NF3004-VC20A Printheads For Color Photo Printers (300DPI ; dots / inch) NF3004-VC20A The NF3004-VC20 Series are suitable for small photo printers which can make direct print out from digital still cameras and mobile phones. ROHM’s energy saving technology enables battery drive, and high resolution printing quality. zApplications Home printers Mobile Photo printers Photo kiosk terminals “Print club” (color photo printer) terminals zFeatures 1) NF3004-VC20 is drivable with batteries, thanks to it’s low energy consumption. 2) NF3004-VC20 enables full color printing by keeping the adjacent resistance variation less than ±1.5%. 3) Employing of the driver IC capable of high-speed data transfer at 3.3 circuit supply voltage makes the gradation printing control easier. zExternal dimensions (Unit : mm) 114.2± 0.2 Dot #1280 (5.835) 108.16 CL Dot #1 Max.14 (3.02) 0 φ1 Note: No heat control function inside the thermal printhead. External heat history control is required for high speed printing. 1/4 NF3004-VC20A Printheads zEquivalent circuit DOT #1280 DOT #1 VH 0.47µF GND 128 1 ~ 256 129 ~ 384 257 ~ 512 385 ~ 640 513 ~ 768 641 ~ 896 769 ~ 1024 897 ~ 1152 1025 ~ ~ 1280 1153 VDD /STB2 /STB1 /LAT2 LATCH REGISTER 2 LATCH REGISTER 1 /LAT1 CLK1 CLK2 SHIFT REGISTER 10 DI 10 SHIFT REGISTER 9 SHIFT REGISTER 2 SHIFT REGISTER 1 DI 9 DI 8 DI 7 DI 6 To each Shift Register DI 5 DI 4 DI 3 DI 2 DI 1 THERMISTOR 10kΩ B3380K TM GND DI No. DOT No. DI No. DOT No. /STB No. DOT No. 10 1280 to 1153 5 640 to 513 2 1280 to 641 9 1152 to 1025 4 512 to 385 1 640 to 1 8 1024 to 897 3 384 to 257 7 896 to 769 2 256 to 129 6 768 to 641 1 128 to 1 Fig.1 2/4 NF3004-VC20A Printheads zPin assignments No. Circuit No. Circuit No. Circuit 1 GND 2 VH 3 VH 4 VH 5 GND 6 CLK 2 7 GND 8 /LAT 2 9 /STB 2 10 TM 11 DI 10 12 DI 9 13 DI 8 14 DI 7 15 DI 6 16 DI 5 17 DI 4 18 DI 3 19 DI 2 20 DI 1 21 VDD 22 /STB 1 23 /LAT 1 24 GND 25 CLK 1 26 GND 27 VH 28 VH 29 VH 30 GND zTiming chart tw CLK CLK (CLOCK) t setup DI t hold DI DI(DATA IN) "High" : BLACK "LOW" : WHITE t setup LAT t hold LAT LAT (LATCH) "High" : HOLD "LOW" : THROUGH tw LAT t setup STB STB (STROBE) tdo tdo DRIVER OUT Fig.2 3/4 NF3004-VC20A Printheads zCharacteristics Symbol Typical Unit Effective printing width − 108.16 mm Dot pitch − 0.0845 mm − 1280 dots Rave 2800 Ω Parameter Total dot number Average resistance value Applied voltage VH 13.3 V Applied power PO 0.061 W/dot Print cycle SLT 4.5 ms/line Pulse width TON 2.25 ms Maximum number of dots energized simultaneously − 640 dots Maximum clock frequency − 16 MHz Maximum rolls diameter − 10 mm Running life / pulse life − 2/5×107 km/pulses Operating temperature − 5 to 45 °C zElectorical characteristics 1.8 50 45 40 RESISTANCE (kΩ) OPTICAL DENSITY 1.5 1.2 0.9 0.6 35 30 25 20 15 10 0.3 5 0.0 0.03 0.08 0.13 ENERGY (mJ / dot) Fig. 3 Representative density curve 0 −20 0 20 40 60 80 TEMPERATURE (°C) Fig. 4 Thermistor curve Note ) Direct Thermal Printing (KPT210 OJI) 4/4 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.1