Automatic paper feed does not feed paper. Printer will only print from glass screen. This problem occurred after a jam was cleared. Rollers were cleaned thoroughly, but this didn't help. It seems like the rollers are just not functioning at all. Could they be dislodged? Or perhaps something inside the rollercage was damaged by the jam? I can not get inside the roller cage to inspect.

Make sure everything is clean. Please refer to your manual for cleaning instructions; or download a new manual at http://www.okidata.com/ .

Below are how to clear a jam instructions:
How to remove jammed paper 28/07/2013
Paper handling is key to Ensure trouble-free printing. However, paper jams sometime Occur.
You can improve feeding and Avoid paper jams in your OKI printer, by following these simple steps:
Loading the Paper: When loading paper, fan the stack of paper before placing it in the tray. This will shake out any paper dust and reduce any static in the paper, two major causes of paper mis-feeds.
- Place the paper in the tray under the tabs.
- Do not fill above the "PAPER FULL" mark.
- Guides Adjust the tray for the correct paper size.
Recommended Media: Use paper specified for the printer
When printing on heavy / thick types of paper, it is best to use the manual feed tray at the front of the printer.This will Provide a straighter paper path to Prevent potential paper jams.
Cleaning: Periodically wipe the rubber rollers inside the area That holds the paper tray with a soft cloth.
dust Paper and simple wear may cause these rubber rollers to slip and not feed the paper properly.

Turn off the printer, then unplug it from the power source. Clear the
printer of any paper that may be obstructing the paper path. Remove the rearaccess door. Gently remove the jammed paper from the printer, then replace therear access door.
Remove the rear access door to clear paper jams.If you cannot remove all jammed paper from the rear area of the printer, tryremoving paper jammed in the middle of the printer by opening the paper jamdoor located inside the top cover.
Open the paper jam door to clear paper jams in the middle of the printer.Plug the printer back in and turn it on.
In case of any doubt go to the following link and act accordingly
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00386753&lc=en&dlc=tr&cc=us&product=443024

Paper stuck inside the HP All-in-One can cause jams or also sometimes there are some instruction that get stuck in the printer internal mechanism .
Power off the printer , unplug the power cable. Wait for 30 sec. , Replug the power cable. Power on the printer.
Check for a stuck paper or torn bits of paper.
Clear jam from the back of all-in-one
Press in the tab on the left side of the rear door to release the door. Remove the door by pulling it away from the HP All-in-One.Trying to clear a paper jam from the front of the HP All-in-One can damage the print mechanism. Always access and clear paper jams through the rear door.
Gently pull the paper out of the rollers.If the paper tears when you are removing it from the rollers, check the rollers and wheels for torn pieces of paper that might be remaining inside the device. If you do not remove all the pieces of paper from the HP All-in-One, more paper jams are likely to occur.
Replace the rear door. Gently push the door forward until it snaps into place.
Press OK to continue the current job.
Clear the jam from the automatic document feeder (ADF)
Paper can also jam in the automatic document feeder. Follow the steps below to clear a paper jam in the automatic document feeder(ADF)
Lift the cover of the automatic document feeder.
Gently pull the paper out of the rollers.
Reload and test the all-in-one
Once you have removed the jammed paper, verify that the all-in-one is still functioning properly.
Reload the all-in-one with either plain or photo paper.
Print a page from a memory card or the computer.
If you have completed all the steps listed above and are still experiencing a problem contact HP to service the product.

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.

sounds Like a paper jam , Plus your paper feed rollers are dirty, clear any paper inside the printer, the using a cloth rag and some 409 cleaner , wipe feed rollers to remove white paper dust on rollers, and let dry, then add paper to printer and it should print.

Most of the Lexmark printers (including the Z- and X- series) pull the paper down on one side slightly faster than the other. The printer hardware should even this out when printing. You should also ensure the paper meets the automatic feeder requirements of the printer.

