KF3004-GM50A Printhead Thick film thermal printhead (with thermal historical control) KF3004-GM50A GM50 series is the new product that newly added the future history control and driver LSI which has the function of thermal historical control, to GL50 series which is employing the conventional thick-film fast response thermal element. !Applications High speed label printer High speed bar code printer High speed ticket printer Various high speed terminal printers !Features 1) Newly developed thick-film fast response thermal element and driver LSI with the function of thermal history control which is added the future history control are employed for this series. It is possible to print with super high speed of 10 inches / s or 250 mm / s. 2) 150km life realized by attributing durable new protection film. 3) New partial glaze construction makes it compatible with the thermal transfer application. 4) Market-proven G-series printhead construction ensures high reliability. !External dimensions (Units : mm) 3-M3(Effective Depth 3) LABEL 118 800.3 400.3 Dot #1 150.3 #2 #20 #1 #6 #19 CONNECTOR A CONNECTOR B #1 3H10 Length 4 (Effective Depth 3) 3H10 (Effective Depth 3) 17.80.2 7.30.3 Max.12 Max.5.5 15.30.3 2 0 (20.8) 950.3 250.5 108.416(Effective Print Width) Dot #1280 (19) 14.2080.2 (5) (3) Max.36 Max.45 (4.792) 6.10.4 KF3004-GM50A Printhead !Equivalent circuit DOT #1 DOT #1280 VH(COM) 100Fx2 35V GND 0.1F 50V VDD(+5) / STB2 / STB1 / RESET LATCH REGISTER CLKIN2 DI2 DO2 CLKOUT2 CLKIN1 DI1 DO1 / LOAD START TO EACH IC INC SEL2 SEL1 TM THERMISTOR 30k B : 3950 TM DI,STB DIVISION DOT No. CORRESPONDENCE DI No. DOT No. / STB No. DOT No. CLK No. DOT No. DI2 1280~641 / STB2 1280~641 CLKIN2 1280~641 DI1 640~ / STB1 1 640~ Fig.1 !Pin assignments CONNECTOR A CONNECTOR B No. Circuit No. Circuit No. Circuit 1 VDD 11 / RESET 1 VH (COM) 2 VDD 12 START 2 VH (COM) 3 SEL2 13 DO1 3 VH (COM) 4 SEL1 14 DO2 4 GND 5 CLKIN2 (CP) 15 TM 5 GND 6 NC 16 TM 6 GND 7 DI2 17 / STB2 8 DI1 18 / STB1 9 INC 19 CLKOUT2 10 / LOAD 20 CLKIN1 1 CLKIN1 640~ 1 KF3004-GM50A Printhead !Characteristics Symbol Typical Unit - 108.416 mm Dot pitch - 0.0847 mm Total dot number - 1280 dots Parameter Effective printing width Average resistance value Rave 1250 Applied voltage VH 24 V Applied power PO 0.408 W/dot Print cycle SLT 0.41 ms Pulse width TON 0.260 ms Maximum number of dots energized simultaneously - 1280 dots Maximum clock frequency - 8 MHz Maximum roller diameter - 20.0 Running life / pulse life - 150/(1x10 ) km/pulses Operating temperature - 5~45 C mm 8 !Data sheets 1.6 SUPPLY ENERGY (Max.) (mJ/dot) OPTICAL DENSITY 0.7 SLT : 0.82ms/line 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 Level1 0.6 Level2 0.5 Level3 0.4 Level4 0.3 Level5 0.2 Level6 0.1 0.0 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 ENERGY (mJ/dot) SCANNING LINE TIME (ms) Fig.2 Representative density curve Fig.3 Maximum energy curve 1.1