Question about Brother HL 2140 Laser Printer

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Toner marks I am getting 3 black marks on the left side of every sheet I print. they are equally spread apart. it seems like every time the roller his the paper (3/4 in round) in the same spot, a smudge appears?

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  • Brother Expert
  • 228 Answers

Your Drum Cylinder has a scratch or clot of toner stuck to it. Every time it rotates along the page (usually 4 rotations per A4) it leaves a copy of the defect on the page. If you take the toner cartidge out of the drum unit, you will be able to turn the drum cylinder until you find the fault. Either replace the drum unit or CAREFULLY clean it with alcohol on a cotton ball (meths or iso propoyl will do) in the case of a toner clot. If the fault recurs quickly after cleaning, then you have a damaged drum and it should be replaced.
Best of luck.

Posted on Mar 21, 2014

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Posted on Jan 02, 2017

Soulvisitor
  • 1113 Answers

SOURCE: Smudge marks on paper; otherwise normal

fuser is usually replaced as a assembly, it's the hot bit a back.

Can only be two things the drum or the fuser as our headstrong friend has correctly explained.

More than likely it is the drum they last about 4 toners i think.

Learn the art of getting a page to stop halfway threw printing, you want to stop the page after the drum has put a image on the paper but before paper has gone threw the fuser (hotbit).

Once you have mastered the position correctly by stopping the printing by opening the door and removing drum/toner cartridge, to reveal the paper that is printed but can be rubbed off, we will know if marks are coming from the drum (you will see them) or from the fuser, if print is fine

Posted on Jan 11, 2008

  • 43 Answers

SOURCE: Printing black smudges across the page at 10 cm intervals

Most likely cause by the drum unit. Replace drum or upgrade printer.

Posted on Jan 24, 2009

  • 133 Answers

SOURCE: Brother MFC 7420: After changing the toner

Just need to clean up all glasses with alcohol and move the blue panel to clean the drum, after that sould be fine.

Posted on May 22, 2009

Semi-Driver
  • 434 Answers

SOURCE: I am trying to print and I am getting 4 small blue

Spots along left margin spaced vertically about 3 inches apart:

Brother HL-4040CN Spots

Posted on Jan 15, 2010

arjoon
  • 113 Answers

SOURCE: I am getting ink spots ~2.5 in. apart on the left

the fusing unit needs to be serviced, more than likely there is toner on the fusing heat roller, also look at the drum unit and see if there is any bad spots.you may have to replace the unit as a whole that is the toner,drum,developer unit.

Posted on Feb 19, 2010

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1 Answer

Konica Minolta 2430 DL has Smudges or dots on page


Not an expert on this brand of printers but it looks like dirty feeder rollers to me. Try cleaning them and Print a Blank document and see if the marks show up

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Canon LBP 2410 Lazer Colour Printer -


Printing not dark enough or varied in darkness
If the print is a dismal gray rather than a sharp black, you are probably almost out of toner. This can manifest itself evenly across the entire page or in splotches or stripes, depending on the printer.

Sometimes you can wring a little bit more out of a toner cartridge by taking it out and gently shaking it from side to side (never up and down, as toner can spill out). You can also try turning up the printer’s contrast adjustment, if it has such a knob (usually on the back side if it exists). Faded print can also result from a dirty corona wire, because a dirty wire inhibits a full electrical charge from being passed.

If the printouts are consistently varied in density, and you have to frequently remove the toner cartridge and shake it to redistribute the toner inside it, make sure the printer is sitting on an even, flat surface.

Horizontal black lines
A horizontal black line on the printout is probably the result of a dirty or damaged roller. There are lots of rollers in the printer, and you can use the space between the lines on the page to determine which roller is causing the problem. Measure the distance between the errant black lines on the page and then use Table A to determine which part might be causing the problem. Table A
Distance between lines
Faulty part
0.5”
Registration assembly
1.5”
Upper registration roller
1.75”
Lower registration roller
2.0”
Toner cartridge developer roller
2.56”
Lower fusing assembly roller
3.16”
Upper fusing assembly roller
3.75”
Toner cartridge photo drum

Regularly spaced splotches
If there are evenly spaced black spots but they don’t extend all the way across the page, the problem is probably a scratch or flaw in the drum or a build-up of toner on the fusing roller. If the spots are less than three inches apart vertically, it’s probably the drum, because the drum has a larger diameter than the fusing roller.

Vertical black line on edge of page
This can indicate an almost empty or faulty toner cartridge or (less frequently) some spilled toner inside the printer.

