Print | Rate this content

HP LaserJet 4345mfp Series Products - How to Clear Jams

If a jam message appears on the control‑panel display, look for jammed paper or other print media in the locations that are indicated in the following figure.

1
Top-cover and print-cartridge areas
2
Envelope-feeder area and tray 1 area (the envelope feeder is optional)
3
Tray 2 and optional 500-sheet feeder areas
4
Duplexing area (the duplexer is optional)
5
Output area
6
ADF

The following table lists the jam messages that might appear on the control‑panel display. For information about clearing the jam, see the section that is indicated. You might need to look for media in locations other than those that are indicated in the jam message. If the location of the jam is not obvious, look first in the top-cover area underneath the print cartridge.

Control-panel messages for jams
Jam message
Procedure for clearing the jam
JAM IN DOCUMENT FEEDER
See Clearing jams from the ADF .
ADF PAPER JAM
See Clearing jams from the ADF .
ADF PICK ERROR
See Clearing jams from the ADF .
13.JJ.NT JAM IN ENVELOPE FEEDER
See Clearing jams from the optional envelope-feeder area .
13.JJ.NT JAM IN OUTPUT BIN
See Clearing jams from the output areas .
13.JJ.NT JAM IN TRAY 1
See Clearing jams from the tray 1 area .
13.JJ.NT JAM IN TRAY 2 (or TRAY 3, 4 or 5)
See Clearing jams from the tray 2, 3, 4, or 5 areas .
13.JJ.NT JAM INSIDE DUPLEXER
See Clearing jams from the optional duplexer .
13.JJ.NT JAM INSIDE LEFT OUTPUT AREA
See Clearing jams from the output areas .
13.JJ.NT JAM INSIDE RIGHT ACCESS DOOR
See Clearing jams from the tray 2, 3, 4, or 5 areas .
13.JJ.NT JAM INSIDE TOP COVER AREA
See Clearing jams from the top-cover and print-cartridge areas .
13.JJ.NT JAM INSIDE TRAY 2 AREA
See Clearing jams from the tray 2, 3, 4, or 5 areas .
13.JJ.NT JAM INSIDE TRAY 2 RIGHT ACCESS DOOR
See Clearing jams from the tray 2, 3, 4, or 5 areas .
13.JJ.NT JAM INSIDE TOP COVER AREA
See Clearing jams from the top-cover and print-cartridge areas .
13.JJ.NT PAPER JAM OPEN INPUT TRAYS
See Clearing jams from the tray 2, 3, 4, or 5 areas .
13.JJ.NT JAM IN STAPLER
See Clearing staple jams .

When clearing jams, be very careful not to tear jammed media. If a small piece of media is left in the MFP, it could cause additional jams. If jams are a recurring problem, see Solving repeated jams .

Loose toner might remain in the MFP after a jam and cause temporary print-quality problems. These problems shoud clear up within a few pages.

Clearing jams from the top-cover and print-cartridge areas

Clear jams that occur during the printing process by using this procedure.

To clear jams from the top-cover and print-cartridge areas

  1. Open the top cover and remove the print cartridge.

    To prevent damage to the print cartridge, do not expose it to light for more than a few minutes. Cover the print cartridge with a sheet of paper while it is outside of the MFP.
  2. Use the green handle to lift the paper-access plate.

  3. Slowly pull the jammed media out of the MFP. Do not tear the media.

  4. If jammed media is difficult to remove, open and remove the envelope-entrance cover. If media is present, remove it.

  5. Rotate the paper-release guide to check for additional jammed media underneath. If jammed media is present, remove it.

  6. Replace the envelope-entrance cover and close tray 1.

  7. Reinstall the print cartridge and close the top cover.

  8. If a jam message persists, jammed media is still in the MFP. Look for the jam in another location.

Clearing jams from the optional envelope-feeder area

This section applies only to jams that occur when you are using an optional envelope feeder.

To clear jams from the optional envelope feeder

  1. Remove any envelopes that are loaded in the envelope feeder. Lower the envelope weight and lift the tray extension up, to the closed position.

  2. Press and hold the release button on the left side of the optional envelope feeder. Grasp both sides of the optional envelope feeder and carefully pull it out of the MFP.

  3. Slowly remove any jammed envelopes from the optional envelope feeder and from the MFP.

  4. Insert the optional envelope feeder into the printer until it locks into place. Pull gently on the optional envelope feeder to be sure that it is securely in place.

