Reliability 108 Roll paper printing Life Printer mechanism Thermal head Auto cutter MTBF MCBF 20 million print lines (Assuming 4.23 mm line feed , repeat of 10 lines of printing + 5 lines of paper feed.) 150 million dots, 150 km 2 million cuts 360,000 hours 96 million lines of printing Cut sheet processing Life Printer mechanism ASF Ink jet head MTBF MCBF 2 million sheets (Including check and card reading , with cleaning every 100 thousand sheets.) 2 million sheets 6 billion shots/nozzle 180,000 hours 4.94 million processes