While you wait for answers, we may have found some information which could help you.
Click here for Error H4 Sharphow to fix F3 error on sharp SF 2022?
Problem with blackened copies?
What does H4 error code mean on a Sharp AR- 5316E?
my ER1772 S cash register displays 0.0 instead of 0.00?
What does H4 error code mean on the Sharp AR-5520N?
what does h4 mean on my sharp printer?