SH2004-DC70A Printheads Near edge thermal printhead (with thermal historical control) SH2004-DC70A SH-DC70 series was developed with two key structures step-free and near edge for the packaging printer market which requires high speed continuous printing. It is suitable for printers in factory line where high speed 24 hours continuous printing is required. zApplications Bar code printer Label printer Packaging printer ATM Ticket printer zFeatures 1) ROHM new technology “STEP FREE” structure will provide, high corrosion resistance, better resistance against scratching damage, high efficiency. 2) Head inclination by near-edge structure, applicable to the large-size platen. Resin type thermal-transfer ink-ribbon can be used. 3) High-hardness protect cote type “W-coat” is employed with 150km abrasion life-time. 4) A built in history-control functionality, high-speed printing up to 300mm / s can be achieved with clear print image. zExternal dimensions (Unit : mm) DOT No.1 124±0.5 104 6±0.5 MAX.56 Print Directio n (10) (Effective print width) Max.5.5 Max.12 5.7° (Ty p.) #2 #1 Type of PRINTHEAD #20 CONNECTOR:A #19 #6 #1 CONNECTOR:B 3-M3 Effective Depth 3 100±0.2 (21.2) 20.45±0.2 2.8±0.2 31.0±0.5 (43) φ3 H10 Effective Depth 3 7.3±0.3 10±0.2 (12±0.3) 40±0.3 80±0.3 φ3 H10 Length 4 Effective Depth 3 DOT No.1 1/3 SH2004-DC70A Printheads zEquivalent circuit DOT #832 VH (COM) DOT #1 220µF 35V GND 0.1µF 50V VDD (+5) / STB2 / STB1 BEO / RESET LATCH REGISTER CLK (CP) DI / LOAD START TO EACH IC INC SEL2 SEL1 TM THERMISTOR 30kΩ B: 3950 TM DI No. DOT No. / STB No. DOT No. DI2 832 to 449 / STB2 832 to 449 DI1 448 to / STB1 448 to 1 1 zPin assignments CONNECTOR A CONNECTOR B Circuit No. Circuit No. Circuit No. Circuit 1 VDD 2 BEO 1 VH (COM) 2 VH (COM) 3 GND 4 DI2 3 VH (COM) 4 GND 5 GND 6 GND No. 5 GND 6 CLK(CP) 7 /LOAD 8 START 9 INC 10 DI1 11 SEL2 12 SEL1 13 /RESET 14 / STB 2 15 / STB 1 16 TM 17 TM 18 SENS1 19 SENS2 20 SENS3 2/3 SH2004-DC70A Printheads zCharacteristics Parameter Symbol Typical Unit − 104.0 mm Dot pitch − 0.125 mm Total dot number − 832 dots Rave 550 Ω Effective printing width Average resistance value Applied voltage VH 24 V Applied power PO 0.86 W/dot SLT 0.49 ms − 832 dots Print cycle Maximum number of dots energized simultaneously Maximum clock frequency − 8 MHz Maximum roller diameter − φ50 mm Running life / pulse life − 150/(1×108) km/pulses Operating temperature − 5 to 45 °C 3/3 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