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| NF3004-VA20A Printheads Hight Speed Thermal Printhead (300DPI ; dots / inch) NF3004-VA20A The NF3004-VA20A is a flat thin film thermal printhead that supports medium speed and high speed printing, suited for general purpose compact printers as well as label printers. !Applications High definition bar code label printers High definition ticket printers General purpose compact printers !Features 1) High definition of 300 dots / inch. 2) Standard glazed components to accommodate thick paper. 3) High speed clock to facilitate external heat history control. 4) Using a hard conductive film as a protective film on the heating element offers excellent resistance to electrostatic damage. 5) Compatible with the NF2004-VA20A (8dots / mm) in mechanical specifications, to facilitate the making of a series of printers. !External dimensions (Units : mm) DOT No.1 1240.5 108.4 Max.20 60.2 (7.792) Max. 48 (3.5) Min. 4.3 Max.5 #2 #26 #6 #1 TYPE OF PRINTHEAD #1 #25 JST B6PS-VH 3-M3 EFFECTIVE DEPTH 3 HIROSE HIF3FC-26PA-2.54DS 1000.2 (36) 250.5 2.80.2 7.30.3 17.80.2 100.2 3 H10 EFFECTIVE DEPTH 3 14.2080.2 400.3 3 H10 LENGTH 4 EFFECTIVE DEPTH 3 (22) 800.3 DOT No.1 Note: No heat history control function inside the thermal printhead. External heat history control is required for high speed printing. (21.3) (26) Max.10 NF3004-VA20A Printheads !Characteristics Parameter 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 Symbol Rave VH PO SLT TON Typical 108.4 0.0847 1280 1250 24 0.41 0.83 0.28 1280 10 20 50 / 10 60 8 Unit mm mm dots V W / dot ms ms dots MHz mm km / pulses C !Pin configuration HIROSE No. 1 3 5 7 9 11 13 15 17 19 21 23 25 Circuit GND DI 2 /LAT NC /STB 1 TM SENS 3 SENS 1 NC NC NC NC NC No. 2 4 6 8 10 12 14 16 18 20 22 24 26 Circuit VDD CLK (CP) /STB 2 DI 1 NC TM SENS 2 BEO NC NC NC NC NC JST No. 1 2 3 4 5 6 Circuit COM COM COM GND GND GND NF3004-VA20A Printheads !Taiming chart Min. 45ns CLK Min. 30ns Min. 10ns DI BEO CLK Min. 100ns Min. 50ns /LAT Min. 100ns Min. 300ns /STBn DRIVER OUT Max. 12.5s Max. 12.5s Fig.1 NF3004-VA20A Printheads !Equivalent circuit DOT #1280 DOT #1 VH GND BED /STB2 /STB1 /LAT LATCH 1280 961 960 641 640 321 320 1 DI 2 DI 1 CLK VDD 0.1F 50V GND TM TM DI No. DI 2 DI 1 DOT No. 1280~641 640~1 /STB No. /STB2 /STB1 DOT No. 1280~641 640~1 Fig.2 NF3004-VA20A Printheads !Adaptation speed chart Inch / second [IPS] 0 1 2 3 4 5 6 7 8 9 10 OVER Without external heat history control With external heat history control !Data sheet SUPPLY ENERGY (MAX) (mJ / dot) 1.5 1.4 1.2 OPTICAL DENSITY 0.24 0.22 0.20 0.18 0.16 0.14 0.12 0.10 0.08 0.06 0.04 0.02 0.00 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 SCANNING LINE TIME (ms / line) RESISTANCE VALUE : (k) 180 160 140 120 100 80 60 40 20 0 -10 0 10 20 30 40 R25=30k B=3950k 1.0 0.8 0.6 0.4 0.2 0.0 0.050 0.075 0.100 0.125 50 60 70 ENERGY (mJ / dot) TEMPERATURE : (C) Fig. 3 Representative density curve Fig. 4 Maximum energy curve Fig. 5 Thermistor curve |
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