Question about Brother MFC-9840CDW Laser Printer

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Low Toner Warning

Someone explain this, please...I bought a 9840CDW 2 months ago.
So far I probably printed 100 BW text pages and another 100 or so CD color labels and CD color booklets.

Yesterday I had my first big run: 50 full color duplex flyers with an image size of 7x9 inches on the 8.5x11 area.

I checked the toner levels prior to starting. and all 4 colors were as full as the first day of use.
After the first 50 pages came out, I sent the comand to print another 50 pages, and in the print dialog box I got a "Low Toner" warning message.

I checked the levels, and all were still full as the first day, except for the magenta toner which showed up as 90% empty! The image was not a 7x9 solid magenta block; it is an outdoor garden image with some text floating on top of the image on one side and a light clouds with more text on the other side.

I'm aware of the 5% yield theory and I read about the black tape trick and the software cartridge reset but, come on! Aren't these fixes a little premature in my case? I only printed 50 duplex pages!

Are the factory installed cartridges so small? Why didn't the other 3 toners show no change at all?

Any clues anyone please?

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Turn the unit off. Remove the cartridge and shake it back and forth. Ten place it and turn the unit back on. Also you can reset the counter on the cartridge, go to UNI KIT and look under Brother TN 110 refill support. These people sell refills. The ink you get with he printer is minimal. Also turning the printer off and back on will help with resetting. I found that there is plenty of toner left when the warning comes on.

Posted on Mar 29, 2009

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