HP LaserJet M4345 MFP Series Products – 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: Locations of printer jams
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)
5Output area
6Document feeder
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. It may be necessary 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
Clear jams from the document feeder .
ADF PAPER JAM
Clear jams from the document feeder.
ADF PICK ERROR
Clear jams from the document feeder.
13.JJ.NT JAM IN ENVELOPE FEEDER
Clear jams from the optional envelope-feeder area.
13.JJ.NT JAM IN OUTPUT BIN
Clear jams from the output areas.
13.JJ.NT JAM IN TRAY 1
Clear jams from the tray 1 area.
13.JJ.NT JAM IN TRAY 2 (or TRAY 3, 4 or 5)
Clear jams from the tray 2, 3, 4, or 5 areas.
13.JJ.NT JAM INSIDE DUPLEXER
Clear jams from the optional duplexer.
13.JJ.NT JAM INSIDE LEFT OUTPUT AREA
Clear jams from the output areas.
13.JJ.NT JAM INSIDE RIGHT ACCESS DOOR
Clear jams from the tray 2, 3, 4, or 5 areas.
13.JJ.NT JAM INSIDE TOP COVER AREA
Clear jams from the top-cover and print-cartridge areas.
13.JJ.NT JAM INSIDE TRAY 2 AREA
Clear jams from the tray 2, 3, 4, or 5 areas.
13.JJ.NT JAM INSIDE TRAY 2 RIGHT ACCESS DOOR
Clear jams from the tray 2, 3, 4, or 5 areas.
13.JJ.NT JAM INSIDE TOP COVER AREA
Clear jams from the top-cover and print-cartridge areas .
13.JJ.NT PAPER JAM OPEN INPUT TRAYS
Clear jams from the tray 2, 3, 4, or 5 areas.
13.JJ.NT JAM IN STAPLER
Clear staple jams.
When clearing jams, be very careful not to tear jammed media. If a small piece of media is left in the device, it could cause additional jams.
Loose toner might remain in the device after a jam and cause temporary print-quality problems. These problems should clear up within a few pages.
Clear jams from the top-cover and print-cartridge areas
Open the top cover and remove the print cartridge.
2: Location of top cover and top cover release button
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 device.
Use the green handle to lift the paper-access plate.
3: Location of paper-access plate handle
Slowly pull the jammed media out of the device. Do not tear the media.
4: Example of jammed media removal
If jammed media is difficult to remove, open tray 1 and remove the envelope-entrance cover. If media is present, remove it.
5: Location of envelope-entrance cover
Rotate the paper-release guide to check for additional jammed media underneath. If jammed media is present, remove it.
6: Location of paper release guide
Replace the envelope-entrance cover and close tray 1.
Reinstall the print cartridge and close the top cover.
If a jam message persists, jammed media is still in the device. Look for the jam in another location.
Clear jams from the optional envelope-feeder area
Remove any envelopes that are loaded in the envelope feeder. Lower the envelope weight and lift the tray extension up, to the closed position.
7: Location of envelope weight and tray extension
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 device.
8: Location of release button
Slowly remove any jammed envelopes from the optional envelope feeder and from the device.
Insert the optional envelope feeder into the device until it locks into place. Pull gently on the optional envelope feeder to be sure that it is securely in place.
Fold down the envelope-feeder tray. Lift the envelope weight.
Reload the envelopes, making sure that you push the bottom envelopes in slightly farther than the top envelopes.
If a jam message persists, jammed media is still in the device. Look for the jam in another location.
Clear jams from the tray 1 area
Open the top cover, open tray 1, and remove the print cartridge.
Use the green handle to lift the paper-access plate.
Slowly pull any jammed media out of the device. Do not tear the media. If part of the sheet has already been pulled into the device, follow the steps for Clear jams from the top-cover and print-cartridge areas.
If jammed media is difficult to remove, remove the envelope-entrance cover. If media is present, remove it.
9: Location of envelope-entrance cover
Rotate the paper-release guide to check for additional jammed media underneath. If jammed media is present, remove it.
10: Location of paper-release guide
Replace the envelope-entrance cover and close tray 1.