If printing is skewed, feeding multiple pages or jamming, please follow these instructions (use a regular letter size paper to test after doing the steps given below):

Please check to ensure there is nothing obstructing the paper feed mechanism down inside the printer where it is not easily seen. If there is nothing obvious, unplug the printer and remove the paper. Open the front cover and look above the steel rod. You should see a conveyor belt with rubber teeth on it, like a fan belt. Take the bottom part of that belt and move it gently to the left. The cartridges should come out with it. Make sure the cartridges can move fully from one side of the printer to the other. Check also the output rollers on the bottom of the printer for any blockage. If it is jamming under the carrier assembly, you may be able to fix it using the manual feed slot. Turn the printer off. Next take a #10 envelope and feed it through the left side of the paper feed slot (The manual paper feed slot is preferred, but the automatic feed will do if there is no manual paper feed for this printer) until it comes completely through the printer to the back of the exit rollers. Move it up and down and slowly move it over to the right side. If something is stuck under the black guide plate this may work it loose or you may have to feed the envelope through the front rollers and push your way backward (please be careful here).

Next, take a damp warm cloth and clean the rubber rollers in the automatic sheet feeder. Dust may be coating the rollers there and as they become less tacky, they cannot feed paper correctly.

Then plug the printer back up, take your paper out and replace it with a fresh, small stack (about 5 pages) of paper. Quickly bend the stack in an 'S' shape a few times to separate pages. Make sure it is lined up on the right side of the paper feed and the paper guide on the left is snug on the left side of the paper. Then try to form feed again. If that works, then try to print the self test page.

Please follow the steps given below to perform the self-test:

1. Make sure the printer is in “Copy Mode.”
2. Press the “Menu” button once.
3. The screen will display “Copy Menu: Copies”.
4. Press the left arrow button once. The screen will display “Copy Menu: Tools”.
5. Press the check button once. The screen with read “Tools: Maintenance”.
6. Press the check button once. The screen with read “Maintenance: Ink Levels”.
7. Press the right arrow button until the screen reads “Maintenance: Print Test Page”.
8. Press the check button once. This will start the Self-Test. Once the page has printed, the printer will stop. The test is not continuous.

The self-test should at least print out a set of either a solid black or solid color bars, if not both (if you have a printer with both color and black installed simultaneously). Should this test fail, please try it again without cartridges installed. If the self-test still fails to take paper in and make sounds like the carrier is moving across the paper, this is a hardware issue, and the printer will require service. If the self-test completes without any cartridges installed, run the self-test again with only a color cartridge installed (If you have both black and color cartridges, after this test, run the test again with just the black cartridge installed). If you find that either cartridge causes the self-test to fail, please let us know.

If the self-test prints, but has lines or smudges or other print quality issues, please let us know. This includes any print quality issues - we need to know if the problems you have with your black or color are based in the printer, or communications with your computer, or the computer's software.

If the self-test prints your test bar(s) clearly, the printer hardware is not at fault.

Most of the Lexmark printers (including the Z- and X- series) pull the paper down on one side slightly faster than the other. The printer hardware should even this out when printing. You should also ensure the paper meets the automatic feeder requirements of the printer.

If printing is skewed, feeding multiple pages or jamming, please follow these instructions (use a regular letter size paper to test after doing the steps given below):

Please check to ensure there is nothing obstructing the paper feed mechanism down inside the printer where it is not easily seen. If there is nothing obvious, unplug the printer and remove the paper. Open the front cover and look above the steel rod. You should see a conveyor belt with rubber teeth on it, like a fan belt. Take the bottom part of that belt and move it gently to the left. The cartridges should come out with it. Make sure the cartridges can move fully from one side of the printer to the other. Check also the output rollers on the bottom of the printer for any blockage. If it is jamming under the carrier assembly, you may be able to fix it using the manual feed slot. Turn the printer off. Next take a #10 envelope and feed it through the left side of the paper feed slot (The manual paper feed slot is preferred, but the automatic feed will do if there is no manual paper feed for this printer) until it comes completely through the printer to the back of the exit rollers. Move it up and down and slowly move it over to the right side. If something is stuck under the black guide plate this may work it loose or you may have to feed the envelope through the front rollers and push your way backward (please be careful here).

