Question about HP LaserJet 2420 Printer

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Printing with 6 black dots on right side

After inserting a new toner cartridge, all print outs are coming out with 6 black dots on the left side of the paper

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  • Anonymous Mar 14, 2014

    black and yellow stipes on the left side of the paper while printing

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If the spacing between dots are the same, then you have a dirty or bad roller. If you never had this problem prior to installing the new toner cartridge, then I would suspect you have a bad one. Try a different toner.

Posted on Nov 18, 2008

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My CLP-350 Samsung printer only prints black ink on half the page! While the other colours all print perfectly, the black ink prints strong and clear on the right side of the page but as you approach the...


Here is my solution, hope it will solve your problem.

From your post, I believe your CLP-350N printer has enough black toner. The black cartridge is on the far right side of the printer, so the black toner is harder to go to left side of the roller than right side. Everytime we start the printer, it will move some toner of each color to the roller before it shows ready to print.

Because we always use B&W printing when we start the printer, but less Color printing. The result is there are always enough toner on the 3 color rollers, but the black toner is lean on the black roller. When this gets worse, the left side of the black roller may hardly get any toner at all -- so it only print black on the right side fo paper.

Step by step solution
(CAUTION: Never loss balance while tilting printer! You may drop and damage your printer! Hold the printer firmly all the time! Ask someone to help you if needed!)

Here, front of the printer is where you can access the cartridge, back of the printer is where you connect the power cord and USB cable, left is your left, right is your right.

1.Lift the front to keep the printer tilt to its back at about 45 degree
2.Power on printer while it's tilted back, wait untill green light is on
3.Open the front door, red light will be on, then close the door, printer will start up again,wait untill green light is on
4.Repeat step 3 once again, then put the printer back to level position
5.Lift the right to keep the printer tilt to its left at about 45 degree
6.Open the front door, red light will be on, then close the door, printer will start up again, wait untill green light is on
7.Repeat step 6 once again, then put the printer back to level position
8.Print some test page to see if there is any improvement of black print quality.(Hold the printer button for 3-5 seconds, it will print the test page.)

You may try several times and print several pages each time before you finally cure the problem.

Good luck! And do it safely!

Jan 09, 2010 | Samsung CLP-350N Laser Printer

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sounds like your black toner cartridge is getting low or not filled evenly. To fix this until it get a bit lower on toner just take the cartridge out and holding it up right give it a few shakes side to side. The will spread the toner power out inside and you should be printing normally again.

This can also happen if you moved or bumped the printer. Usually you only see this when the toner is low or after you print a lot of pages. Most text is in the mid of the paper so thats where the toner get s used the most.

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check your print cartridge and your fusing element. you will need to dead cycle the printer to check the cartridge (print a document, when it is half way through turn off the printer, check the toner cartridge for your dots.) are you able to see your fusing element by opening the rear door? check the edges for dots on the fusing element. also there is a transfer roller or belt in your printer, that may also be dirty.

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Good luck
John

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Hope this works for you
Thanks J

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