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New Contributor
Posts: 3
Registered: ‎09-27-2019

Color toner is used up when printing primarily black and white

I have a MF743Cdw and my color toner is running out even though I rarely use color when printing. I have the "Color Mode" set to "Black and White", I don't see any other settings to change. I really don't want to change the color toner as often as the black if possible. 

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Esteemed Contributor
Posts: 2,210
Registered: ‎11-19-2017

Re: Color toner is used up when printing primarily black and white

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Black is a by product of primary and/or seciondary colors.Setting printing to "Black and White" only stil uses some color toner.  

~Rick
Bay Area - CA
~6D2 ~Many Lenses ~DxO PhotoLab Elite ~Windows10 Pro ~EVGA RTX 2080 FTW3 Ultra ~Pixma Pro-100
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New Contributor
Posts: 3
Registered: ‎09-27-2019

Re: Color toner is used up when printing primarily black and white

I understand that, what I don't understand is why is there a black toner cartridge if the machine is going to use the color cartridges to print black anyway? Why bother? I want to know if I can change any setting so that it uses only the black catridge like a monochrome printer.

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