Re: There is a paper jam in the ADF... I have a hp 2840
The top cover piece at the left-hand end of the ADF just lifts up. Put your fingers under the edge where the paper feeds into the ADF reader and lift gently on only the plastic cover itself. It is hinged on the leftmost outside of the reader mechanism. Once that cover is lifted then the main feed roller is exposed, and it also just swings up out of the way to the left to provide easy access to the feed path. You will likely also have to lift up the entire ADF to gain access to the flat glass flatbed read platten area to access the remainder of your original.
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Just fixed my problem today. It was the ADF assembly motor. The spur gear had cracked open where it can no longer grip tightly to the center rod when the motor spins. I bought a new motor assembly from CompassMicro for the total amount of $23 and my printer is back in running order like normal again. Beats taking it to a repair center and get ripped!
HP LaserJet 3050z, 3050 All-in-one, 3052, 3055, 3390 and 3392 versatile printer - Error reported: Document Feeder Jam
How to correct the HP LaserJet 3050z, 3050 All-In-One, 3052, 3055, 3390 and 3392 versatile printer if this error is reported: Document Feeder Jam
Clear the jammed media from ADF (HP LaserJet 3050, 3050z).
Open the ADF cover plate.
Remove any jammed media with care.Take out the page gently.
Take care not to tear the paper.
Close the ADF cover plate.
Clear the jammed media from ADF (HP LaserJet 3390, 3392, 3052 and 3055).
Open the ADF cover plate.
Check whether all packaging straps inside the ADF are removed.
Unload the jam clearance component.Lift the two handles with both hands until the component clutch is released.Rotate and lift the jam clearance component, and then put it aside.
Lift the green handle, and rotate the paper picker until it is opened.
Gently remove the page without tearing it.If you feel resistance, go to the next step.
Open the ADF cover plate, and loosen the media gently with both hands.
When the media are stopped, pull the media out gently along the shown direction.
Close the cover plate of the flat scanner (HP LaserJet 3390, 3392, 3052, 3055).
Pull down the green handle.
Insert the jam clearance component to reinstall it.Press the two reeds until the component is properly engaged.Install the clearance component correctly. Otherwise, paper jams will continue to occur.
Open ADF cover Lift up Pickup roller Assy remove spring from pickup roller assy Remove pickup roller assy gently pull it towards you Carefully remove green plastic diverter note this is held in place by 4 plastic pins 2 on each side look in the opening for foreign objects. ( I have found labels, money, paperclips, plastic pieces,jammed paper in this area)