While you wait for answers, we may have found some information which could help you.
Click here for Error H4 Sharpwhat does h4 mean on my sharp printer?
Problem with blackened copies?
how to fix F3 error on sharp SF 2022?
my ER1772 S cash register displays 0.0 instead of 0.00?
error code H flashing?
Sharp AR 6020v Error CH?