  5. Fold down the envelope-feeder tray. Lift the envelope weight.

  6. Reload the envelopes, making sure that you push the bottom envelopes in slightly farther than the top envelopes.

  7. If a jam message persists, jammed media is still in the MFP. Look for the jam in another location.

Clearing jams from the tray 1 area

Use this procedure to clear jams that occur in the tray 1 input area.

To clear jams from the tray 1 area

  1. Open the top cover, open tray 1, and remove the print cartridge.

  2. Use the green handle to lift the paper-access plate.

  3. Slowly pull any jammed media out of the MFP. Do not tear the media. If part of the sheet has already been pulled into the MFP, follow the steps for Clearing jams from the top-cover and print-cartridge areas .

  4. If jammed media is difficult to remove, remove the envelope-entrance cover. If media is present, remove it.

  5. Rotate the paper-release guide to check for additional jammed media underneath. If jammed media is present, remove it.

  6. Replace the envelope-entrance cover and close tray 1.

  7. Reinstall the print cartridge and close the top cover.

  8. If a jam message persists, jammed media is still in the MFP. Look for the jam in another location.

Clearing jams from the tray 2, 3, 4, or 5 areas

Use this procedure to clear jams that occur in tray 2 or in the optional 500-sheet feeders.

To clear jams from tray 2, 3, 4, or 5

  1. Pull the jam-access lever to open the jam-access cover.

  2. Carefully pull out any jammed media from either the top or the bottom of the jam-access area.

    Use an upward or downward pulling motion to avoid tearing the media and to prevent toner from falling into the MFP.
  3. Close the jam-access cover.

  4. Slide the tray completely out of the MFP, and remove any damaged media from the tray.

  5. Slide the tray into the MFP.

  6. If a jam message persists, jammed media is still in the MFP. Look for the jam in another location.

Clearing jams from the optional duplexer

If a jam occurs during a duplex printing job, use this procedure to check for the jam and to clear it.

To clear jams from the optional duplexer

  1. Remove the output bin (or remove the stapler/stacker or the mailbox).

  2. Remove the optional duplexer, and set it aside.

  3. Check for jammed paper inside the MFP. Carefully pull out the jammed paper.

  4. Check for jammed paper in the optional duplexer. Carefully pull out the jammed paper.

  5. Reinstall the duplexer.

  6. Reinstall the output bin (or reinstall the 3‑bin mailbox or the stapler/stacker).

  7. If a jam message persists, jammed media is still in the MFP. Look for the jam in another location.

Clearing jams from the output areas

Use this procedure to clear jams that occur in the output bin, the 3‑bin mailbox, or the stapler/stacker.

To clear jams from the output areas

  1. If you are using the standard output bin, grasp the handle at the bottom of the output-bin assembly, and pull it out and then up to remove it.

  2. If you are using a 3‑bin mailbox or a stapler/stacker, remove any media that is stacked, and then press and hold the release button on the top of the device. Pull the device away from the MFP.

  3. If the jammed media is inside the MFP, carefully pull the jammed media out of the MFP.

  4. If the jammed media is inside the 3‑bin mailbox or the stapler/stacker, carefully pull the jammed media up and out of the device.

  5. If you are using a 3‑bin mailbox, the jammed media might be completely inside the device. Open the jam-access cover that is on the top of the 3‑bin mailbox, and carefully pull the jammed media out of the mailbox.

  6. Reinstall the output-bin assembly, the 3‑bin mailbox, or the stapler/stacker. Insert the device at an angle, and then slide it into the MFP.

  7. If a jam message persists, jammed media is still in the MFP. Look for the jam in another location.

Clearing jams from the fuser

Use this procedure to clear jams that occur in the fuser.

How to clear jams from the fuser

To clear jams from the fuser

  1. Turn the MFP off and wait 30 minutes for the fuser to cool.

    The fuser is very hot. To avoid minor burns, wait 30 minutes for the fuser to cool before removing it from the MFP.
  2. If you are using the standard output bin, grasp the handle at the bottom of the output-bin assembly, and pull it out and then up to remove it.

  3. If you are using a 3‑bin mailbox or a stapler/stacker, remove any media that is stacked, and then press and hold the release button on the top of the device. Pull the device away from the MFP.

  4. Remove the optional duplexer or the duplex cover.

  5. If you cannot see the jammed media inside the fuser, skip to step 9.

  6. If you can see either the leading edge or the trailing edge of the jammed media inside the fuser, carefully pull it out.

  7. If you can see the jammed media, but neither the leading edge nor the trailing edge is visible, gently pull on the sides of the sheet of media until one edge becomes free. Then carefully pull the jammed media out of the fuser.

