HP Customer Support - Knowledge Base







A 'Paper Jam' Message Displays for HP 1240 and 1250 Faxes


The product does not print or stops feeding pages when printing. A 'Paper Jam' message displays on the product.
Paper jams can be real or false. The product might report a paper jam even when there is no jammed paper. The following solution applies to both real and false paper jams.


Follow these steps to clear a paper jam from the product. It might not be necessary to complete all the steps.

Step one: Remove any loose paper

Remove any loose paper from the input tray, the output tray, and the automatic document feeder (ADF).
Do not remove jammed paper at this stage.

Step two: Clear the jam from the back of the Fax

  1. Press the Power button () to turn off the product, and then turn it around to access the back of the product.
  2. Disconnect the power cord from the back of the product.
  3. Remove the rear access door by pressing in on the left side tab and then pulling the door toward you.
    If the door is difficult to remove, check the bottom of the product for any remaining shipping tape that might be preventing removal.
    Figure : Remove rear access door
  4. From the rear access door opening, remove the jammed paper.
    If the paper tears while removing it from the rollers, check the rollers and wheels for torn pieces of paper that might remain inside the product. If any torn pieces of paper remain inside the product, more paper jams are likely to occur.
Clearing a jam from the back is the preferred way to clear a paper jam, because it minimizes the possibility of damage to the print mechanism. However, if a page is almost all the way through the product, you might need to pull it gently from the front.

Step three: Clean the rollers

Before reattaching the rear door, follow these steps to clean the paper rollers to remove any debris, dirt, or paper scraps.
  1. Wipe the pressure rollers on the rear access door with a lint-free cloth lightly moistened with distilled or bottled water. Rotate the rollers with your fingers to clean all the way around.
  2. Allow the rollers to dry completely.
  3. Replace the rear access door. Align the pegs on the right side of the door, and then push the door forward until it snaps into place.

Step four: Clear the jam from the automatic document feeder (ADF)

Follow these steps to check for and clear any jam from the ADF. To prevent ADF jams, do not load more than 20 sheets in the automatic document feeder. Also, do not try to add originals to the document feeder tray while the product is copying or sending a fax.
  1. Disconnect the power cord from the product.
  2. Grasp the upper edge of the ADF assembly and open it.
    Figure : Open the ADF
  3. Gently remove any jammed paper from the ADF.
  4. Close the ADF assembly.
  5. Reconnect the power cord to the product, and then press the Power button () to turn it on.

Step five: Check for packing material

There might be some packing material inside the product. Lift open the cartridge access door to expose the ink cartridges. Remove any packing material or other items that do not belong there, and then close the access door.
Figure : Open cartridge access door

Step six: Reload paper

  1. Slide the paper-width guide to its outermost position.
  2. Tap the paper stack on a flat surface to align the edges of the paper. Make sure that all the paper in the stack is the same size and type.
  3. Insert the short edge of the paper into the paper tray, print-side down, until it stops.
    To avoid bending the paper, do not push it in too far or too hard.
  4. Slide the paper guide inward until it stops at the edge of the paper. Make sure the paper stack lies flat in the paper tray and fits under the tab of the paper guide.

Step seven: Check the paper tray extender

Only unfold the paper tray extender if you are printing in Draft or Fast mode, and the paper is overshooting the paper tray. The paper tray extender might cause jams in other cases.
Figure : Paper tray extender

Step eight: Service the Fax

Service or replace your HP product if the issue persists after completing all the preceding steps.
Go to Contact HP Customer Support to schedule a product repair or replacement. If you are in Asia Pacific, you will be directed to a local service center in your area.
To confirm your warranty status, go to HP Product Warranty Check. Repair fees might apply for out-of-warranty products.


The following factors can cause paper jams:
  • Torn, curled, or wrinkled paper
  • Too much paper in the output tray
  • More than 20 sheets of paper in the ADF
  • Paper loaded incorrectly
  • Mixed paper types or sizes in the ADF or paper tray
  • Recycled paper
  • Improperly installed rear access door
  • Debris on paper feed rollers
  • Paper that is too thick or thin for the product






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