfeeding problems