LOCATION OF TONER SENSOR OKI C710

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.






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.

SOURCE: oki c3400 toner sensor error

I found the solution here.
http://www.c3400.co.uk/index.asp?menumode=0&content=sensorerror

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

Gouval.

SOURCE: toner sensor problem k toner 543

Try reseating the toner cartridge, it might not be in good. Reseat the whole drum unit (the part the toner fits into).

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.

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.