Print | Rate this content

HP LaserJet 4250 and 4350 Series Printers - Clearing Paper Jams

If a jam message appears on the printer control-panel display, look for jammed paper or other print media in the locations that are indicated in the figure below. Then see the procedure for clearing the jam. You might need to look for media in other locations 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.

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

Jam locations

product illustration
1
Top-cover and print-cartridge areas
2
Optional envelope feeder
3
Tray areas (tray 1, tray 2, and optional trays)
4
Optional duplexer
5
Fuser area
6
Output areas (top bin, rear bin, and optional stacker or stapler/stacker)
Loose toner might remain in the printer after a jam and cause temporary print-quality problems. These problems should 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.

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

    procedure illustration
  3. Slowly pull the jammed media out of the printer. Do not tear the media. If media is difficult to remove, try clearing it from the tray area.

    procedure illustration
    Avoid spilling loose toner. Using a dry, lint-free cloth, clean any loose toner that might have fallen into the printer. If loose toner falls into the printer, it might cause temporary problems with print quality. Loose toner should clear from the printer after a few pages are printed. If toner gets on your clothing, wipe it off with a dry cloth and wash clothing in cold water. (Hot water sets toner into fabric.)
  4. Open tray 1 and remove the entrance cover. If media is present, remove it.

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

    procedure illustration
  6. Replace the entrance cover and close tray 1.

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

    procedure illustration
  8. If a jam message persists, jammed media is still in the printer. Look for the jam in another location. (See Jam locations .)

If you are using a non-HP print cartridge, the message NON HP SUPPLY INSTALLED might appear on the printer control panel display. Press (Select button) to continue.

Clearing jams from the optional envelope feeder

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 optional 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 printer.

    procedure illustration
  3. Slowly remove any jammed envelopes from the optional envelope feeder and the printer.

    procedure illustration
  4. Insert the optional envelope feeder into the printer until it locks into place. (The connector on the top, right side of the optional envelope feeder fits into the plug in the printer.) Pull gently on the optional envelope feeder to be sure that it is securely in place.

    procedure illustration
  5. Press (Select button) to clear the jam message.

  6. If a jam message persists, an envelope is still jammed in the printer. Look for the jam in another location. (See Jam locations .)

  7. Reload the envelopes, making sure that you push the bottom envelopes in slightly further than the top envelopes.

Clearing jams from the trays

This section describes how to clear jams from the trays.

To clear jams from tray 1

Slowly pull the jammed paper or other print media out of the printer.

To clear jams from tray 2 or an optional 500-sheet tray

  1. Slide the tray out of the printer, lift it slightly, and remove any damaged media from the tray.

  2. If the edge of the jammed media is visible in the feed area, slowly pull the media down and out of the printer. (Do not pull the media straight out, or it will tear.) If the media is not visible, look in the next tray or in the top-cover area.

    procedure illustration
    Do not force the media if it will not move easily. If the media is stuck in a tray, try removing it through the tray above (if applicable) or through the top-cover area.
  3. Make sure that the media is flat in the tray at all four corners and below the maximum-height indicators.

    procedure illustration
  4. Slide the tray back into the printer.

    procedure illustration
  5. Press (Select button) to clear the jam message.

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

To clear jams from the optional 1,500-sheet tray

  1. Open the front door of the tray.

    procedure illustration
  2. If the edge of the jammed paper is visible in the feed area, slowly pull the paper down and out of the printer. (Do not pull the paper straight out, or it will tear.) If the paper is not visible, look in the top-cover area.

    procedure illustration
  3. Make sure that the paper does not exceed the fill marks on the paper guides, and that the front edge of the stack is aligned with the arrows.

    procedure illustration
  4. Close the front door of the tray.

    procedure illustration
  5. Press (Select button) to clear the jam message.

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

Clearing jams from the optional duplexer

If you are duplexing a print job and experience a jam, use this procedure to check for the jam and to clear it.

To clear jams from the optional duplexer

  1. Lift the optional duplexer up and then pull it out to remove it.

    procedure illustration
  2. Remove any paper that is on top of tray 2. (You might need to reach inside the printer.)

    procedure illustration
  3. Slowly pull any paper out of the optional duplexer.

    procedure illustration
  4. Insert the optional duplexer into the printer.

    procedure illustration
  5. If a jam message persists, a sheet is still jammed in the printer. Look for jam in another location.

Clearing jams from the output areas

Use the procedures in this section to clear jams that occur in the rear output bin or in the optional stacker or stapler/stacker.

To clear jams from the rear output bin

  1. Open the rear output bin. If most of the media is still inside the printer, it might be easier to remove it through the top-cover area.

  2. Grasp both sides of the media, and slowly pull the media out of the printer. (Loose toner might be on the sheet. Be careful not to spill it on yourself or into the printer.)

    procedure illustration
    If the jammed media is difficult to remove, try opening the top cover all the way to release pressure on the paper. If the sheet has torn, or if you still cannot remove it, see Clearing jams from the fuser area .
  3. Close the rear output bin.

    procedure illustration
  4. Open and close the top cover to clear the jam message.

    procedure illustration
  5. If a jam message persists, a sheet is still jammed in the printer. Look for the jam in another location. (See Jam locations .)

