While you wait for answers, we may have found some information which could help you.
Click here for Change Sharp Cash RegisterSharp drop-A570 not non -tend ?
How do I change tax rate on my Sharp XE-A202 cash register?
how can I change prices?
Sharp cash register XE-A102 frozen keyboard?
Paper Roll problem?
NADA but Error mess.Changed the batteries in my Sharp ER-A330 Cash Register?