Question about OKI B4100 Laser Printer

4 Answers

B4100 - Yellow Light


I have had a problem for some a little while where the yellow light at the end blinks on my B4100 Oki Printer. See picture:

It blinks every 1 second. I have tried to open and close all trays, I have checked inside with the catridge and the only way I can print is if I press the // button (see picture) for every single page. The yellow light just wont go away. I have consulted Okis knowledge base with no luck and the manual (found here) has one solution to my problem

"1. There is a printing error, problem with paper or a cover open."

which has been of no help. If anyone has any suggestions I would be very thankfull! Even though I have an C3300N I still use my B4100 daily because I love this crappy cheap printer to death! Thanks in advance for any suggestions!

Posted by on

  • Anonymous May 10, 2009

    same problem

  • Anonymous Mar 29, 2014

    no error lights, recently printed 1000 pages in a row



4 Answers

In my case it was 2 sheets of A4 paper that had found its way in front of the sensor. That OKI status monitor software helps alot to figure out whats wrong with the printer.

Posted on Jun 15, 2008


Thank you for the help guys. It might have been residue of paper stuck. The funny thing was that after the I cleaned the printer within it was fixed, but then it started blinking again, but this time its blinking with an intervall of 4 seconds and not 1 second, which is the Toner that is low, which I was expecting before. Also worth mentioning that I do not have to press the // button for every page printed now, even though the yellow light has a 4 second intervall.

Thank you again!

Posted on Dec 01, 2007

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What does the status monitor on computer tell you, LINK to status monitor if requried.

My guess is you have a Toner low indication...I got this from your user manual
"Replace the toner cartridge after Toner Low displays in the printer Status Monitor. Also, the Error LED indicator slowly blinks when toner is low.
After Toner Low displays, the printer will print about 100 more pages
then display Toner Empty and stop printing."

Posted on Nov 26, 2007

  • Soulvisitor
    Soulvisitor Nov 26, 2007

    Or one of the paper detect jam switchs is stuck down.


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  • 46 Answers

U can have stuck a little piece of paper, that it mess whit some sensor. Try to open the Oki, push the drum unit out and watch if there is no paper stucked.

Posted on Nov 26, 2007

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Posted on Jan 02, 2017

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1 Answer

There is a yellow light flashing which i think is stopping my printer from is the symbol furtherst to the right out of the 4 symbols any ideas

The rightmost LED is the Error light. How fast is it flashing?

If the light is flashing 1 long flash every 4 seconds (no other lights flashing), then either the image drum needs to be changed or the toner is low.

If the flash is one blink a second, then you have a paper problem or a cover open.

If you installed the OKI software with the driver, you can use the Printer Status monitor to identify the problem and order the consumables if you have a slow blink error. (Open the printer control panel (Start >Programs > Status monitor) and Maximize the window to see the Printer status.

You can find the manual for the OKI B4100 here: . View all manuals on the right. If that link doesn't work, see the support site: and select the B4100 in the Color/Mono Page Printer drop down menu.

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