Question about OKI C5100n Laser Printer

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When I replaced the drum I know get a 540 sensor toner error

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Get another toner to fit to your new drum, what happens is the toner sits on the drum, and when you lock it on the drum it dumos as much powder from the toner container on top into the drum as it can. If the top unit runs entirly out of toner it will throw the sensor error, if you look at the drum you took out you will see it has the toner in it, so if you even just a put a new one in before you fitted the drum, you will need to fit another..

You can check if this is the issue by looking at the level of powder in drum unit, it should be up to the brim of foam edged slot not below it...then feel your toner if the top cart is empty then thats your issue ..fit another toner

There are other things but this is the most likly and I have given you a test to verify if this is your issue or not.. hope this helps oh and its a good idea not to change toner near drum life ends...or if you dont mind a little mess, before changing drum, invert your old one with toner still on top, while you are holding upside down , keep a firm pressure between both units and unlock the toner, turn upright and you now should have an near emppty old drum and the toner locked back in the toner cartridge ready to transfer its load to the new drum, rather than the expensive stuff heading for the bin......must be money in selling the stuff they want you to waste it....what a planet..cheers.

Posted on Nov 15, 2009

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Posted on Jan 02, 2017

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1 Answer

Oki c711 toner sensor error replaced drum and toner and still get toner sensor error


In the metal chassis there is an oval hole. This aligns with the back of the drum where you see a silver disk and hole. A light beam shines from the oval hole in the chassis into the back of the drum. This sensor that emits the light will be covered in toner hence no light. Just get a cotton bud and poke it into the oval hole and you will end up with toner on the bud. Replace the drum and all will be well.

Oct 31, 2016 | OKI Office Equipment & Supplies

1 Answer

540 : y toner sensor error


Hi moneybaggz52:
Here is your problem.
Symptom:
When setting up a brand new C5100n or C5300n out of box, a toner sensor error is encountered.

The printer can display any one of the following errors:

543K: TONER SENSOR ERROR

540Y: TONER SENSOR ERROR

541M: TONER SENSOR ERROR

542C: TONER SENSOR ERROR
Cause:
This generally can be caused by two things.

1. The toner cartridge lock lever is not in the correct position.

2. The Transfer Belt lock levers are not in the correct position.
Resolution:

Check the appropriate toner cartridge lock lever (Shown below) and make sure that it is in the correct position.
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CORRECT POSTITION INCORRECT POSITION


Check both transfer belt lock levers (Shown below) to ensure that they are in the correct position.
5.2eea?openelement&fieldelemformat=gif
CORRECT POSITION

10.4086?openelement&fieldelemformat=gif
INCORRECT POSITION
Hopes this helps


May 24, 2009 | OKI C5500n Laser Printer

1 Answer

Error message after installing new tonner


Check the little switch/door on the left hand side of the drums.
This has worked successfully for me.

Symptom:
After replacement of a C3530 Image Drum, the message, "Toner Sensor Error" is displayed.

0.10a?openelement&fieldelemformat=gif




Cause:
The plastic shutter in the ID is fully or partially covering the toner sensor window.




Resolution:
Move the cover upward to allow for the sensor to become fully exposed prior to reinstalling the drum.

0.106?openelement&fieldelemformat=gif

Oct 30, 2008 | OKI KIT-C3530N MFP LASER CLR P/S/C/F USB...

1 Answer

Toner sensor error on an Oki C3520 Laser


Check the little switch/door on the right hand side of the drums.
This has worked successfully for me.

Symptom:
After replacement of a C3530 Image Drum, the message, "Toner Sensor Error" is displayed.

0.10a?openelement&fieldelemformat=gif




Cause:
The plastic shutter in the ID is fully or partially covering the toner sensor window.




Resolution:
Move the cover upward to allow for the sensor to become fully exposed prior to reinstalling the drum.

0.106?openelement&fieldelemformat=gif











moz-screenshot-2.jpg

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3 Answers

Toner sensor error after replacing cartrige...


Hopefully this will clear up a little confusion I had:

1. Follow instructions for replacing toner cartridge.
2. Remove drum from printer. Take care not to handle the drum surface. Look for a small rectangular window or depression. The window will be completely or partially blocked by a flap.
3. Use a fine pointed instrument to move the flap up, so that the sensor underneath is visible.
4. Replace the drum. The error should clear after the print engine has reset.

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1 Answer

Clear Error Message


Hello Bruce,
I want to help but I am a bit confused. First of all just to provide you with additional info, there are basically three criteria that cause a need to replace the drum. One ,as in your case,is when the waste toner level reaches a level that the waste toner sensor gets covered with toner and it gives you the prompt you received. What happens is that despite the fact that in an ideal world ALL of the the image that is formed on the drum to be transferred to the paper actually does transfer completely and therefore no waste. Real world is that a small portion of the image remains on the drum and is cleaned off and deposited "into" the cavity of the drum where the waste toner receptacle resides and the waste toner sensor does as well. Once the waste toner sensor sees an excessive level it generates the prompt you received and the cpu begins to count pages (and I'll be d$%&ED if I can find the exact number) and if the drum is not replaced the device will give an error code and shut down. We will return to this topic in a moment as it is truly the source of our dillema. The second reason to replace the drum is that copy quality has turned to ****. The 1023 drum is good for........laugh with me as to how they determined this number, 26,900 copies. Not 26k. not 27k. Collective ROFL. This second criteria manifests itself in just crappy looking copies, and the end user calls for copy quality problems. The third reason is the abstract. For example a foreign object damages the drum. This includes the human hand.LOL.
So, after all that hot air I just expelled I am at a loss as to why you are still getting an error message. The new drum should have satisfied all the requirements as the waste toner sensor is happy now, and there is no counter that needs to be reset. I am sorry that I could not be of more help. I know you will cuss me for saying this, but, power off and power on and see if that helps. And we cannot eliminate the fact that the waste toner sensor that resides in the drum unit is bad. Entirely possible.AND...remember that the cpu is counting only sheets of paper not toner usage. So if the copier thinks the waste toner is full, and it does not "see" that everything is ok now, it will give you an E-19 error code after so many sheets of paper pass by. I looked in the service manual and could not find a finite number of copies after the waste toner sensor gets pissed. Then the machine goes wheels up. If I can help further(like I helped alot this time) let me know. ...........SPINAL.......

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So i know its not a starter cartridge, and i've 'utilized' OKI's site for all its worth. Was hoping someone knew a possible solution. Thanks!

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