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The Sharp ER-A420 was a great cash register but sadly is no longer made None of the Sharp cash registers are being made any longer. Please consider a SAM4s cash register who have become the leading manufacture of cash registers. Here is a suggestion for replacment for the Sharp ER-A420 cash register The SAM4s line up has more features than the ER-420 did. Give it a try, we think you will like it.