Old issue. Cleaning is temporary...it will give a false reading next time it runs out. Been there at least 30 times when product first came out. After installing modified hopper, never have problem again
hi..did error come when a new drum was replaced.and even if you try a diff new drum you get error but when you put old drum in again no err.
not sure if this is what is happening but if it is then the mc cant init drum clean laser mirrors make sure its clean so mc can do a proper init of new drum as chip on drum keeps all info.i had it once that the bias pcbs needed to be cleaned.