I have a Samsung CLP-610ND Printer is showing message - Toner Empty - Black Only I've replaced both black and yellow toners and still receive same message - printer will not print in this state.

SOURCE: Yellow toner empty

You will need to use the menu on the printer itself to change a setting Press "Menu Select" button to get the menu function Use the right arrow twice to select "Engine", then press the down arrow to the "Replace Toner" menu Press the right arrow for the "Toner Empty" menu Press the down arrow to get the Toner Empty settings Press the right arrow to change the Toner Empty setting to "Continue" Press the "Menu Select" button to confirm the setting. You should be able to print, you just won't have any yellow toner. When you get your toner cartridge, follow these instructions to reset the 'Toner Empty' setting to Stop so you will know when a toner is out.

SOURCE: CLP 510 error

Sir,
Inside the front cover of the Samsung CLP-510 printer is a "Waste Toner Bin" - this bin collects any toner which is not fused to the paper during the printing process. The photo at the left shows the waste toner bin installed in its correct position.As you print, the waste toner bin "fills up" with wasted toner, and you have to replace it on a regular basis. Other printers send waste toner back to a separate compartment in the toner cartridge, however Samsung prefers to sell you and additional "consumable" - apparently the $130 cost of the toner cartridges (x4 cartridges = $520/refill) just isn't sufficent revenue.
In the photo below, we see the waste toner bin removed from its operating position, and lying down on the printer door - Just tipped down from its normal place.

Note (1) - this is an optical sensor which detects when the waste toner bin is full - A "bump" on the bin (2) fits into the sensor notch when the bin is in position. An optical sensor looks though the "bump" and is supposed to detect when the toner reaches this level.
Note that one of the inlets for waste toner (3) is just above the sensor "bump" (when the bin is in it normal position). You can also see the round feed which goes into this hole, just above the sensor notch (1).
The problem occurs because the waste toner being injected into the bin "runs down the side" through the sensor "bump" - after a little while, this dirties the walls of the "bump", and although this is nowhere near as opaque as the actual toner, the sensor is sensitive enough to decide the bin is full and shuts down printing. In my opinion, this represents two fundamental flaws in the design:

• The toner inlet should not be positioned such that toner entering the bin runs through the sensor area.
• The optical sensor should not be so sensitive that a little dirt is detected as a full bin.

It is interesting to note that Samsung explicitly advises that you not empty and reuse the waste toner bin - The overly sensitive sensor pretty much guarantees that you cannot do this, as it is virtually impossible to empty the bin without getting toner into the sensor bump, after which the printer will refuse to print and direct you to replace the bin.

The Cure The first time this happened, I noted the dirty sensor notch and cleaned the area - It lasted only for a few pages, at which time I contacted Samsung to report the problem - No matter how I tried to explain the situation to them (over several days of correspondance) the only response I could get from them was "the bin must be full - change it".The new bin lasted for perhaps 100 pages, at which point the dreaded "replace waste toner bin" message appeared. Samsumg responded that I should clean the external sensor (I had advised them that I had tried cleaning the external sensor in my first contact with them).
TO DATE - SAMSUNG HAS REFUSED TO ACKNOWLEGE THAT THERE IS A PROBLEM IN THE DESIGN OF THE WASTE TONER SYSTEM.
To confirm my theory that toner entering the bin via the inlet was dirtying the sensor area, I added a baffle made from tape as shown on the left - This cured the problem - Note how dirty the tape has become! (It WAS clear tape)... a LOT of toner was passing through this area!
Worried that the hot toner might melt/burn the tape baffle, I have since replaced it with one made from aluminum foil - Using only a single layer, with a fairly thin part that passes through the hole and is taped in place on the outside. It is important to get the part passing through the hole to be as flat against the side as possible, as it has to fit in beside the inlet from the printer - too much thickness or wrinkles here could cause a messey leak. It is also important that the baffle NOT be so long that it would prevent the sensor notch from filling from the bottom - this could cause the printer to overflow the bin - which would not be good... I recommend that you check the waste toner bin every time you change a toner cartridge.


This link will be useful.check out the link....


https://www.office.xerox.com/partners/products/Phaser6100/Phaser6100Series.html


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Good luck

SOURCE: black toner

I had the problems with white smear type fading on one side of the page , when pritning black, but colour printing seems OK. Did everything suggested in the manual and more. Changed toner. Been working on it a week.  (I got 2000 pages out of that thing). 
Now I have the solution. Bin the Samsung and buy a Canon.

Lee

SOURCE: Samsung printer shows empty cartridge but clearly has toner

bad chip on toner cartridge.

SOURCE: Samsung CLP-300N printer shows faint banding

Developer roller worned,common problem.roller can be changed,take drum out,2 screw 1 on the side near toner excess bin and 2nd on roller.