High-speed heavy-duty ink ribbon printing calculator 12-digit 2-color ribbon printer 12-digit large fluorescent display Prints at 4.1 lines per second Clock/calendar display & print Tax calculation keys Business calculation keys (cost sell margin) Mark-up/mark-down function Non-add print key & item-count switch Grand total switch Round-up/off/down switch Decimal position selection switch 4-key memory Right-shift display key