Clear carriage jam

Have you tried moving the carriage to see if it really is jammed? Maybe you haven't put the levers down properly on your new cartridges....remove them, see if the carriage slides, then refit them and check the carriage again. You wont visually 'see' a carriage jam,; you have to try moving it. By the way, if it doesn't move, DONT force it to try and overcome the jam try and reason out why it doesn't move.
Hope this helps!
nicam49

I think the message is instructions, as in
(1) open door (2) clear carriage jam (3) press enter
So there is something internal to the printer that makes it think it has a carriage jam, piece of paper under a sensor, dirty or stuck sensor.
If you can't find it using a bright light, try canned air.

HP Officejet 7200, 7300, and 7400 Series - 'Paper Jam: Clear jam, and then press Enter' Message Displays on the Control Panel Display
Issue
During printing, the paper becomes stuck in the all-in-one and the error message 'Paper Jam: Clear jam, and then press Enter' displays on the control panel display.
Solution
Use the following instructions to clear a paper jam from the product:
Step one: Check for and remove any loose paper from the In tray
Do not try to remove jammed paper from the In tray. First remove any loose paper from the In tray to avoid worsening the jam.
CAUTION: Always try to remove jammed paper from the back of the printer first to avoid mechanical damage.
Step two: Clear the jam from the back of the printer
Follow these instructions to clear jammed paper from the back of the product. If the product is equipped with a two-sided printing accessory, skip to that section.
Remove the rear access door to clear the paper jam

1. Remove the rear access door by pressing the buttons on the side of the door and pulling it toward you.
Figure 1: Removing the rear access door
Rear access door
2. Gently pull the jammed paper out of the rollers.
WARNING: 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 all the pieces of paper are not removed from the product, more paper jams might occur.
3. Replace the rear access door. Gently push the door into the all-in-one until it snaps firmly into place.

Remove the two-sided printing accessory to clear the paper jam

1. Remove the two-sided printing accessory by pressing in the buttons on the sides and then pulling the accessory toward you.
Figure 2: Removing the two-sided printing accessory
2. Gently remove any jammed paper.
WARNING: 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 accessory. If all the pieces of paper are not removed from the accessory, more paper jams might occur.
3. Press the button on top of the two-sided printing accessory to open the door.
Figure 3: Opening the two-sided printing accessory door
4. Gently pull the jammed paper out of the rollers.
5. Close the accessory door.
6. Reinstall the two-sided printing accessory.

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

1. Remove the document feeder tray from the product by gently pulling it.
2. Lift the cover of the automatic document feeder by pulling it outward.
Figure 4: Lifting the cover of the automatic document feeder
Automatic document feeder (ADF) door
3. Gently pull the jammed paper out of the rollers.
WARNING: In the rare occurrence of a severe paper jam, you might need to remove the face plate from the front of the automatic document feeder and lift the pick assembly to remove torn pieces of paper from deep inside the automatic document feeder.
4. Close the cover of the automatic document feeder, and then reattach the document feeder tray.

Step four: Verify that the print carriage can move freely
Follow these steps to try to move the print carriage.
CAUTION: Do not force the print carriage to move if it is out of plain view or feels stuck. Forcing it may damage the printer.

1. With the product turned on, open the print cartridge access door. The print carriage might try to move into the access area. If so, allow it to move to that position.
2. Without turning off the product, unplug the power cord from the back of the product. Unplug the power cord from the power source. The power cord must be unplugged to allow the parts to be moved by hand and to reset the paper feed mechanism, without the risk of an electrical shock.
3. Looking in through either the print cartridge access door or the output paper tray, make sure the print cartridges are locked into the carriage and have not come loose. Also, make sure that there are no obstructions under or around the carriage to block it from moving.
4. Make sure the print carriage can move freely across the width of the product by gently pushing the carriage to the left and then to the right. Clear any obstructions found.
You may have to reach through the output paper tray to access the print carriage.
5. Close the print cartridge access door and plug the power cord back to the back of the product. Plug the power cord into the power source.
6. Press the On button to turn on the product.

Step five: Reload and test the printer
After you have removed the jammed paper, make sure the product is still functioning properly.

1. Reload the product with plain paper.
2. Peform a self-test by pressing and holding the RESUME button on the control panel until the product begins printing. A test page prints.

Step six: Service the printer
If you have completed all the steps listed above and are still experiencing a problem, service the product.

