Question about Brother MFC-9420CN All-In-One Laser Printer

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Blue Toner finishes quicker

Hi, I have a Brother 9420CN printer. It has happened twice that the blue toner finishes way ahead of any other color. I am not a heavy user, neither do I print only in Blue color. I have checked the color settings on the printer, they are on default. Could someone tell me whats wrong

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Re: Blue Toner finishes quicker

If Cyan comes up "low" just exit the cartridge and put paper over the sensor holes on the sides using tape. Viola. Works for MFC 9420 cn. Probably works with all 4 cartridges. Dont believe the machine when it says LOW!J

Posted on Feb 10, 2012

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Re: Blue Toner finishes quicker

I can't imagine where toner could possible go from one of these sort of cartridges except on to your paper, I had a customer once with the same request and I found on their letter head that they printed with it had a single band of yellow across it hence excess yellow use,,,,,, Do your print runs of anything contain dark bands/underlines? I guess check to see if white background in any prints has a blueish tinge to it, or possiblly somehow black is running out and it is printing the blacks by mixing the colours (Check black block and text to see if it is really black not heaps dark blue to ensure black toner is operating)

next I'd be questioning if cartridges where brother ones?

Posted on Nov 20, 2007

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