Clearing jams from the fuser area

Use this procedure only in these situations:

  • Media has jammed inside the fuser and cannot be removed from the top-cover area or the rear-output area.

  • A sheet of media has torn while you were trying to clear a jam from the fuser.

To clear jams from the fuser area

  1. Turn the printer power off and unplug the power cord from the printer.

    procedure illustration
    The fuser is very hot. To avoid minor burns, wait 30 minutes for the fuser to cool before removing it from the printer.
  2. Turn the printer so that its rear cover faces you. If it is installed, remove the optional duplexer by lifting it up and then pulling it out.

    procedure illustration
  3. Open the rear output bin and pull the extension outward until it stops.

    procedure illustration
  4. Remove the rear output bin and extension by bending the middle of the bin down and releasing the two hinge pins.

    procedure illustration
  5. Firmly grasp each side of the fuser. Push the blue levers upward and pull the fuser straight out of the printer.

    procedure illustration
  6. Remove the jammed media. If necessary, lift the black plastic guide that is located on the top of the fuser to gain access to the jammed sheet. You can also turn the jam-clearing wheel that is located on the side of the fuser to attempt to eject the jammed sheet.

    procedure illustration
    Do not use a sharp object to clear media from the fuser area. You might damage the fuser.
  7. Push the fuser firmly into the printer until the blue levers on both sides click into place.

    procedure illustration
  8. Install the rear output bin. Pull gently on the bin to make sure that the hinge pins are fully inserted.

    procedure illustration
  9. Plug the power cord into the printer.

    procedure illustration
  10. Replace the optional duplexer, if it was removed.

    procedure illustration
  11. Turn the printer power on.

    procedure illustration
  12. If a jam message persists, a sheet is still jammed in the printer. Look for the jam in another location.

After clearing all jams, you need to send the print job again because the printer power has been turned off.

Clearing jams from the optional stacker or stapler/stacker

Paper jams can occur in the optional stacker or the optional stapler/stacker. Staple jams can occur only in the optional stapler/stacker.

To clear paper jams from the optional stacker or stapler/stacker

  1. At the back of the printer, open the door on the stacker or stapler/stacker.

    procedure illustration
  2. Carefully remove any jammed paper.

    procedure illustration
  3. Close the door on the stacker or stapler/stacker.

    procedure illustration
  4. If a jam message persists, a sheet is still jammed. Look for it in another location. Check the front of the accessory and carefully remove any jammed paper.

The output bin must be pushed down into the lowest position for printing to continue.

To clear staple jams from the optional stapler/stacker

Clear staple jams when the message JAM IN STAPLER appears on the printer control-panel display.
  1. On the right side of the stapler/stacker, turn the stapler unit toward the front of the printer until the unit clicks into the open position. Pull outward on the blue staple cartridge to remove it.

    procedure illustration
  2. Rotate the green cover on the end of the staple cartridge upward, and remove the jammed staple.

    procedure illustration
  3. Insert the staple cartridge into the stapler unit, and rotate the stapler unit toward the rear of the printer until the unit snaps into place.

    procedure illustration

The stapler needs to reload after clearing a staple jam, so the first few documents (up to five) might not be stapled. If a print job is sent and the stapler is jammed or is out of staples, the job will still print as long as the path to the stacker bin is not blocked.

Solving repeated jams

If paper jams occur frequently, try the following:

  • Check all the jam locations. A piece of media might be stuck somewhere in the printer. Even a small torn piece of media in the printer path can cause repeated jams.

  • Check that the trays are properly adjusted. The guides should click into place without being too tight against the media.

  • Check that media is correctly loaded in the trays and that the trays are not overfilled. Make sure that the stack is under the tabs and below the maximum-height indicators.

  • Check that all trays and paper-handling accessories are completely inserted into the printer. (If a tray is opened during a print job, this might cause a jam.)

  • Check that all covers and doors are closed. (If a cover or door is opened during a print job, this might cause a jam.)

  • Try printing to a different output bin.

  • The sheets might be sticking together. Try bending the stack to separate each sheet. Do not fan the stack.

  • If you are printing from tray 1, try reducing the size of the stack.

  • If you are printing from the optional envelope feeder, make sure that it is loaded correctly (with the bottom envelopes in slightly farther than the top envelopes).

  • If you are printing small sizes, feed the media with the short-edge first.

  • Turn over the stack of media in the tray. Also try rotating the paper 180 degrees.

  • Check the characteristics of the paper or other print media that you are using. Use only media that meets HP specifications. Try using different media to see if the problem goes away. Do not use curled, deformed, damaged, or irregular media.

  • Check that the environmental conditions for the printer are met.

  • Avoid using paper that has already been used in a printer or copier.

  • Try using paper from a freshly opened ream.

  • Try a different brand of paper.

  • Do not print on both sides of envelopes or transparencies.

  • Print only on full sheets of labels and do not print on both sides of label sheets.

  • Check that the power supplied to the printer is steady and meets printer specifications.

  • Clean the printer.

  • Perform preventive printer maintenance if maintenance is due.

Provide feedback

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