... printer, 58mm 2)Mini/pocket cash register,POS Printer parts 3)Printing Life: more than 50Km JJ-03 thermal printer mechanism ... of Columns12 × 24 dots, (1.5 × 3.0mm), 32 columns:24 × 24 dots, (3.0 × 3.0mm), 16 columns:8 × 16 dots, (1 ... 0 × 2.0 mm), 24 columns:9.Operating Voltage(1) For print head 4.2 VDC to 8.5 V, average ... 4.2 VDC to 8.5 V, 1 A maximum(3) For logic 5 VDC ± 5%, 0.1 A maximum10.Dimensions ...