Question about Samsung ML-2510 Laser Printer

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Copies have black roller marks on the right side of each page, getting darker each time. I can print a single sheet, wait, it print again, wait~roller lines aren't as bad, but still present

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I could be wrong, but I think it's in the toner cartridge. The drum - the roller that the image is formed on - has a soft, plastic blade rubbing against it to clean off excess toner after each print. If a clump of toner gets stuck under the blade, a line is printed down the page where that part of the drum isn't cleaned as well. Between prints, the drum keeps turning, and may be able to clean itself better than in a single revolution. It's a theory, anyway.
Pull out your toner cartridge and look at the drum to see if there's a black line around it at one end. You can't get to the cleaning blade without risking ruining the drum and the cartridge; the cure is just to get a new cartridge. If yours is fairly new, take it back to the store that sold it to you, along with a print sample. They might exchange it.
If the drum doesn't have a line around it, you can test it by deliberately jamming the machine. It's scary, but if you've unjammed jams before, you can do it again. Start a print job, then kill the power when you think the page is right in the middle of the printer. Open the printer and remove the toner cartridge. Look for that black line on the page before it reaches the drum, between the drum and the fuser, and past the fuser. (The fuser is the pair of hot rollers that pinch the page tightly and melt the powdered image into the paper. Any part of the image that hasn't made it into the fuser is still powder and will rub off.)
If the line doesn't show up until after the hot rollers, then I was wrong about the toner cartridge, and you're looking at a fuser problem.

Posted on Mar 11, 2011

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Hi,

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.

Begin by disconnecting the power supply from the wall (not the back of the printer) for at least "30 seconds." This is essential. Then plug the printer back in and follow these steps:
1. Press the "Copy" button.
2. Press the "Menu" button.
3. Press the down arrow button once or until the screen displays "Maintenance."
4. Press the check mark button to select the "Maintenance" menu.
5. Press the down arrow button three times until the screen displays "Print Test Page."
6. Press the check mark button to select this. The Self-Test will start printing.
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.) Should this test fail, 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 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 me know.


your's tech expert
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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!

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1 Answer

How do you clean the rollers?


One common cause of paper feed issues is a build up of dust on the printer's rear paper feed roller. This roller consists of a plastic axle white roller. This is located in the automatic sheet feeder and is referred to as the "Pick Roller." As dust builds up on the rubber rollers, they become less tacky and therefore unable to grab a single sheet of paper.

To prevent and/or cure this type of paper feed problem, these rubber rollers should be cleaned. Unplug the printer's power cord and remove the paper from the automatic sheet feeder. Please remove the paper access door from back of the printer and clean the white rollers inside with a cloth dampened with warm water (be sure there is no excess water on the cloth as it may drip into the machine). After these are free of any dust, close the paper access door. Reload the paper and plug the power cord back in. The paper should then feed normally.

Next, try this printer self-test by following the steps given below:

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.

Oct 19, 2009 | Lexmark X5470 All-In-One InkJet Printer

1 Answer

Lexmark X2350 won't pull paper to print.


One common cause of paper feed issues is a build up of dust on the printer's rear paper feed roller. This roller consists of a plastic axle with one rubber roller on each side. This is located in the automatic sheet feeder and is referred to as the "Pick Roller." As dust builds up on the rubber rollers, they become less tacky and therefore unable to grab a single sheet of paper.
To prevent and/or cure this type of paper feed problem, these rubber rollers should be cleaned. Unplug the printer's power cord and remove the paper from the automatic sheet feeder. Locate the pick roller and clean the rubber wheels on the left and right with a cloth dampened with warm water (be sure there is no excess water on the cloth as it may drip into the machine). After these are free of any dust or ink build up, reload the paper and plug the power cord back in. The paper should then feed normally.

Next, try this printer self-test by following the steps given below:
1. Press the "Power" button to turn the printer power off.
2. Press and hold the "Copy" button.
3. Press the "Power" button one time and release it(keep holding the copy button).
4. Let go of the "Copy" button after the power LED flashes once.
5. The self-test will produce 1 page. The test is not continuous.
The self-test should print out a set of black and color bars.
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.

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Make sure the paper that is in the drawer matches the orientation and size indicated on thje Op Panel Display, If NOT, MAKE IT MATCH.

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1 Answer

Black Lines running down the right side outside of the print area


It may be the fuser. Take it out and inspect the roller on it:

  1. Switch off the device, disconnect the mains plug and wait for 30 minutes before continuing.
  2. Ensure that the bypass tray is closed, or you will not be able to open the front cover.
  3. Open the front cover by pressing the release buttons as shown.
  4. Pull the front cover down towards you.
  5. Disconnect the green plug - squeeze the sides of the plug and pull.
  6. Push the left and right levers outward to unlock the unit.
  7. Pull the unit towards you as shown and lift it clear of the device.
  8. Check the roller for wear marks, If so replace it.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe


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I was getting a verticle black line and I had to clean the glass, the long white bar above the glass, and the white and black rollers before my problem was solved.

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