Casio HR-100TM Calculator with Printer

Key operations are stored in a buffer, so nothing is lost even during high speed input Plastic keys are designed and engineered for easy operation 2 color printing in which positive values are shown in black and negative values are shown in red for easy checking Regular percentage calculations All the markup or mark down capabilities of an adding machine for simplified cost and profit calculations Tax calculation and currency conversion functions Line printing for higher speed, superior print quality and quieter operation Features 2.0 line per second printing.