Question about Dell 5110cn Laser Printer

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Dell 5110cn Perhaps you have seen this on the 5110cn. The magenta drum in the drum unit is covered with toner and this eventually ends up as background on all pages. The machine calibrates regularly. Installing a drum unit from another 5110 and the problem remains. So I assume we have a problem with the magenta developer section or a related board problem. Is this a costly repair? Thanks for your input.

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  • Anonymous Oct 30, 2008

    We have had the same problem with 4 of these printers. The first three times, Dell sent a replacement printer. This last time, the Dell rep. suggested I try it on a different outlet/circuit. That helped clear up the problem....until this morning and the problem is back.



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I had the same problem and Dell tech talked me through it. First, hit Menu key. Using up and down arrow keys, select Administrator. Then select Maintenance. Then select Clean Developer. Keep using down arrow keys to get to these menu items. Using down arrow, select color to clear (in my case magenta). Run this whole routine 4 times. It takes a while each time. What is going on is that in the center section of the printer, there is a roller with felt on it and it is cleaning the toner off of the developer roller (you can see all the toner on it if you take the assembly out). Print 10-12 copies of a blank document (e.g., in Word). Should clear up.

Dell thinks this happens if one has the printer plugged into a power bar or other bad electrical connection. We had a power outage but the problem happened suddenly from one print job to the next.

Posted on Dec 18, 2008

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Hi Nick,

You are correct. More then likely it is the magenta developer that is defective.

I am not sure of the cost of the developer. I mostly do warranty work for Dell, so I don't get involved with the purchasing of parts, however, another customer of mine just had a similar problem with the black developer and stated that she put an order in online for one. She found them with either a google or ebay search... Not sure exactly, but I can find out.

If you plan on doing the work yourself, then the cost will only be the cost of the developer and shipping. If not, then it would also involve the cost of a technicians time, and that varies widely.
You can even call Dell and find out what they would charge for what they call a T&M call ( time and material call ) for an out of warranty repair.

If you are somewhat mechanically inclined, It isnt too hard of a job, and I could walk you through it. It gets a little messy if you are not careful, but thats about it.

Feel free to follow up with more questions if you need to.

I am willing to help.. so just ask.

Posted on Oct 18, 2008

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I've had this exact problem a few times. What I did was take the transfer section out and carefully cleaned all of the rollers, both the shiny ones and the felt ones on the opposite side. It does take 10 to 20 minutes to get this fairly clean. Make sure that you use a very soft cloth to clean the shiny transfer rollers and rotate the rollers with the sprocket on the end as you work. Scratches will show on your pages. Check that all used toner receptacles are dumped and clean plastic lens on indicator. Run 20 pages of a completely blank document.

That has always worked for me. Dell did say it was a developer problem, but once I've cleaned everything, it's good for quite awhile. Magenta seems to be the worst, but it happens with other colors too.

Posted on Nov 18, 2008

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go into printer and faxes and and right click on your printer and and go to printer Prefereces you should see either print in black in white or gray scale

this should fix it for you

Good Luck

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Jan 09, 2010 | Dell 5110cn Laser Printer

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I am having the same problem, and I am using the original toner cartridges that were supplied with the printer, so yes, they are genuine Dell toner cartridges.

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5 Answers

Toner smearing all over page

The problem with this printer is not the fuser. It is one of the following:

1) Imaging drum. The drum contains 4 imaging drums. One for each color. They are independent of one another on the initial image transfer and only combine after the initial image is developed. This IS a user replaceable consumable and should be tried first. If this does not resolve the problem see #2.

2) It is the magenta photo developer unit. This part is NOT a user replaceable part, and requires quite a bit of work to get to. The photo developer is located in the developer frame assembly, which can be seen behind the imaging drum when it is removed. The top cover, left side cover, HVPS, and all 4 toner feed tubes have to be removed in order to remove the photo developer frame, and after the frame is removed, the photo developer itself has to be removed from the frame and replaced. reverse disasembly to put back together.

Usually the tell tale sign for a leaking developer, other then full sheets of light color, is extream excess toner dust behind the imaging unit.

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1 Answer

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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 :)

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