This 12-digit Calculator features an extra-large fluorescent display that displays each digit clearly to help prevent reading errors. Two-color 4.8 line-per-second ribbon printer is fast and reliable for excellent legibility. Professional keyboard layout with a left-side total key helps you quickly and accurately input data for fast calculations with minimal errors. Commercial printing Calculator is perfect for the everyday or moderate user especially in a busy office setting. Calculator also includes four-key independent memory change sign key average key double-zero key grand total key and more.