Sharp EL-1197PIII 12-Digit 2-Color Ribbon Printer 14.0mm Display Heavy Duty Electronic Calculator.Sharp Model Number: EL-1197PIIIFeatures:• Large Display - 12-digit (14.0 mm) blue fluorescent display with punctuation• Hi-Speed Ribbon Printer - prints at approximately 4.3 lines/sec. and is ideal for heavy duty office use.• Grand Total - adds the grand total of several calculations such as the total prices times units on an invoice.• Calendar / Clock Function - displays and prints date and time.• Mark-Up Key - is used to perform mark-ups, cost/sell/margin calculations, percent changes, and automatic add-on/discounts.• Average Key - is used to find the "mean" or average.• 4-Key Memory - includes memory plus, memory minus, recall and clear memory keys.• Additional Features - include mark-up/profit margin key, floating (F) or fixed decimal (6-3-2-1-0), add (A) and constant (K) modes, and item count. -Prints on standard paper roll and operates on AC power.