Use http://www.google.com and there are several proposed solutions.
http://www.manualsdir.com/manuals/474564/konica-minolta-bizhub-20p.html?page=100
Konica Minolta bizhub 20P Manual Page 100
Have you replaced the toner yet?
No I don't have another toner cartridge, but I refilled it and it didn't work
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SOURCE: COF36 error on a Bizhub C350
Hi
C0F36 error means abnormally low toner density detected Black ATDC Sensor. Check for the black toner and try reinstalling the cartridge if replaced already. And if the toner crtridges are empty then replace the cartridge.
Please do rate this solution as FixYa and revert for further assistance.
Thanks
Rylee
SOURCE: Toner Sensor Error - Cyan. I got this error after
If you have a lexmark disregard this because their printers wont reconigze most refilled ink cartriges even if its done by proffesionals such as wal-mart est. (warranty also does not cover refils you'd need to buy a new one) what you need to do is take it and get it checked to see if they put the coulor ink in right if they did, then gently wipe the sensor on the printer, and the brass part of the ink cartridge above the ink part, put it back in and see if that works. And lastly go to your printers driver and see if you can reset the toner levels from there manually, if you cant try turning off the sensors or tricking it (google various methods) or buying new cartridge
SOURCE: toner replace error
if you've refilled the cartridge,you'll have to reset the toner count also to zero...to do this,download the firmware here
http://org.downloadcenter.samsung.com/downloadfile/ContentsFile.aspx?CDSite=in&CttFileID=2238869&CDCttType=FM&ModelType=N&ModelName=ML-1640&VPath=FM/200904/20090416100856890/ML-1640_V1.01.00.83.exe
run it and it will reset your toner count to 0...you have to do this everytime you refill your toner.
The firmware for 4300 is not available on the Samsung site,you'll need to google for it.
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My printer is bizhub 20 not bizhub 20p
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