Issue The error ' Open Door, Clear Carriage Jam, and then Press Enter ' displays on the product. The following symptoms might also accompany this error:
* The product will not print. * Printing stops unexpectedly. * The carriage does not move.
Try the following solutions in the order presented to resolve the issue. When one of the solutions resolves the issue, there is no need to continue troubleshooting. Solution one: Turn the All-in-One off and on again
1. Press the Power button ( ) to turn off the product. 2. Press the Power button ( ) to turn the product on again.
* If these steps resolved the issue , you do not need to continue troubleshooting. * If the issue persists , continue to the next solution.
Solution two: Clear any paper jam A carriage jam might follow a paper jam. Follow these steps to check for and remove any jammed paper. Step one: Check for and remove any loose paper from the input tray Remove any loose paper from the input tray, the output tray, and the automatic document feeder (ADF). CAUTION: Do not remove jammed paper at this stage. Step two: Clear a paper jam from the rear access door WARNING: Always clear paper jams through the back door if possible. To avoid tearing the paper and damaging the print mechanism, pull paper from the printer slowly and gently. Avoid touching the internal components of the printer.
1. Disconnect the power cord from the back of the printer. 2. Remove the back door and remove as much jammed paper as possible.
3.Replace the back door and open the carriage access door. If there is paper visible that cannot be removed through the back door, gently pull it out from the front.
4. Reconnect the power cord and close the printer.
* If these steps resolved the issue , you do not need to continue troubleshooting. * If the issue persists , continue to the next solution.
Solution three: Make sure that the carriage moves freely
1. With the product turned on, open the cartridge access door. The carriage might try to move into the access area. If so, allow it to move to that position. 2. Without turning off the product, unplug the power cord from the back of the product. WARNING: You must disconnect the power cord to move parts by hand without the risk of an electrical shock. 3. Look in through either the cartridge access door or the output paper tray to make sure that the cartridges are secure in the carriage and not loose. Also, make sure that there are no obstructions under or around the carriage to block it from moving. 4. Make sure the carriage can move freely across the width of the product by gently pushing the carriage to the left and then to the right. Clear any obstructions found. You might have to reach through the output paper tray to access the carriage. 5. Close the cartridge access door and reconnect the power cord to the product. 6. Press the Power button ( ) to turn on the product.
* If these steps resolved the issue , you do not need to continue troubleshooting. * If the issue persists , continue to the next solution.
Solution four: Remove and reinsert the print cartridges Incorrect installation of the print cartridges can cause the product to show a false carriage jam. Follow these steps to remove, and then reinstall the print cartridges. Step one: Remove the print cartridges
1. Press the Power button ( ) to turn off the product. 2. Open the front of the product to access the carriage. The carriage moves to the center of the product.
3. Unlatch the two print cartridge latches, and then raise the latches. 4. Remove the print cartridges.
Step two: Reinsert the print cartridges
1. One at a time, hold a print cartridge with the printed label up, and then slide the print cartridge into its slot. Repeat this step for the other print cartridge.
# NOTE: Insert the black print cartridge into the slot with the gray latch, and insert the color cartridge into the slot with the blue latch. # Grasp the end of the latch on the cartridge slot with your thumb, and then pull the end of the latch toward you. While holding the latch, press down on the top of the latch until it stops, and then release the end of the latch so that it catches under the tabs. CAUTION: To avoid damaging the product, do not force the latches into place.

3. Close the product cover. A message displays on the control panel to align the print cartridges. 4. Press the Enter button to begin the cartridge alignment. Two pages print. Follow the instructions printed on the second page to complete the alignment. 5. Try the print job again.
* If these steps resolved the issue , you do not need to continue troubleshooting. * If the issue persists , continue to the next solution.

yes, that is a carriage jam and not paper, the grinding is from the clean station that gets blocked with dried ink and cant move. you need to open the printer and clean the ink off of the clean station so it can clean properly and not cause a carriage jam.

how to open hp Officejet 5110 all in one printer

remove the cartridge and directly off the printer let the carriage remain in center.then with your hand manually move the carriage from left to right.3 to 4 times.then on the printer and insert the cartridge after cleaning it with dry tissue.then check out.also in the back side of the printer there is access door to remove the paper if jammed so check out there also if any paper jammed.
thanks.

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Make sure you can move the print cartridge holder freely and that it isn't being blocked by anything inside the printer, also check if the cleaning station is in the right position, maybe it is locking the cartridges.

I have an Hp Officejet 5110. I have an error message saying "Open door,clear carriage jam, then press enter". But where is its door? How can I clear the carriage jam?

I tried pressing the # & 6 at the same time, but the error message still there.