Prints up to 3.5 lines per second in 2 colors Features a 12-digit display. Full decimal system, subtotal, total, grand total and backspace key for easy correction. Tax and exchange keys built-in. Independent memory, percentage key and time calculations. AC powered. Casio(R) FR-2650TM Printing Calculator is one of many Printing Calculators available through Office Depot. Made by Casio.