Next, take a damp warm cloth and clean the rubber rollers in the automatic sheet feeder. Dust may be coating the rollers there and as they become less tacky, they cannot feed paper correctly.
Then plug the printer back up, take your paper out and replace it with a fresh, small stack (about 5 pages) of paper. Quickly bend the stack in an 'S' shape a few times to separate pages. Make sure it is lined up on the right side of the paper feed and the paper guide on the left is snug on the left side of the paper. Then try to form feed again. If that works, then try to print the self test page.

Please follow the steps given below to perform the self-test:

1. Press the "Copy" button once.
2. Press the "Options" button 11 times until the screen reads "Maintenance."
3. Press the "Left Arrow(-)" button until the screen reads "Maintenance: Self Test."
4. Press "Select."

The self-test should at least print out a set of either black or color bars, if not both (if you have a printer with both color and black installed simultaneously). If the self-test still fails to take paper in and make sounds like the carrier is moving across the paper, this is a hardware issue, and the printer will require service. If the self-test completes without any cartridges installed, run the self-test again with the color cartridge installed. (If you have both black and color cartridges, after this test, run the test again with just the black cartridge installed.) If you find that either cartridge causes the self-test to fail, please let us know.

If the self-test prints, but has lines or smudges or other print quality issues, please let us know. This includes any print quality issues, we need to know if the problems you have with your black or color are based in the printer, or communications with your computer, or the computer's software.
If the self-test prints your test bar(s) clearly, the printer hardware is not at fault.

1. Turn the printer off and open the access cover.
2. Look for any obstructions in the paper path and remove them if necessary. (It is possible to move the carrier assembly with the power off.)
3. Turn the printer on, load some paper, and press the Form Feed button.
4. Watch the paper as it feeds through and try to determine where the jam is occurring.
5. Check to see if all the rollers are turning.

If all the rollers are turning, there may be something in the feed path that you can't see. Go to step 6.
If not, there is probably a feed motor or a gear problem and the printer may require service.
6. If the paper is jamming under the carrier assembly, you may be able to fix it using the manual feed slot.
7. Turn the printer off.
8. Take a #10 envelope and feed it through the left side of the manual feed slot until it comes right through the printer to the back of the exit rollers.
9. Move it up and down first, and then slowly move it over to the right side. If something is stuck under the black guide plate, this may work it loose.

1. Turn the printer off and open the access cover.
2. Look for any obstructions in the paper path and remove them if necessary. (It is possible to move the carrier assembly with the power off.)
3. Turn the printer on, load some paper, and press the Form Feed button.
4. Watch the paper as it feeds through and try to determine where the jam is occurring.
5. Check to see if all the rollers are turning.

If all the rollers are turning, there may be something in the feed path that you can't see. Go to step 6.
If not, there is probably a feed motor or a gear problem and the printer may require service.
6. If the paper is jamming under the carrier assembly, you may be able to fix it using the manual feed slot.
7. Turn the printer off.
8. Take a #10 envelope and feed it through the left side of the manual feed slot until it comes right through the printer to the back of the exit rollers.
9. Move it up and down first, and then slowly move it over to the right side. If something is stuck under the black guide plate, this may work it loose.

The samsung printer have three paper jam sensors. First (paper jam 0) after the feed rollers. Second (paper jam 1) at the left of the feed rollers and third (paper jam 2) at the fuser unit where it is hot. You can see the actuator between the two white rollers. Paper jam 2 is mainly cause by the scrappers out of position on the side of the upper heat rollers.You will have to clean it and put it back into position.