i bought this AIO yesterday....quite happy with it
the disposable printhead really give me peace of mind...i can refill without have to worry if the printhead spoil.....
... 
but i got a problem....
I tried to print pictures using Black catridge only.. but i got this message
and when i click OK,the print result is in color , not black & white
i read the onscreen MP170 manual...
i change all my settings according to the manual...but it still print using Color catridge..
and when i tried to print a colored pie chart using both black & color catridge....the print result is in greyscale/black & white
something wrong with my AIO? please help me with my problem..
somebody...please help me..
the disposable printhead really give me peace of mind...i can refill without have to worry if the printhead spoil.....


but i got a problem....
I tried to print pictures using Black catridge only.. but i got this message

and when i click OK,the print result is in color , not black & white
i read the onscreen MP170 manual...

i change all my settings according to the manual...but it still print using Color catridge..



and when i tried to print a colored pie chart using both black & color catridge....the print result is in greyscale/black & white
something wrong with my AIO? please help me with my problem..
somebody...please help me..