Printer use color toners on Black and white Printing

[Pedrodsf]

Dear all,

I bought an HP Color LaserJet Pro MFP M176n and 3 Black Toners HP 130A to make 5000 copies today, only of Black and White text sheets, and i noticed that after making 5000 copies and 2and half black toners later that my color toners are more than half empty.

And i only used the red marked button that is supposed to make Black and White copies.

Is it possible that my printer have a problem or malfunction?

Is there any fix for this issue?

Many thanks in advance for your help

[east2100]

No, they all ack like that.

Even if you only print B/W the other three color toners will still lose their powerder gradually, so use a color printer to print only B/W or mostly B/W is totally wasting your money.

The best way is to buy a small B/W laser print to print B/W only and all other color printing gives to M176n. 

It will save your much money. 

Color printer's toner is much more expensive than the mono printer's and can print less pages.

Mono printer is much cheap than color's and much more tough than color's.

Buy another more one mono printer will save your money.