Reinstall the print cartridge and close the top cover.
If a jam message persists, jammed media is still in the device. Look for the jam in another location.
Clear jams from the tray 2, 3, 4, or 5 areas (optional 500-sheet feeders)
Pull the jam-access lever to open the jam-access cover.
11: Location of jam-access cover
Carefully pull out any jammed media from either the top or the bottom of the jam-access area.
12: Location of jammed media
Use an upward or downward pulling motion to avoid tearing the media and to prevent toner from falling into the device.
Close the jam-access cover.
Slide the tray completely out of the device, and remove any damaged media from the tray.
13: Location of tray
Slide the tray into the device.
If a jam message persists, jammed media is still in the device. Look for the jam in another location.
Clear jams from the optional duplexer
Remove the output bin (or remove the stapler/stacker or the mailbox).
14: Location of output bin/stapler/stacker
Remove the optional duplexer.
15: Location of optional duplexer
Check for jammed paper in the optional duplexer. Carefully pull out the jammed paper.
16: Location of jammed paper in duplexer
Set the duplexer aside.
Check for jammed paper inside the device. Carefully pull out the jammed paper.
17: Location of jammed media in print engine
Reinstall the duplexer.
Reinstall the output bin (or reinstall the 3-bin mailbox or the stapler/stacker).
If a jam message persists, jammed media is still in the device. Look for the jam in another location.
Clear jams from the output bin, 3-bin mailbox, or stapler/stacker
If using the standard output bin, slide the standard output bin away from the device.
18: Location of output bin
If 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 accessory. Slide the accessory away from the device.
19: Location of release button
If the jammed media is inside the device, carefully pull the jammed media out of the device.
20: Location of jammed media in output path
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.
21: Location of jammed media in 3-bin mailbox or stapler/stacker
If 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.
22: Location of jam-access cover/jammed media location
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 device.
If a jam message persists, jammed media is still in the device. Look for the jam in another location.
Clear jams from the fuser
Turn the device 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 device.
If 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.
23: Location of output-bin assembly
If 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 device.
24: Location of release button
Remove the optional duplexer or the duplex cover.
25: Location of duplexer
If unable to see the jammed media inside the fuser, skip to step 9.
If unable to see either the leading edge or the trailing edge of the jammed media inside the fuser, carefully pull it out.
26: Location of jammed media in fuser
If able to 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.
27: Location of tucked jammed media
If the media tears while removing it, turn the green dial on the fuser, and then carefully pull out the jammed media. Go to step 13.
28: Location of fuser dial
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 device. 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 device.
Open the black cover at the top of the fuser, and remove the jammed media.
29: Location of black fuser cover
Reinstall the fuser. Push on the fuser with your thumbs to be sure it snaps securely into place.
30: Location of fuser
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.
31: Location of fuser-entrance guide
Reinstall the duplexer or the duplex cover.
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 device.
If a jam message persists, jammed media is still in the device. Look for the jam in another location.
Clear jams from the document feeder
Lift the document-feeder input tray, and check for jammed media underneath the tray. Carefully remove any jammed media.
32: Location of jammed media in document-feeder input tray
Pull up on the document-feeder-cover-release lever, and open the document feeder cover. Carefully remove any jammed media.
33: Location of document-feeder-cover
Lift the green jam lever on the document guide, and then check for jammed media. Carefully remove any jammed media.
34: Location of green jam lever on document guide
Close the document feeder cover.
If a jam message persists, jammed media is still in the device. Look for the jam in another location.
Solve 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 device might be dirty. Clean the device.
Check that all damaged or jammed media is removed from device.
Repeated jams in the document feeder
The document feeder might be dirty. Clean the document feeder.
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 75g/m2 (20lb) bond paper are loaded in the document feeder.
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 document feeder. If the leading edge of the document is excessively worn or frayed, try rotating the document 180 degrees before copying.
If jams continue, contact an HP-authorized service provider or go to http://www.hp.com/support/ljm4345mfp .)
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.
Scroll to and touch Administration.
Scroll to and touch Troubleshooting.
Scroll to and touch Paper Path Test.
Touch Print Test Page.
