Print method Thermal line Point / Line 384 dots / line Dot density 8 dots / mm Effective print width 48 mm Maximum print speed 75 mm / sec. Paper width 58 mm Paper thickness from 60 to 100 microns Easy paper loading paper Character dot matrix, the number of characters / line 12 × 24 dot matrix, 32 characters / line 24 × 24 dot matrix, 16 characters / line 8 × 16 dot matrix, 48 characters / line 16 × 16 dot matrix, 24 characters / line Power printhead 4.2V ~ 9.5V, the maximum 3.66A (voltage 9.5V) Motor 4.2V ~ 9.5V, 0.6A maximum Logic 2.7V ~ 5.5V, 0.05A maximum Dimensions (W × D × H) 68.5x31.5x22 mm Weight 38 g Life 110 million pulses or more (printing rate = 12.5%) 50 km or longer Operating Environment Operating temperature -10 ° C ~ 50 ° C Operating humidity 20 ~ 85% RH Storage temperature -20 ° C ~ 60 ° C Storage humidity 5 ~ 90% RH Detection Head temperature detection thermistor Paper Out detection photoelectric detection