Display is saying "13.2 paper jam open input trays

Here are the things that a steady red light may indicate (from the Owner's Manual):

• A paper jam has occurred. To solve the problem, see "Clearing Jams in the Paper Tray". • The front cover is open. Close the front cover. • The top cover is open. Close the top cover. • The paper tray is empty. Load paper in the tray. See "Loading Paper". • A toner cartridge is not installed. Install a toner cartridge. See "Installing the Starter Toner Cartridge".
• A paper jam has occurred. Check the paper tray area.
• The front cover is open. Close the front cover.
• The top cover is open. Close the top cover.
• The paper tray is empty. Load paper in the tray.
• A toner cartridge is not installed. Install a toner cartridge.

Thank you contacting FixYa for your printer inquiry.
This error is associated with either a sheet of paper blocking the paper path or a partial piece of paper that blocks path or trips a sensor. The printer will usually throw up a error code 13.XX on the display and the XX is a number that will indicate where in the paper path this error most probably occurred. Just follow the steps for your error on the below chart.
This link will take you to the user guide which will be helpfull identifying components and providing guidelines for most of the helpful hints and things you will need to know about this printer.
http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c00218691/c00218691.pdf
Locate your error on the matrix below and follow the steps. Comment back if you need more help. Thank you again for contacting FixYa.
TF
HP Laserjet Error Codes 0 - 19 Message on printer Display Panel What it means. What to do. 13.XX PAPER JAM [LOCATION] Media is jammed at the specified location (and possibly at other locations). If the message persists after all jams have been cleared, a sensor or sensor lever might be stuck or broken. For all jam messages, do the following: 1. Remove jammed print media from the specified location. Check the entire paper path for other pieces of media in the path. 2. Open and close the top cover to clear the message. 3. Check sensors and flags in the paper path for proper operation. 3.0 PAPER JAM [LOCATION] A non-specific paper jam occurred. 1. Remove jammed media from the specified location. 2. Verify the paper tray is fully closed. 3. Inspect and/or replace the feed and separation rollers. 4. Ensure there is no obstruction in the path, such as a torn piece of paper. 5. Open and close the top cover to clear the message. 6. Check sensors and flags for proper operation. 13.1 PAPER JAM OPEN INPUT TRAYS Paper-delay jam at paperfeed area. 1. Ensure that paper trays are loaded and adjusted properly so media can feed from the tray. It might be necessary to reduce the stack height of media in the tray. 2. Check the input area for obstructions such as media in the path. Also check to see if the registration assembly damaged or unseated. 3. Replace any defective sensors or flags. 4. Verify the media meets the specifications. 5. Check the pickup feed and separation rollers for unusual wear. Replace as needed. 6. Rotate the media in the input tray by 180° and/or turn it over On NX engines this is most likely the fuser flag or the ACPM. The ACPM has a photosensor hard-wired to the back of it. 13.10 PAPER JAM CHECK DUPLEXER Jam at duplexer. 1. Check the duplexer and the rear area of the printer for obstructions or damage. 2. Check the duplexer for proper operation. Replace the duplexer if a sensor is defective. On a 5si, 8000, or 8100 series laserjet a Duplex Jam can be caused by a tray 2 and 3 feed assembly failure. 13.14 For Laserjet 5si. This error is caused by a defective paper control PCA Replace paper control PCA. 13.2 PAPER JAM OPEN INPUT TRAYS Paper-stopped jam at paper-feed area. 1. Check the input area for obstructions such as paper in the path. Also check to see if the registration assembly is damaged or if the transfer roller is out of place. 2. Replace any defective sensors or flags. 3. Ensure the media does not exceed the maximum length. 4. If multiple sheets are feeding, it might be necessary to fan the media and reduce the stack height. Also, replace separation pad. 5. Verify that the fuser is properly installed. On NX engines this is an input jam. 13.20 PAPER JAM CHECK REAR DOOR Media stopped in the paper path during power on or when the top door was closed. 1. Remove all media in the paper path, and then open and close the top cover. 2. If the message persists after all media is removed: Check if media is jammed in the prefeed area. Replace any defective sensors or flags 13.21 DOOR OPEN JAM The top cover was open while printing. 1. Clear the jam and close the top door. 2. If the message persists, check the top door switch for proper operation. 13.5 PAPER JAM CHECK REAR DOOR Paper-delay jam at fuser. 1. Check the transfer roller and small media belt to ensure they are operating and can feed print media. 2. Check the paper path for obstructions at the transfer roller, toner cartridge, paper feed assembly, and fuser. 3. Replace any defective sensors or flags. 4. Turn the media stack over and/ or rotate it by 180° in the input tray. If still persists - replace fuser, then DC controller. 13.6 PAPER JAM CHECK REAR DOOR Paper-stopped jam at fuser. 1. Check the paper path for obstructions at the fuser and output/delivery area. 3. Replace any defective sensors or flags. 13.99 PAPER JAM [LOCATION] A non-specific paper jam occurred. 1. Remove jammed media from the specified location. 2. Verify the paper tray is fully closed. 3. Inspect and/or replace the feed and separation rollers. 4. Ensure there is no obstruction in the path, such as a torn piece of paper. 5. Open and close the top cover to clear the message. 6. Check sensors and flags for proper operation

Why dont you try remove the drum and cartridge, just try it

paper jam on hp laserjet

1. Unplug machines power cord from the power outlet. 2. Lift the scanner cover using the plastic tabs, located on the left and right side of the machine until it locks securely into the open position. 3. Remove all of the paper scraps stuck inside the machine. NOTE: The print head can be moved manually with hand to assist with removing all of the paper scraps.

