Question about Samsung CLP 300 Laser Printer

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Pring quality on Samsung CLP-300 colour laser

On black only printing I'm having trouble with poor quality printing. I'm getting bands of black on the left side of the page. Been going on for a month or more now, just changed to a new black cartridge (factory not refilled) and same problem persists.

Any ideas?

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  • 6 more comments 
  • gscott313 Dec 10, 2008

    The printer is only about 6 months old. It definitely shouldn't need a drum kit. If it does, it's going back to the retailer as unacceptable product.

  • Anonymous Feb 01, 2009

    Looking for a solution here too. Colour printing is fine but black has gone very patchy. (i.e. too little toner being put down). Still on first black cartridge so I changed this but it makes no difference. I've also tried settings in driver "best quality" and print text darker with no noticable effect.

  • gscott313 Feb 18, 2009

    My toner guy say's it's likely the drum on this machine, and the retailer says the drum is built in to the machine so the whole machine would need to be replaced. So it looks like a replacement or upgrade to a better brand than this.

  • Veejay47 Feb 19, 2009

    I have the same problem. I installed a "will fit" black cartridge and it was disasterous so purchased a genuine at AUS $107 and it is a little better but not much. Would appreciate a look at the document too please. How do we get to see that.

    Many thanks.


  • Sunnybanker May 11, 2010

    Slamfix I have the same problem and will have a go at cleaning the blades if you can supply the instructions. Can you post them here?

  • Printelogy May 11, 2010

    Sorry forgot to mention that the 20,000 poages is at 5% coverage. About a little less then a windows test page generates. If you are printing graphic intensive documents it will be less.

  • Printelogy May 11, 2010

    It shows that those Drums are rated for 20000 pages. So it really depends on your usage. If it is onl;y 6 months old it should be under warranty. Have you called Samsung? They should replace it under warranty.

  • Printelogy May 11, 2010

    Have you tried replacing the drum kit? How many pages do you have on your machine and how many has it been since your last drum kit installation?



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If you the image is faded and your toner supply is good, the problem is the developer blades in the imaging unit. During the normal use of the printer, there is a buildup of toner that sticks on the developer blade. The developer blade meters the amount of toner that gets to the drum that ultimately makes it to the paper. As the toner buildup increases on the blade, less and less toner that gets to the drum cause the image to fade.

To fix this problem you will need to disassemble the imaging unit and clean the blades or buy a new imaging unit. I have clean my blades and I don't have 20000 images it is about 7000 and I have a document to show you if you are handy.

Posted on Feb 14, 2009

  • Stephen Lam Feb 23, 2009

    If your printer looks like this:

    Then you need to clean the developer blades. In the image above it is the black blade that need to be cleaned. If there are streaking on any other color, then then also needs to be cleaned.

    To clean the developer blades, look to this link. It describes how to clean them. It only takes a few minutes to do once you get the developers out of the unit. Just be careful when you clean the edge of the blades. You need to make sure that the residue is completely removed from the edge. Also be sure that when you reinstall the blade that the little foam does not get trapped below the blade.Otherwise when you print the side where the blade is not properly installed will have too much color.

    If you are afraid of messing your printer up, then you need to buy a new imaging unit. They go around $100.


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Both the faint printing on the left hand side of the page and the paperfeed problems appear to be inherent in the CLP300.
I called Samsung Support UK 0845 726 7864 and they sent an engineer (I was still under warranty). The black toner feed/distribution unit was changed as was the rubber roller for the paper feed.
If you are not under warranty, call Samsung and arrange a support number. Get the support company to call you and I'm sure they will give you a quote for the cost of the callout.

Posted on Feb 22, 2009


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