The Monroe 122PDX is our top-of-the-line medium-duty calculator. Like every Monroe this model has been designed to outlast and outperform competing models. This is our top selling model amongst banks and credit unions. Its also popular amongst professionals who perform a good amount of accounting-style work but need a smaller footprint due to limited desk space. The extra-large plus and minus keys ensure that your keystrokes are quick and accurate. This calculator is easy to learn and is our fastest printing medium-duty machine on the market today. An upgrade from the previous model the Monroe 122PD this calculator features a newly improved printer new programming and a slide switch to select running subtotal or grand total. Its large 12-digit fluorescent display increased print speed of 4.3 lines per second and professional sized keyboard make it a dependable tool for users. Those who know choose Monroe. Join the millions who have trusted Monroe Calculators since 1912 this is THE BEST medium-duty desktop printing calculator available. Key Features Large 12-digit display Cupped numeric keypad similar to heavy-duty models 4 key independent memory Non-add/date function allows you to print a reference number or date Standard 5/4 rounding round up or truncate options Item count Recommended Supplies Monroe 2 x 150? Universal Single-Ply Paper Rolls for Calculators Cash Registers Adding Machines Receipt Paper (ASIN B01ITRX1RO) Monroe M33X ribbon cartridges (ASIN B01MQCM9DT) Monroe Small Angled Foam Elevation Wedge (ASIN B0725CW87B) Whats in the Box One Monroe 122PDX printing calculator power cord instruction manual one calculator cover one Monroe M33X ribbon cartridge and one Monroe 20lb. Bond Starter Paper Roll. This is everything you need to get started using your new Monroe calculator.