12 Digit Printing Calculator with a printing speed of 4.5 lines per second. Includes a mark up function, average and add or subtract tax functions. It has a 2 colour print.Tech Specs and Features:Display Type – DigitronNumber of Display Digits – 12Automatic Power Down – yesPower Supply – MainsBackup Battery – CR2032 x1Keys – PlasticDimensions – 327 x 221 x 78 mmWeight – 2000gPrint:Printing Colours – Black, RedPrinting Speed – 4.3 Lines/sec.Paperroll (Size) – Standard (58 x 80 mm)Ink Ribbon – yesInk Roller – no