Question about OKI C5300n Led Printer

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OKI C5300

Printer tells me I have a toner cart. sensor error, but all cart. are new and installed.

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6 Suggested Answers

  • 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.

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


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

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



Posted on Dec 07, 2008

  • 1 Answer

SOURCE: oki c3400 toner sensor error

I found the solution here.

A plastic thing was closing the sensor window. Open the window and you will solve the problem.


Posted on Jan 26, 2009

  • 1 Answer

SOURCE: OKI C3400 printer keeps saying

Okay, I had the same problem with my C3300. I phoned the people i purchased from and this is what fixed it for me:

looking directly at the printer:
-open printer
-remove drum in question (the drum is what houses the toner cartridge) in my printer it is black.
-look on the right side of the drum & there is a little (approx 5mm x 5mm) hole that has a little panel that opens- push this up to open it.

-replace drum close the top and try printing.

I had to do this 2 times before it worked, but it worked.

Posted on Apr 16, 2009

  • 1 Answer

SOURCE: Have an OKI Printing Solution

Found this at

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

  • 13 Answers

SOURCE: I have a new OKI B410d printer which is givng

It is more than likely that you have an incompatible toner fitted to the drum unit. Either a generic cartridge or b430 or b440 cartridge which is not compatible with b410's. Beyond that it may be a faulty drum unit. Hope this helps.

Posted on Sep 14, 2009

  • 22 Answers

SOURCE: Machine flashing K Toner Sensor Error - how do I

See if this works - switch off at mains, pull black toner part way out, push back in, switch on again.

Posted on Feb 21, 2010

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2 Answers

Message on window: check toner cartridge 542: C toner sensor error

try a different toner first .... doesn't have to be a full one ... just a different toner box. had the same on a machine and it was only a bad toner cartridge. so the easiest thing to do is swap drum units with toner installed ...
if it turns out to be the cartridge you can have a look at the right side ... there is a hole in it and a white plunger moving there and gives the machine the current toner amount in the cart.

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You cannot do borderless printing with a toner/fuser based unit.
The printer needs a paper grip area and cannot print to the edge due to the fuser.

Sep 30, 2009 | OKI C5300n Led Printer

1 Answer

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Take out the magenta cartridge to the right upper indside wall of the printer you should be able to see a small rectangular window, give it a blow of wipe with a cloth, do the same to the corresponding part of the m toner, put the drum and toner back, shut the lid and everything should be ok. If not contact oki for a replacement drum/cart.

Mar 23, 2009 | Printers & Copiers

1 Answer

Okie C5400 giving 162: Fatal Error

Magenta toner sensor error. Reseat drum unit. check toner cart. Take out the key that prevents you from putting drums in wrong slot and swap the whole drum and toner assy with another color, if it follows the magenta unit then that is the problem somehow.

Mar 19, 2009 | OKI C5400 Laser Printer

1 Answer

Fatal Error 162

I am pretty sure this is the result for your 162 code:

Toner Sensor Error, Color:Cyan
When cyan toner sensor error has occurred

Try reseating your toner carts.

May 14, 2008 | OKI C5150n Led Printer

1 Answer

Oki 9800 fatal error 230

No reset need to fix fault then clears...

Replace Toner Cartridges with Gen OKI new ones... are you using non oki product? Cause Toner carts, thats where I would start looking cause the error is the machine not receiving correct information from a little chip built into the toner cartridges to allow operation to begin.


Dec 07, 2007 | OKI 9800hdn Laser Printer

1 Answer

Oki 9800 230 fatal error

No reset need to fix fault then clears...check toner carts are secure on drums, all their contacts are clean,

Replace Toner Cartridges with Gen OKI new ones... are you using non oki product? Cause Toner carts, thats where I would start looking cause the error is the machine not receiving correct information from a little chip built into the toner cartridges to allow operation to begin.

Dec 07, 2007 | OKI 9800hdn Laser Printer

2 Answers

Problems with Oki Printer and Toner Sensing

Yup Dodgy refill cart without require chip to identify itself to the printer or cart not suited to b4200/4250 , get a real oki toner from your country that suits exact model.

here is code for required product


Oct 31, 2007 | OKI B4250n Laser Printer

1 Answer

Oki C5300 toner "leaking" on to surface

1 - take out all consumables
2 - use canned air to clean interior (do it outdoors)
3 - spray toner cartridges to remove stray toner (keep them connected to the drums, do not separate)
4 - make sure toner carts are properly installed and locked down

Oct 25, 2007 | OKI C5300n Led Printer

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