[Error Code] falah taan

[falah taan]

hlo every one please i have mita cdc 1725 give me error the yallow toner is impty I change it by new but it is still give me change the yallow toner I change another one but nothink.....pleas help me to solve it....and I want aske what mean of(the mean unit cover is open) it's paper in the lowr keyboard screen in my meta cd c 172. ..and thanks to all.
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[blsquires]

Re: falah taan

first change the yellow developer it is probably locking up and no toner is getting through.
main cover open is front door