Jun 07, 2008 | Canon Office Equipment & Supplies

1 Answer

Cp3525 lines on left


This is most likely to be a toner cartridge issue. Either a leaking cartridge or one with damage on the roller of the drum. This is especially likely if it occurred just after changing a toner.

If however the transfer belt of this printer is easily accessible from your printer (I am not massively familiar with this model) it may be worthwhile wiping this down gently with a clean piece of kitchen tissue. This will look like a foot wide sheet of plastic wrapped around two rollers.

Lastly it could be a small roller with residual toner toner powder on it that is repeating down the page. This could be hard to track down, but much like the transfer belt this will get flushed out with continued printing anyway.

Nov 06, 2012 | HP CP3525N Color LaserJet Printer

2 Answers

I am getting a black stripe down the left hand side of all documents that print - I have a FS-2000D Kyocera Printer & have changed the waste toner box, removed the toner (and cleaned the head) but cant...


The problem is in the fuser roller.

Try to open it and see if there are any damage in the red-orange teflon roller.

The other problem can be in the trasform roller.

It's under the drum. I will write down what can you du, but first open the rear unit at the back and inform me about how it looks like.

Open with pulling gray handle. There is a green square mark in the left. Grab it and pull. Now youz will see two rollers. Please tell me everithing about the upper and the lower roller. Rotate it by the gears (360degrees), and see every side.

May 17, 2011 | Kyocera FS-2000D Laser Printer

1 Answer

Faint line when printing a letter


hi this may be the toner roller or supply drum for the toner cartridge . if it scratched or worn it leaves marks on the drum or the roller, which in turn fills with toner and leaves an imprint on the page, you can check these , just remove the toner cartridge and look at the green roller and also look at the black roller, it might be a simple case of changing it or cleaning it....hope this helps

Feb 25, 2010 | OKI C5250n Printer

2 Answers

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

1 Answer

Print problems with brother MFC-8860DN


Replace the drum. The drum is failing.
When you replace the drum open the front door of the machine where thr drum and toner is.
Hit the clear/back button. Press 1
That resets the drum count after you replaced the unit.

Good luck!

Nov 12, 2008 | Brother MFC-8860DN Printer

1 Answer

1320n marks along left side of paper


repetitive defects are caused by either a ding on the drum in the toner, a scratch or dirty transfer roller, or scratched or dirty heat roller in the fuser, Last but not least is dirty exit roller. the first step to any print quality defect is to cahnge the toner cartridge. Good Luck!

Aug 04, 2008 | HP LaserJet 1320 Printer

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Hello I have a canon lbp2900 which has been functioning well. When I try to print i get a message asking me to insert a toner cartridge, however there is a toner cartridge in the machine and I am sure that...


I just posted the similar problem recently. After talking to canon printer service tech, this is what solved my problem:

1. open the top cover and remove the cartridge
2. Inside the printer, these is black roller (with sponge&soft material). Press this gently couple of times
3. below this roller, there is a gray roller. press this roller upward couple to times gently
4. insert the cartridge and try to get print out

hope that helps.

May 12, 2008 | Canon Office Equipment & Supplies

1 Answer

Pages full of toner / toner streaking


First off, this is a comment from a random person who may or may not know ALOT about these printers and toner/printer design in general. All toners are not designed to the same specification. Toner is a combination of plastic "pigment" and iron like shavings to make it magentically attracted to the electrical charges within the unit. Different toners conform to different grades and mainly size of the particles within the blend. The manufacturer doesnt only recommend that you use their toner to make them money, yes of course it makes money, but its because when the unit is designed it is designed to use a certain grade of toner, trust me if you put the non-branded toner vs the branded toner under a microscope you would see quite a difference. Often the non-branded toner is much larger in particle size (obviousely because its cheaper to make at this spec). This causes a variety of issues from excess toner not being cleaned off of developer rollers, IDT rollers, or clogging of toner dispenser tubes in the unit and the micro filters contained at the toner dispenser assy and developer assys. Also as for the issue not changing when switching to dell branded toner - the dispenser tubes within this unit contain up to 500-1000 pages worth of toner, making no change in toner you make immediately visible. Also depending on the damage caused by the previous toner, it may not be able to be fixed until all the components in between the toner and final delivery (drum cart) are replaced. In this case more than likely the toner dispenser assy, all developer assy's, and drum cartridge need to be replaced, and than be sure to stick with factory branded toner :)

Apr 26, 2008 | Dell 5110cn Laser Printer

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