Appendix Reliability *1: Indicates the point at which the wear-out failure period starts. *2: Indicates the mean time between failures during the random failure period. *3: Indicates the overall mean time between failures, including wear-out and random failures, before the life is reached. • Reliability varies depending on the paper used. For details, contact Epson sales company. • If paper dust or glue from roll paper accumulates inside the printer, it may cause poor printing, erratic paper feeding or cutting, or paper jamming. It is recommended to clean the inside of the printer periodically (about once every 6 months) or when it becomes noticeably dirty.
For the cleaning method, see "Cleaning the Printer" on page 73 . • If liner-free label paper is left in the printer for a long period of time, the liner-free label paper may stick to the platen roller and paper jams may easily occur. If a paper jam occurs, perform the specified cleaning. • If a paper jam occurs even after cleaning, replace the platen roller. 130 Liner-free label paper Plain thermal paper Printer mechanism 10 million lines (When a specific pattern is printed repeatedly) 20 million lines (Each line is 3.75 mm, and 10 lines are assumed to be printed repeatedly for every 15 lines of paper feed.) Thermal print head 75 km (With recommended print density and print speed) Note:
75 million dots per heating element 150 km (With recommended print density and print speed) Note: 150 million dots per heating element Auto Cutter 1 million cuts 2 million cuts (With certified paper: TF50KS-EY) MTBF*2 360,000 hours *When using liner-free label paper for printing 10 million lines of product life. A failure is an accidental failure in the accidental failure period. 360,000 hours *When using thermal paper for printing 20 million lines of product life*1. A failure is an accidental failure in the accidental failure period.
MCBF*3 Print 35 million lines * Indicates overall mean time between failures including wear and accidental failures, over a product life of 10 million lines of print. Print 70 million lines * Indicates overall mean time between failures including wear and accidental failures, over a product life of 20 million lines of print.