Question about OKI C3400n Laser Printer

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Oki Laserjet C7550. It says the Cyan and Magenta toner is empty. It says the Cyan sensor is not working. The printer prints all colors fine. How do I get this error message to go away?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Soulvisitor
  • 1113 Answers

SOURCE: toner sensor problems

On the base of machine after removing drums and transport, there are 4 sets of 3 pins that connect to left hand bottom of each drum, these can get toner on them and not make proper contact, each set of 3 pins just pop out with the help of a flat blade, out of base to be cleaned. in yout case just switch the set under the cyan with another lot from different colour.

I am taking it that you are using genuinne non imported oki drum and toner. If this doesnt fix your problem then you must have fauly drum/toner

Posted on Nov 13, 2007

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SOURCE: toner sensor problems

Hi i have the solucion a error of sensor black oki c3100. For two times i have the problem and a long time study the problem. it´s the solucion. Because i spanish the solution is in spanish languaje.
Desmontar la tapa semitransparente redonda del lateral.
El sensor lleva un iman incorporado que dice a la impresora cuando el toner se a agotado. El polvo de impresion lleva impurezas o las ponen a proposito y hacen que el iman no pueda levantar la leva que hace contanto con el sensor. Con un destornillador limpiar las impurezas que estan pegadas al iman por dentro del toner. Cerrar y listo. YA FUNCIONA JAJAJAJAJAJAJAJA.

Posted on Apr 25, 2008

  • 97 Answers

SOURCE: 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.

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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.

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Posted on Dec 07, 2008

LizBux820
  • 1 Answer

SOURCE: Have an OKI Printing Solution

Found this at Fixyourownprinter.com

1. Turn machine on while pushing and holding the TWO up/down menu buttons at same time.
2. Menu window will show "OKI USER"
3. Scroll to " Engine Dialog Mode" is indicated. Push Enter button.
4. "Diagnostic Mode xx.xx.xx S-Mode is indicated.
5. Scroll to "NV-Ram initial" is indicated. Push ENTER.
6. Window shows "NV-Ram- Initial Table 1".
7. Push ONLINE and ENTER Buttons simultaneously and HOLD for 10 seconds after you see "Executing Reset" appear in menu window.
8. Restart printer.

All toner, drum, fuser and transfer figures return to 100%.

Worked for me when I had the same error. Hope it helps.

Posted on May 26, 2009

  • 2 Answers

SOURCE: Any way to reset the toner empty sensor on C 3400?

THIS POSSIBLE SOLUTION IS FOR AN OKIDATA C3400N PRINTER ONLY.

You can try taking out the complete toner & drum assembly for the Cyan (or any you have this problem with). To do that you open the top and just lift the recalcitrant assembly straight up. Once it is out, with it oriented exactly as you lifted it out, look on the RIGHT end of the assembly for a small rectangular window - about 1/4" square. It should be about 3/4" below the two metal contact points on that end - near the top that you lifted out about the same level as the toner itself. In that hole, if it looks like the opening is covered (just inside) by a bit of black plastic, take a pointed object (like a straightened paper-clip) and try gently to lift this plastic piece UP - don't stick the clip in too far. If you gently do this (may take a try or two) that piece of plastic should stay UP - allowing you to see a bit farther inside. Replace the assemble, close the door and let the printer recycle.

Just to help you understand what may be happening - this little piece of plastic is supposed to start in the UP position when the toner is new. Eventually, as the toner becomes used up, the piece of plastic is designed to gradually drop down and eventually block the sensor - indicating to the printer that the toner is spent.

I have had this happened to me several times with new toner cartridges - especially with the non-OKI OEM knock-off "compatible" toners. This has always worked for me - but no guarantee it will for you!

The other possibility of course is that you actually have a bad toner, which trying this should help to confirm.

Posted on Jan 23, 2010

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HP color laserjet cp2025 will not print. Help.


No.

Very few printers will print if they're out of toner, even if the colour toner is exhausted and the print job is only black. Replace the empty toner and if this is the only problem, the printer will continue printing.

Jan 20, 2015 | HP Laserjet Cp2025n Printer

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Cyan and Magenta does not print on the right side of the paper. Toner indicator shows three quarter of the cartridge to be full. Yellow and black prints are perfect.


I have worked/ serviced similar Laserjet Color Printer with same issue.
Actually, prints with faded colors or different colors are due the the dust/ toner dust accumulated on the optics (mirrors and lenses) inside the printer, which refect the laser beams to form prints. For instance, red color is formed by a mix of yellow and magenta toners. The color is replaced by yellow due the the partial or complete blocking of the image laser beam for
magenta as the mirrors which reflect laser beam get covered with dust and toner (which partially blocks the laser beams). Hence the image is not produced properly. This needs professional hands for servicing and cleaning of the optics inside the printer. Note that first magenta goes off, followed by yellow, then cyan and lastly black. This is due to the mirrors placement inside the printer. Magenta is the last one facing upwards at 45 degrees angle and gets most of the dust and goes off first.

