For future H 4 was sokved by calling Sharp at1-630-376-3590
Solution press the C (copy) button and then the Auto button quickly two times, if it does not clear the first time try doing it until the digital screen goes blank, then put in 1 copy find something to print and hit copy button. It should be okay after that.
The error H and 4 blinking indicates that, You have a defective fuser unit.
H is for HEATER
You should replace youe heater unit, if your product falls in warranty period, you can avail wrranty..
I installed a new drum in my Sharp AL-1540CS. I remember from past installations, I needed a code....
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I installed a new drum in my Sharp AL-1540CS. I remember from past installations, I needed a code. For it to work again. I called the vendor. But it's Saturday and the vendor is closed