KF2003-GH10A printheads 1/4 compact low speed thick film thermal printhead (8 dots / mm) KF2003-GH10A the KF2003-GH10A is a compact and lightweight thick-film thermal printhead with a printing speed of 50mm / second, developed mainly for ecrs. ! ! ! ! applications cash registers label printers receipt printers general purpose compact printers ! ! ! ! features 1) a new pin connector structure greatly reduces the size and weight. 2) a newly developed 144-bit ic levels the strobe partition and reduces the noise level. 3) one rank resistance value of 1500 ? 3% eliminates the inconvenience of rank selection. 4) 2-inch, 3-inch and 4-inch series are available. ! ! ! ! external dimensions (units : mm) dot #576 83 (heatsink width) 72 (effective print width) epoxy resin coated dot #1 16 0.2 15.1 1 2.6 0.1 no.9 no.1 no.9 no.1 connector b connector a max.1.7 5.85 max. 14.0 4.6 5 73 2-m3 (effective depth 4.5)
KF2003-GH10A printheads 2/4 ! ! ! ! equivalent circuit vh gnd stb4 stb3 di v dd tm vh 8,9 1,2 8,9 7 6 5 4 3 dot #576 dot #1 1,2 5 6 7 lacth register shift register 4 3 gnd stb1 stb2 lat do clk connector a connector b 4321 fig.1 thermistor 30k ? b3950 ! ! ! ! pin assignments gnd gnd tm v dd stb4 stb3 di vh vh connector b vh vh do clk lat stb2 stb1 gnd gnd no. 1 2 3 4 5 6 7 8 9 circuit connector a no. 1 2 3 4 5 6 7 8 9 circuit
KF2003-GH10A printheads 3/4 ! ! ! ! timing chart clock (clk) data in (di) data out (do) latch (lat) strobe (stb) driver out tw clk t setup di t hold di td do t setup lat tw lat t setup stb tdo tdo t hold lat "high":black "low" :white "high":black "low" :white "high":hold "low" :through fig.2 ! ! ! ! characteristics parameter ? ? ? ? ? ? ? ? rave v h p o slt t on 72.0 0.125 576 1500 24.0 0.30 2.5 0.73 288 4 14.0 50/5 10 7 5~45 mm mm dots ? v w/dot ms ms dots mhz mm km/pulses c symbol typical unit effective printing width dot pitch total dot number average resistance value applied voltage applied power print cycle pulse width maximum number of dots energized simultaneously maximum clock frequency maximum roller diameter running life / pulse life operating temperature
KF2003-GH10A printheads 4/4 ! ! ! ! electrical characteristic curves 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 scanning line time (ms / line) fig. 3 adaptive speed chart energy (mj / dot) 0123456 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0 0.05 0.1 0.15 0.2 0.25 0.3 energy (mj / dot) fig. 4 representative density curve optical density 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0123456 scanning line time (ms / line) fig. 5 maximum energy curve energy (mj / dot) 0 20 40 60 80 100 120 140 160 180 ? 20 ? 10 10 30 50 70 0204060 temperature : ( c) fig. 6 thermistor curve resistance : (k ? )
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