Bypass OKI Printer C301 Low Toner Warning! 

This helped me to do my expenses today! I was just careless neglecting the K toner warning for weeks. I've got C321dn. When I had set "Toner sensor" = "Disabled", the printer still stayed in error state (and wouldn't print). But then I took the chip away from K toner catridge, put it in the printer, restart printer - missing K toner error - put the chip back - restart printer - and ONLINE printing started. I would guess simply taking K toner catridge out and restart would do the same trick. Maybe my printer was somewhere too deep in error state and required this extra step.

You are an absolute star. I needed to print out an Ebay returns and my printer wouldn't let me until I saw your video, thank you! 😀

OKIDATA MODEL-C5100 It took me several hours, but I figured out how to do this. It is very similar, but you don't need the code six zeros. Here's how: (1). power up while holding the + and - keys. (2) display says "OKI USER". (3) scroll to "ENGINE DIAG" MODE" and push ENTER. (4) display says MODE xx.xx.xx.xx S-Mode is indicated. (5) Press (+ or -) until display says "ENGINE=PARAMETER SET 2" then press ENTER. (6) press (+ or -) until display says "TONER SENSOR = ENABLE" (8) Press ENTER. (9) press (+ or -) so display says DISABLE. (10) press these 2 buttons at the same time ONLINE and CANCEL. Now the * star symbol is displayed, indicating you have disabled the sensors. I turned my printer off and back on... and now the sensors are disabled.

Thank you! Works on OKI301dn on Windows 7 Pro 64bit! For those OKI is set to printer share and cannot print, go to "Pinter Properties" of OKI printer. Go to "Advanced" and click "Print directly to the printer". If you have a document still waiting to print, please delete the queue printing then try again. For my case, it wouldn't print due to notification for toner replacement.

I'm so grateful you shared this. Was able to get my printer to print again.

Thanks for sharing. Unfortunately while that option exists on my oki mono printer, it doesn't seem to do anything. It behaves the same with sensor disabled as it does with sensor enabled. It prints about 10 pages then nags. I'm just commenting so the next person who inevitably runs into this doesn't feel so lonely :)

It is working for OKIB431+ and solves also error 547 which no other way soved ! Thank you Eli ! Ziv

יש לי 432 B לא מצליחה להגיע למערכת בלחיצה ממושכת כפי שמתואר, יש דרך לאפס ב432?

Can you help me? My printer is OKI C332dn, I found difficult after refill printed only 200 pages then tell 432: K TONER EMPTY. I tried holding 'UP' and 'DOWN' while powering but does not wake up on 'MAINTENANCE'. Please help REPLY

it worked also with c321dn for few days bot now it is same as earlier. Thank you anyway!:)

Hi, how can I skip my samsung proxpress m4583fx sensor and use all the toner left in the cartridge

Worked for my C511dn like a charm, thanks a 1,000,000 תודה הצלת אותי

Hi, this works too in Oki C332? Thanks a lot.

Gracias desde España amigo.

THANK YOU! IT WORKED FINE. GOOD JOB

wow thank you it worked for me. thanks again

Thanks for the help!

you are my hero! thanks!

Большое спасибо, все работает

Under same menu you can change setting for drum so you can still print.

האם יש דרך לאפס את המונים של הטונרים ולהמשיך להשתמש גם אם כבר מילאתי אותם פעמיים (בערך 3000 דף עם הטונרים ההתחלתיים)?

OMG you are a god! Thank you so much.

I had an order C online warning and couldn't print. After following instructions I managed to print the item I was trying to (40-odd pages) but the sensor screen continues to display Online Order C Toner - Online Power Save. Also my Green lght never flashed and both red and green lights are on as before. So, I managed to print when I couldn't before and guess I just got to drill hole and fill up C Toner. I guess this is to be expected. I obviously disabled the sensor but still need to fill up C Toner. It won't keep printing if toner is empty IsawUupThere but the sensor stops the printer from functioning & tells you a new cartridge is necessary some time before it's really empty to maximize profit. I believe disabling the sensor is a necessary step if you intend refilling the cartridge yourself which is what I will do now. Details of how to do this should appear on the next RU-vid video to show up by U Refill Toner. Hope this helps and a big shout out to Eli. Thank you, sir!

היי אלי, יש לי OKI C511dn שזה כמעט זהה ל- C301 עשיתי את מה שהצעת אבל הבעיה שהטונרים שלי ריקים לחלוטין - אם אני אמלא את הטונרים זה יעבוד או שצריך לקנות צ'יפ חדש?

merci beaucoup Eli!!!! :)

In C332dn, please tell me the button operation to enter Level2 from "DIAGNOSTIC MODE xx.xx.xx S-MODE" in maintenance mode.

Hi work on c531dn ?

Can you tell me how to do the same in OKI ES941.

Thank you so much!!!😁

merci. It works on MC362 too.

MERCI!

Thank You

many thanks

Thank you buddy

valeu manooo vlw (do brasil.) im from brazil

Amazing!

Thank you, it works.

THANKS!

Work on okic322dn??

thank you so much!

Thanks!!!

thanks ı have same printer ı hope this going to work

Tanks is Brazil

תודה רבה איש יקר רק איפה אפשר למצוא אבקה בזול לא מצאתי חחח

Works the same on C321dn. Thanks

it is not work on c332c

Dont works for me!

Can you help me? I found difficult after refill printed only 200 pages then tell 432: K TONER EMPTY. I tried holding 'UP' and 'DOWN' while powering but does not wake up on 'MAINTENANCE'. Please help