Rest assure that the printer requires ONLY CLEANING OF THE MIRRORS, which are inside the printer. So, it is advised that you get the printer serviced by any printer repair/ service professional. (Please note that the mirrors, lenses and scanner assembly inside such printers is extremely complex and can get damaged very easily especially the mirrors).

Hope it would help. If you need any clarification, let me know
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Mar 31, 2011 | HP COLOR LASERJET CP 3505 N PRINTER

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My boss want to replace the black ink cartridge for one that prints color. Can this be done with the HP 12-a cartridges? HP Laser jet 1022


Unfortunately laser printers don't work this way. The laserjet 1022 was designed for black and white prints only. In order to do color printing with a laser printer you will need to purchase one that is designed to print in color. The laser printers work a bit differently than the inkjets - the laser printers have 4 toner cartridges, one each for Cyan, Magenta, Yellow, and Black, that work together to print a full color page. With the old inkjets you could just replace a black cartridge with a color one.

So, short answer: Sorry but no you can't make a laserjet 1022 print in color. :)

I would recommend looking at an entry level color laser printer from hp, such as the CP2025 (http://h10010.www1.hp.com/wwpc/us/en/sm/WF25a/18972-18972-3328060-15077-236268-3673580.html) if you are looking into purchasing a color laserjet.

Hope this helps

Please rate this post, thanks!

Mar 09, 2011 | HP 645A Magenta Toner Cartridge (C9733A)...

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Excess cyan toner is on electrostatic transfer sheet even after wiping it. All black and white pages are printed with cyan background.I am even using original cartridges.


Since you have Cyan toner in places where it should not be then the only possible cause is a defective Cyan Toner cartridge. I worked on one just last week where the customer complained about Magenta toner on their prints. I also noticed Magenta toner on the Transfer Belt just as you see Cyan toner on the Transfer Belt. I replaced the Magenta Toner Cartridge and everything cleared up nicely. The Transfer Belt Unit can also cause similar problems but it would not be ONLY one color like Cyan. It would be a mixture of all colors. My bet is replace the Cyan toner and you will be fine. If you have an old empty one just shake it up a bit and try it as well. This might allow you to verify before buying a new cartridge.
Good Luck and Thank You for using Fixya.
Wheatland Services

Feb 06, 2011 | HP Color LaserJet 2600n Printer

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Colors are not printing the acutal color


It all depends on the meaning of 'not properly'.

Try creating a document with four different squares, or words, of these colours: yellow, magenta, cyan and black. If all of them print (albeit not with the correct shades) it is probably an ICM driver error. But my guess is that only one of those four colors will print badly, due to a defective color cartridge.
The OKI 5150 makes all perceivable colours using cyan, magenta, yellow and black toners, so if one of these malfunctions, the resulting colors will lack the required shade of, say, yellow, and will appear to be "wrong". The yellow colour itself, of course, would simply disappear (the "yellow" you use might actually be 95% yellow and 5% cyan; then the "yellow" square will be printed as a very light shade of cyan, while the other colors - say, 95% magenta and 5% yellow - will turn out almost exact).

Try with the color test and replace any failing cartridge; if all four (almost) pure colours do print incorrectly, it's unlikely to be a cartridge problem, and we'll have to dig deeper.

Sep 09, 2009 | OKI C5150n Led Printer

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Newly replaced original magenta toner not printing


Dear this printer is solve this problem just

chnge the magenta toner scaner ok ........after that is working but ...do not any idea about this just call me :+91-09328015664
and Email:support@compudesk.in

Jul 14, 2009 | HP Color LaserJet 2600n Printer

1 Answer

The red is not printing


At a guess you are using recycled toners? If the recycler has not worked out the refilling procedure properly, the problem you experienced with the exploding Cyan toner is common. It is possible in the act of blowing out the loose cyan toner your have used to much air pressure, possibly blowing toner into the laser beam units, or damaging the toner sensor unit for magenta.
A diagnostic inspection, by a technician would be suggested.
Cheers: DeJudge

Dec 30, 2008 | HP Color LaserJet 2600n Printer

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My Hp LaserJet 2600n stop black stop printig


the problem is cyan and yellow toner are low, u will change the cyan and yellow it will be cleared otherwise the will be empty u can't print any thing suppose one will empty other cartridge will not work

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Firstoff, if you have tray 1 set to "any size" & "any type" they had problems with it going into calibration to frequently. If you upgrade the firmware this will take care of that. As for no Cyan, check the scanner interlock to insure it is opening the scanner cover. You could also go into diagnostics and disable cartridge check and swap the cartridges around, ie. cyan & magenta, run the print quality pages and see if the problem follows the cartridge. It could also be HV power supply.

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What is the stats % of drums if low under 50% change them, soon as you add non Gen you throw a spanner in any attempt to fault find, fix is possible toner more than likely drum/drums, do a print of each colour and change drums as indicated by failure in its colour to print, check transport belt is OK and led heads are clean

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