HP Photosmart 6520
I got a paper jam and i cleared out all the paper now i keep getting a message every time i try to print that there is a paper jam but the paper wont make it threw the larger roll to be pushed to the ink. I just stops at the large roller and says a paper jam. I have tried every thing i could possibly find on the internet and even called hp but no help. I want to fix it with out replacing it.

Experienced technical support provide their insights in answering this question :
Obviously you didn’t get all the paper cleared out. There is a small scrap in the paper path causing the jam when the paper hits it. You can try clearing it out by inserting something stiff like a piece of file folder from the back of the printer into the paper path and pushing the offending piece out that way.

How to Identify and Fix Common printer Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

Sometimes a paper jam error persists even though there is no jammed paper (false paper jam). Reset the printer, which might clear a false paper jam error, and then try to print again. With the printer turned on, disconnect the power cord from the printer. Unplug the power cord from the power source.
If the paper is even slightly askew, the rollers will pick it up a little crooked, and — guess what — the crooked sheet will immediately get jammed. So even though there`s no paper stuck when you start printing, the loose paper guides are ensuring that a sheet gets jammed whenever the printer starts doing its thing.
Damaged or dirty paper rollers. Torn, wrinkled, or damp paper loaded in the paper tray. The rear access door or two-sided printing accessory (duplexer) might not be closed or is not locked into place. Paper was added to a stack already in the tray while the HP product was printing.
Do a hard reset on your printer. To do this you just need to turn off your printer, unplug for a few minutes and then plug the printer again. If that still doesn`t work, try turning the printer and your computer off, and then start it back up again. Try uninstalling and then reinstalling your printer driver.
Step one: Perform a power reset

With the product turned on, disconnect the power cord from the rear of the product. Unplug the power cord from the wall outlet. Wait at least 15 seconds. Plug the power cord back into the wall outlet.

If your printer has a paper path cover behind the carriage, remove the cover, and then remove any jammed paper. Pull out the input tray, and then remove any jammed paper. If your printer has a bottom cleanout door, carefully lift the printer and look under it, and then remove any jammed paper from the bottom cleanout.
If your PC or the LCD screen on your printer is telling you that your ink cartridges are full but no ink is passing through to the paper, then it`s most likely that you are dealing with a clogged printhead. Blurry documents and images that appear faded are also signs that it`s time to remove the excess ink.
With the printer turned on, disconnect the power cord from the rear of the printer and also unplug the power cord from the wall outlet. Remove USB cable, if present. Wait for 2-3 minutes, press and hold the power button on your printer for about 30 seconds to remove any additional charge.
During a print job, the ink cartridge carriage stalls in the printer, and a Carriage Jam or E3 error displays on the printer control panel. Perform the following tasks in the order given. Use the printer after each task to see if the issue is resolved.

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My printer feeds through one piece of paper all the way and then a half piece of paper and stops. I pull out the paper to stop the paper jam and then it prints but sounds rough. After printing, it doesn't feed the paper all the way through.
ANSWER : And the first 2 sheets, the full and half sheet that go through first, are blank.

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HP Photosmart 6520

Paper Jam error but no paper jam
ANSWER : Obviously you didn’t get all the paper cleared out. There is a small scrap in the paper path causing the jam when the paper hits it. You can try clearing it out by inserting something stiff like a piece of file folder from the back of the printer into the paper path and pushing the offending piece out that way.

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ANSWER : Did you try cleaning the encoder strip that runs through the cartridge assy.? Use Window Cleaner on a paper towel. Also, check inside on the right. I’ve seen a lot of times where there is a folded up scrap of paper that stops the carriage from going all the way to the right.

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ANSWER : There is a thin plastic arm that the paper pushes on. It is spring loaded. If it doesn’t return and unblock the sensor after the paper passes it, you get the paper jam warning. I’m guessing that is the spring you are referring to.

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