KF2004-GM50A Printheads Thick film thermal printhead (with thermal historical control) KF2004-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 convertional 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 250mm / 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 15±0.3 0 #2 #20 #6 #19 #1 CONNECTOR A CONNECTOR B #1 φ3H10 Length 4 (Effective Depth 3) φ3H10 (Effective Depth 3) 17.8±0.2 7.3±0.3 Max.12 Max.5.5 15.3±0.3 φ2 (20.8) 25±0.5 95±0.3 (3) Max.36 Max.45 40±0.3 Dot #1 Dot #832 (19) 12±0.2 (5) 104 (Effective Print Width) (7) 80±0.3 6.1±0.4 KF2004-GM50A Printheads !Equivalent circuit DOT #832 VH (COM) DOT #1 100µF×2 35V GND 0.1µF 50V VDD (+5) / STB2 / STB1 / RESET LATCH REGISTER CLKIN2 DI2 DO2 CLKOUT2 CLKIN1 DI1 DO1 / LOAD START TO EACH IC INC SEL2 SEL1 TM THERMISTER 30kΩ B: 3950 TM DI, STB DIVISION DOT No. CORRESPONDENCE DI No. DOT No. / STB No. DOT No. DI2 832 ∼ 449 / STB2 832 ∼ 449 DI1 448 ∼ 1 / STB1 448 ∼ 1 CLK No. DOT No. CLKIN2 832 ∼ 449 CLKIN1 448 ∼ 1 KF2004-GM50A Printheads !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 !Characteristics Parameter Symbol Typical Unit Effective printing width − 104 mm Dot pitch − 0.125 mm − 832 dots Rave 550 Ω VH 24 V Total dot number Average resistance value Applied voltage Applied power PO 0.857 W/dot Print cycle SLT 0.490 ms Pulse width TON 0.258 ms Maximum number of dots energized simultaneously − 832 dots Maximum clock frequency − 8 MHz Maximum roller diameter − φ20.0 Running life / pulse life − 150/(1×10 ) km/pulses Operating temperature − 5~45 °C mm 8 !Data sheets 1.6 1.0 SLT : 0.82ms / line MAXIMUM ENERGY (mJ/dot) OPTICAL DENSITY Level1 0.9 1.4 1.2 1.0 0.8 0.6 0.4 0.2 Level2 0.8 Level3 0.7 0.6 0.5 Level4 0.4 Level5 0.3 Level6 0.2 0.1 0 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.0 0 0.2 0.4 0.6 0.8 1.0 1.2 ENERGY (mJ/dot) SCANNING LINE TIME (ms/line) Fig.2 Representative density curve Fig.3 Maximum energy curve 1.4