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How To Change Laser Toner Ink Cartridge on HP LaserJet 4250n Printer

Updated on June 17, 2015


If you have an HP LaserJet 4250n printer or even similar computer printers, you will eventually find yourself out of ink. Printing from your computer is simple and easy right up until the point when you run out of toner ink. Then it becomes expensive and a little messy :-)

The article I have written will teach you how to change the laser toner ink cartridge on this Hewlet Packard printer.

Remove and Shake It!

Take the toner ink cartridge from its packaging and give it a few shakes side to side. The ink inside the cartridge is actually dry and powdery. Not a liquid. By shaking it a bit, you will even out and loosen up the toner powder for easy flow into the printer.

Remove the Paper and Plastic Covers From Ink Cartridge

After you remove and shake your printer ink cartridge, you'll notice that there are typically paper and plastic covers on it. These covers keep the ink stable and secure inside the cartridge until ready for use. You will need to remove them before inserting the cartridge into the printer.

For this particular cartridge, you can start by removing the paper covering the front area of the ink cartridge. These is normally a tab or area marked on the cover where you can pull it.

When you do this, use some care, especially if you are wearing a light colored shirt. The ink inside is generally a dry powder and travels easily in the air. If you are too rough when taking off the covers, and if there is some ink on the cover, you could get some on yourself.

Pull any Interior Cover Out as Well

I'm sure there is a more official name for it, but we'll call it the 'interior cover' just because I'm too dumb to know the correct word :-)

Often, the large ink cartridges also have a strip of plastic that runs through the interior. You'll see a tab stick out the side of the ink cartridge. Grab the tab and gently but firmly pull the tab out. Don't pull the tab too hard or you'll risk breaking it. Also be to stand back a bit when you pull it out. If for some reason you are outside or in a windy environment (like a fan blowing) be sure the tab you are pulling out is downwind. Seriously, there probably is some dry ink on this "interior cover." The removal is easy, but it is just a flimsy piece of plastic, if it blows against you, you'll have ink on your clothing for sure.

Open The Cartridge Hatch!

The rest of this is much easier. Go ahead and open the hatch that the old cartridge is in. For the Hewlet Packard HP Laserjet 4250n, be sure to open the top hatch and not the door just below the top hatch. I get fooled by this every time. If you see the old toner cartridge (or a giant empty space if the printer never had a cartridge to begin with) you've got the right place.

Pull Out the Old Ink

Pulling out the old ink is easy to do. Go ahead and grasp it and pull it out in a slightly upward and toward you manner. It should come out no problem.

Put The New Ink In

Then take the cartridge you just removed the packaging from and put it into the printer. Insert it the same way you took the old one out. It should fit in securely and easily.

Close the Ink Door

If you have put the ink in properly, the hatch/door will close very easily. If you find the printer hatch to not be closing fully, you have likely not pushed the ink cartridge down fully.

Once you have closed the door, you'll hear the printer run on its own for a minute, then stop. You should be OK to go at this point.

I Hope That Helps!

I hope that helps you to replace the ink in your HP Laserjet 4250n printer! Thanks for stopping by.

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      8 years ago

      I will add this as a featured lens as I found this quite useful ..... Thanks


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