HP LaserJet 2420

How to Identify and Fix Common Problems ?

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Dust, paper fiber, and other debris might accumulate on the paper feed rollers and cause paper jams and paper feed issues. Clean the rollers inside the printer, and then try to print again.
Paper jams can occur for a variety of reasons, such as overloading the paper tray, loading different thicknesses of paper in the tray, or using paper that isn`t appropriate for your particular printer. False paper jams can also occur.
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 your printer won`t print, a print job has stopped unexpectedly, or you received a “carriage jam” error, your printer carriage is likely jammed. These jams occur when the carriage holding the ink cartridges stalls in the printer. Carriage jams sometimes occur after a paper jam.
If your printer keeps jamming, you should know that the most common cause of a jam is misalignment of the paper. Paper needs to load in smoothly, completely flush with the tray. Overfilling the tray is a great way to ensure you will be spending some personal time getting to know the inside of a printer.
Slide the paper all the way into the printer. The leading edge of the paper will stop at the Paper Drive Roller. Locate the Paper Sensor/OOPs sensor on the right side of the paper path. It can be seen from the top of the printer with the Top Cover open and has red, black, and blue wires attached to it.
Paper curl is caused by an excess amount of moisture in the paper. The first step to ensure less paper curl is to store your paper in a cool, dry area. By doing so, you will reduce the amount of moisture and humidity the paper is exposed to. The next step is to always fan the paper before placing in the machine.
Low-quality paper leaves an accumulation of tiny paper bits often referred to as “paper dust” inside the machine. This “dust” is one of the top causes of paper jams. More dust means more jams. Besides jams, the dust also contributes to poor-quality prints and causes machine parts to wear at a faster rate.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

hp 8600 pro when power on, paper jam message appear but there is no paper jam in the tray
ANSWER : Hp 8180 Photosmart All In One code keeps says paper jam and carriage jam when neither are jammed. I followed all the recommended things to do. I live in Raleigh NC any place to take this or any suggestion.

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HP LaserJet 2420

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 LaserJet 2420

Paper Jam and carriage jam code when nothing is jammed
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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HP LaserJet 2420

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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HP LaserJet 2420

HP LaserJet 4200 paper jam fix
ANSWER : Yes, thank you! You did a thorough post! If your still hacking away at HP’printers you will know that unfortunately HP kept using that type of solenoid with the “Sticky Mess” on all of their new Equipment. I use this method almost everyday (without removing the actual solenoid). I’ve replaced so many I got carried away and now, I sell a solenoid repair kit! It’s for those people that like convenience. I provide a professional supply of perfect material with sticky back tape pre-cut to exact dimensions! All in a little kit. I have install videos, (I don’t charge for that I believe in the Do-it -Yourself approach.) Sorry for the sales pitch… but here is my link.

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HP LaserJet 2420

Canon mx410 Paper jam message, but no paper jam?!
ANSWER : I have exactly the same problem, no answers 😳

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HP LaserJet 2420

HP LaserJet 1020 paper jam on output/exit
ANSWER : Good afternoon, I have a Laserjet 1020 with the same problem, when the paper comes out, it remains a last centimeter in the last needle and the orange LED flashes.You can confirm that this is the pressure roller that presses on the fuser? MAYBE IT’S TOO HARD TO TURN?

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HP LaserJet 2420

HP Officejet Pro 8500 Wireless with fake paper jam
ANSWER : HP Officejet is by far one of the frustrating piece of equipment I have ever owned. I bought it as unused in the package, at that point no warranty left. less than 6 months and 500 pages the white cog gear wheel broke. Luckily with instructions in this site I manage to glue it back together. Then I bought new ink – problems started as they were not original HP 30$ per cartridge. Ordered originals (here in China), took over one week to get them. Then found out that printhead needed to be replaced => more than 100$ spent. Still constant problems: If my wife kids print, I need to be stand-by as you never know what happens. Really an Office level equipment. After cleaning one paper jam I broke the encoder tape, took me another 4 hours to get it fixed. Then broke the cog gear again and got it displaced. Another 4 hours. Only reason I am not throwing this s***t out of window is that there are still ink left. Luckily this drinks them like a horse, for sure I will no more buy new ink. I will get a new laser instead, and not from HP. About cog wheel fixing: make sure that the white wheel is positioned correctly so that the small torx in shaft goes into the slit in the white wheel. When fitting the black cover back, make sure that the white washers on both sides fit into to slits of the black cover. Good luck.

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HP LaserJet 2420