4. Turn the machine around and open the Jam Clear Cover (1). Look inside the machine and remove any jammed paper. Then close the Jam Clear Cover (1).

5. After removing all of the paper scraps, Close the scanner cover by lifting the scanner cover to release the lock. Gently push the green scanner cover support down and then close the cover.

6. Remove the paper tray from the machine.

7. Place one of your hands under the LCD unit and into the opening of where the paper tray was.

8. Using your hand, lift the front of the machine approximately 6 inches off the surface.

9. Look inside the tray areas roof of the machine and you should see a row of black rollers. See picture below.

10. Look in-between each of the black rollers for a piece of stuck scrap paper. (A flash light may need to be used if you are having trouble locating the paper scrap).

11. Using a pair of tweezers, the paper scrap can be easily removed from the exit rollers.

12. Place the machine gently down onto the surface.

- If paper scraps were found and removed from the machine, continue to STEP 13.

- If no paper scraps were found inside the machine, the paper in the tray may be causing the issue. If the paper is slightly curled, the print head will catch the edge of the paper and tear it. To resolve the issue, the paper must be replaced.

- If you do not have replacement paper, follow the rest of this solution, after you have replaced the paper.

- If you replaced the paper, continue to STEP 13.

13. Put the paper tray back into the machine.

This error message is displayed by the printer when paper is jammed in one or more locations. In such a case, users are recommended to remove the jammed paper from the specified location. The entire paper path must be checked for any pieces of paper. To stop the message, open and close the top most cover of the printer. Lastly, verify the flags and the sensors. If the problem persists, the cause of the error message could be a broken sensor or sensor lever.

If message in display panel reads [13.XX PAPER JAM [LOCATION]]Media is jammed at the specified location (and possibly at other locations). If the message persists after all jams have been cleared, a sensor or sensor lever might be stuck or broken.
Soln.
For all jam messages, do the following: 1. Remove jammed print media from the specified location. Check the entire paper path for other pieces of media in the path. 2. Open and close the top cover to clear the message. 3. Check sensors and flags in the paper path for proper operation.

For message 3.0 PAPER JAM [LOCATION]
means A non-specific paper jam occurred.
Soln
1. Remove jammed media from the specified location. 2. Verify the paper tray is fully closed. 3. Inspect and/or replace the feed and separation rollers. 4. Ensure there is no obstruction in the path, such as a torn piece of paper. 5. Open and close the top cover to clear the message. 6. Check sensors and flags for proper operation.

For more help check yhis site

http://www.printertechs.com/tech/error-codes/error-codes-0-19.php

Hi Good day!! here are the steps how to remove paper jam in brother hope it help's you!!
1. Pull the paper tray completely out of the printer.
2. Pull the jammed paper up and out of the printer.
3. Press the cover release button and then open the front cover.
4. Pull out the drum unit assembly. Pull the jammed paper up and out of the printer. If you cannot remove the drum unit assembly easily at this time, do not use extra force. Instead, pull the edge of the jammed paper from the paper tray. If the jammed paper can not be pulled out easily, turn the jam dial towards you as you gently pull the paper out.
5. Open the face-up output tray. Pull the jammed paper out of the fuser unit. If the paper jam can be cleared.
6. Open the jam clear cover. Pull the jammed paper out of the fuser unit.
7. Close the jam clear cover. Close the face-up output tray. If the paper jam still cannot be cleared, for HL-5130 and HL-5140 users go to Step 10, and for all other users go to the next step.
8. Pull the Duplex Tray completely out of the printer.
9. Pull the jammed paper out of the printer or the Duplex tray. Put the Duplex tray back into the printer.
10. Push the lock lever down and take the toner cartridge out of the drum unit assembly. Take out the jammed paper if there is any inside the drum unit.
11. Put the toner cartridge into the drum unit until you hear it lock into place. If you put it in properly, the lock lever will lift automatically.
12. Put the drum unit assembly back in the printer.
13. Put the paper tray in the printer.
14. Close the front cover.

There should be a way to unlock one of the sides. Try taking out the toner cartridge and going in that way. If you can see the paper, get a pair of needle nose pliers and SLOWLY see if you can pull the paper out.

Here is what HP has on the subject of the triangle light flashing:
1 - Attention Light 2 - Ready Light 3 - Go Light Figure 2: Printer light key 1 - Symbol for light off 2 - Symbol for light on 3 - Symbol for light blinking
Door open, media out, no print cartridge, or media jam

The printer is in an error state that requires operator intervention or help. Check the following:

• The print cartridge door is completely closed.
• Media is loaded.
• The print cartridge is correctly installed in the printer.
• There is no media jam.

Figure 8: Paper jam 13.JJ.NT JAM IN TRAY 1

13.JJ.NT JAM IN TRAY X

The Attention LED is blinking. Check paper loading then open and close top cover.

When there is a jam in tray 1, verify the paper is loaded correctly, open and close the top cover. Pressing GO is ignored.

When there is a jam in tray X, verify the paper is loaded correctly, open and close the top cover. Pressing GO is ignored. These are the error explanations for just the flashing triangle light, there are many more, but none for just the flashing triangle.

If the light pattern is different let me know (other lights on as well)
-Hope this helps.