Paper jammed - can you talk me through how to release from the rear of the printer

Have you read the Manual on paper removal? It mentions a rear panel that can be removed. That might free up the rollers:
If the paper jam is near the paper input tray:
1. Remove the paper tray.
2. Pull firmly on the paper to remove it.
3. Replace the paper tray.
4. Press the Select button .
5. Resend your print job to print any missing pages.
If the paper jam is not visible:
1. Turn off the printer.
2. Lift the printer unit.
3. Firmly grasp the paper, and gently pull it from the printer.
4. Close the printer unit.
5. Turn on the printer, and print the document again.
If the jam is located in the duplex unit or near the rear access door:
1. If you have a duplex unit, remove it.
2. Open the rear access door.
3. Firmly grasp the paper, and gently pull it from the printer.
4. Close the rear access door.
5. Re-install the duplex unit.
6. Press the Select button to continue printing.
If the paper jam occurs near the ADF:
1. Lift the ADF cover located to the left of the ADF input tray.
2. Firmly grasp the paper, and then gently pull it from the printer.
3. Close the ADF cover.
4. Press the Select button .
5. Resend your print job to print any missing pages.

After a paper jam occurs in the rear cover of a Dell Laser Multi-Function Printer 1815N, the printer will not resume when the jammed paper is removed. This is the normal behavior of the printer as there is no sensor on the rear cover of this printer.

To open the back cover and remove any stuck paper, perform the following steps:

1. Open and close the front cover.
   The jammed paper may automatically exit the printer. If the paper does not exit, go to the next step.
2. Gently pull the paper out of the output tray.
3. If you cannot see the paper in the output tray or the paper does not move when pulled, open the rear cover.
4. Skip to step 9. If you do not see the paper, go to the next step.If you see the jammed paper, push the two blue pressure levers up and remove the paper.
   
5. Release the blue strap, the rear cover stopper, and fully open the rear cover.
6. Unfold the duplex guide fully.
7. While pushing the fuser lever to the right, open the fuser door. NOTICE: Make sure to unfold the duplex guide before opening the fuser door, or the fuser door may be damaged.
   
8. Pull the jammed paper out.
9. Return the levers, fuser door, rear cover stopper, and duplex guide to their original position.
10. Close the rear cover.
11. Open and close the front cover.
    Printing automatically resumes.

Welcome to FixYa!

Don't try to pull out the jammed paper at the front panel of the printer. You might risk damaging your printer. Remove the jammed paper from the "Back Door" of the printer. The type of backdoor depends on what kind of HP printer you have. Below are 2 common backdoor of HP printers.


1. Press the Power button to turn on the printer.
2. While the printer is still on, disconnect the power cord from the rear of the printer.
3. Turn the printer so that the rear of it faces you.
4. Press in the tab on the left side of the rear door to release it. Then pull the door away from the printer to remove it.
5. Gently pull any jammed paper out of the rollers with your two hands.
6. Return back the back door. Gently push the door forward until it snaps into place.
7. Plug the power cord into the printer.
8. Turn the printer on again using the power button.

Note: Make sure to remove the jammed paper cautiously, any small pieces of paper left inside the printer might cause additional paper jam.

Some HP printers uses a latch to open the backdoor. Refer to the image below:

I hope that this will help you.
Thank you for using FixYa and keep me posted.
Jas247

Clearing a paper jam

If the paper jams in the printer, follow the steps below to clear the jam:

Remove the paper stack from both paper trays.

Press the POWER button. Instead of turning off, the printer will try to eject the jammed sheet.

If the printer cannot eject the paper, unplug the power cord from the back of the printer.

NOTE: Do not press the POWER button again before unplugging the power cord.

Open the rear access door at the back of the printer. To do this, press the handle to the right and then pull out the door.

Remove the jammed paper. Make sure no small pieces or obstructions remain.

Reattach the rear access door and plug the power cord back into the printer.

The printer will turn on automatically and be ready for printing again.

Reload the paper in the IN tray.

Try printing again.

If the HP All-in-One has a paper jam, first check the rear door. If the jammed paper is not
in the rear rollers, check the top door.

To clear a paper jam from the rear door
1. Turn off the HP All-in-One.
2. Press in the tab on the rear door to release the door. Remove the door by pulling it
away from the HP All-in-One.
CAUTION: Trying to clear a paper jam from the front of the HP All-in-One can
damage the print mechanism. Always access and clear paper jams through the
rear door.

Page 148 of manual here will show you more info as well as photos on hoto.

If you are satisfied with my answer, be sure to click on the "Thumbs-Up". If you have further questions, please feel free to ask them. Thanks for using our service!

You have a broken gear main motor. I had the same problem, bought $5 part and after the replacement of the gear,it runs like new

You have to take off the roller . :)

sry, dont understand, where is the paper jam, in the end at the fuser ? or some where else?

Try this linke below.
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=110&prodSeriesId=411171&prodTypeId=18972&prodSeriesId=411171&objectID=c00642524

Or i cut and paste text, but you should view pictures. If you cannot get to it from link. Try typing "Paper jams alternating between front and back door" It should be first link from HP about a 3550.

document.tlSearch.tx.value=unescape("")
HP Color LaserJet 3500, 3550, and 3700 Series Printers - Paper Jams Alternating Between Front and Back Door Issue Description Customers may see paper jams error messages with no paper seen in the paper path. The message will alternate between check the front door and the back door. Workaround The release lever engagement tabs on the rear door can be bumped into the in-correct position. The purpose for this tab is to re-engage the fuser release levers as the rear door is closed. When one or both of these are left in the in-correct position the printer goes into a cycle of alternating between a "Jam in the Front Door" message and "Jam in the Rear Door" message. There is no paper present in the paper path when this happens. When a customer gets the "Jam in the Front Door" message and opens the front door, no paper is found. After the customer closes the front door, they get the "Jam in the Rear Door" message. When they open the rear door, find not paper (even pull out the fuser), and close the rear door, they get the "Jam in the Front Door" message. This cycle will continue

Placing both engagement tabs in the "Correct" position solves the problem and allows the print job to continue.for as long as the customer is willing to keep checking.