I am receiving constant error messages and not knowing what could be the possible case. Io am currently having Laserjet M1213nf MFP and made installation of recent drivers and was well ok, but after some few days it was with 10.1000 Supply memory error message and this occurs when I power on. I am really frustrated with this one but thank god all functions are working properly. So it seems to be an software issue, which part is affecting due to it. can you explain me further. Please sort it as far as possible . I just came across that the reason why this is occurring because toner is not a hp genuine, and that could be the possible reason. Am I correct.