  8. If the media tears as you are removing it, turn the green dial on the fuser, and then carefully pull out the jammed media. Go to step 13.

  9. To remove the fuser-entrance guide, push inward at the left edge to free the left-side alignment pin. Then lift up slightly on the fuser-entrance guide, and remove it from the MFP.

    -or-

    Place your forefingers on the blue levers on the bottom of each side of the fuser. Place your thumbs on the grip points on the top of each side of the fuser. Squeeze the blue levers up, and remove the fuser from the MFP.

  10. Open the black cover at the top of the fuser, and remove the jammed media.

  11. Reinstall the fuser. Push on the fuser with your thumbs to be sure it snaps securely into place.

  12. To reinstall the fuser-entrance guide, first insert the right-side mounting pin into the hole on the right side, and then lower the left-side mounting pin into the hole on the left side.

  13. Reinstall the duplexer or the duplex cover.

  14. Reinstall the output-bin assembly, the 3‑bin mailbox, or the stapler/stacker. Insert the device at an angle, and then slide it into the MFP.

  15. If a jam message persists, jammed media is still in the MFP. Look for the jam in another location.

Clearing jams from the ADF

Use this procedure to clear jams from the ADF.

  1. Lift the ADF-input tray, and check for jammed media underneath the tray. Carefully remove any jammed media.

  2. Pull up on the ADF-cover-release lever, and open the ADF cover. Carefully remove any jammed media.

  3. Lift up on the ADF-document guide, and check for jammed media. Carefully remove any jammed media.

  4. Close the ADF cover.

  5. If a jam message persists, jammed media is still in the MFP. Look for the jam in another location.

Clearing staple jams

Occasionally, staples become jammed in the optional stapler/stacker. If jobs are not being stapled correctly or are not being stapled at all, use this procedure to clear staple jams.

To clear staple jams

  1. Turn off the MFP.

  2. Press and hold the release button on the top of the stapler/stacker. Pull the stapler/stacker away from the MFP.

  3. Open the staple-cartridge cover.

  4. To remove the staple cartridge, pull up on the green handle and pull out the staple cartridge.

  5. Lift up on the small lever at the back of the staple cartridge.

    procedure illustration
  6. Remove the staples that protrude from the staple cartridge.

  7. Close the lever at the back of the staple cartridge. Be sure that it snaps into place.

  8. Reinsert the staple cartridge into the staple-cartridge holder, and push down on the green handle until it snaps into place.

  9. Close the staple-cartridge cover, and slide the stapler/stacker into the MFP.

Solving repeated jams

Situation
Solution
General repeated jam problems
Make sure that the media is loaded correctly in the trays and that all width guides are set correctly.
Make sure that the tray is set for the size of media that is installed and that the tray is not overloaded.
Try turning over the stack of media in the tray. If you are using prepunched or letterhead paper, try printing from tray 1.
Do not use media that has been printed on previously or torn, worn, or irregular media.
Check the media specifications. If media is outside of the recommended specifications, problems can occur.
The MFP might be dirty. Clean the MFP.
Check that all damaged or jammed media is removed from MFP.
Repeated jams in the ADF
The ADF might be dirty. Clean the ADF.
Make sure that the media is loaded squarely and that the media-width guides are adjusted to the sides of the media stack.
Make sure that no more than 50 sheets of 75 g/m2 (20 lb) bond paper are loaded in the ADF.
If the original document that is being copied has been folded or stapled, flatten it as much as you can and smooth any wrinkles. Make sure the pages are not stuck together where the staple was.
Media that has been pre-punched or perforated in any way might be difficult to feed through the ADF. If the leading edge of the document is excessively worn or frayed, try rotating the document 180 degrees before copying.
Make sure that the media is being stored correctly. If the media is too dry, the sheets might stick together.
If jams continue, contact your HP-authorized service provider. (See the HP support flyer or go to http://www.hp.com/support/lj4345mfp .)

Using the paper-path test

The paper path test can be used to verify that various paper paths are working correctly or to troubleshoot problems with tray configuration.

To start the paper-path test

  1. Touch Menu .

  2. Scroll to and touch DIAGNOSTICS .

  3. Scroll to and touch PAPER PATH TEST .

  4. Select the input tray that you want to test, the output bin, the duplex printing accessory (if available), and number of copies, touching OK after you set the value for each. After selecting the last option, touch PRINT TEST PAGE .

Provide feedback

Please rate the information on this page to help us improve our content. Thank you!