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14.6 Life Test
MCBF
Notes) ●The thermal head life given above is applicable for cases when standard paper is used.
●Printing continuously at a print ratio of less than 12.5% increases the resistance of the ther-
mal head’s heat-generating element by more than 15% of the initial value.
●Excluding damages caused by dust, foreign objects etc.
●Missing dot ratio maximum of 0.5% over 50 km.
Item Specification
No. of printed lines 5 million lines (excluding the thermal head life)
Auto cutter 300,000 cutting operations (One sheet of paper should be less than 85 µm.)
Thermal head 5 × 107 pulses or a printing distance of 30 km