SE2004-DC90A Printheads Hight Speed Thermal Printhead (8dots / mm) SE2004-DC90A High speed, high quality, and high durability are achieved by using step free structure with high performance partial glaze and highly conductive overcoat layer. SE200*-DC90A series are lined up which can accommodate with all types of barcode labeling printers from Direct to Thermal Transfer, normal to high speed (over 300mm/s). zApplications Bar code label printers Ticket printers General purpose compact printers zFeatures 1) ROHM new technology “STEP FREE” structure will provide, high corrosion resistance, better resistance against scratching damage, high efficiency. 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 300dpi in mechanical specifications, to facilitate the making of a series of printers. zExternal dimensions (Unit : mm) DOT No.1 6±0.2 (26) Min. 4.3 (3.5) (6) Max. 48 Max.φ20 124±0.5 112 Max.5 #2 TYPE OF PRINTHEAD #26 #6 #25 JST B6PS-VH #1 HIROSE HIF3FC-26PA-2.54DS Max.10 #1 3-M3 EFFECTIVE DEPTH 3 100±0.2 2.8±0.2 7.3±0.3 17.8±0.2 (21.3) 25±0.5 (36) 10±0.2 16±0.2 φ3 H10 EFFECTIVE DEPTH 3 φ3 H10 LENGTH 4 EFFECTIVE DEPTH 3 40±0.3 (22) 80±0.3 DOT No.1 Note: No heat history control function inside the thermal printhead. External heat history control is required for high speed printing. 1/5 SE2004-DC90A Printheads zCharacteristics Parameter Symbol Effective printing width Applied power Print cycle 112 mm mm 896 dots Rave 550 Ω VH 24 V PO 0.91 W/dot SLT 0.42 ms Total dot number Applied voltage Unit 0.125 Dot pitch Average resistance value Typical Maximum number of dots energized simultaneously 896 dots Maximum clock frequency 10 MHz Maximum roller diameter 20 mm Running life / pulse life 50 / 1×10 8 km / pulses Operating temperature 5 to 45 °C zPin configuration No. Circuit JST No. Circuit GND 2 VDD 1 COM 3 DI2 4 CLK(CP) 2 COM 5 /LAT 6 /STB2 3 COM HIROSE No. Circuit 1 7 NC 8 DI1 4 GND 9 /STB1 10 NC 5 GND 11 TM 12 TM 6 GND 13 SENS3 14 SENS2 15 SENS1 16 BEO 17 NC 18 NC 19 NC 20 NC 21 NC 22 NC 23 NC 24 NC 25 NC 26 NC 2/5 SE2004-DC90A Printheads zTiming chart Min.45ns CLK Min.30ns Min.10ns DI BEO CLK Min.100ns Min.50ns /LAT Min.100ns Min.300ns /STBn DRIVER OUT Max.12.5µs Max.12.5µs Fig.1 3/5 SE2004-DC90A Printheads zEquivalent circuit DOT 896 DOT 1 VH GND BEO /STB2 /STB1 /LAT LATCH 896 641 640 449 448 193 192 1 DI 2 DI 1 CLK Vdd 0.1µF 50V GND TM TM DI No. DOT No. /STR No. DOT No. DI 2 896∼449 /STB2 896∼449 DI 1 448∼ 1 /STB1 448∼ 1 Fig.2 4/5 SE2004-DC90A Printheads zData sheet OPTICAL DENSITY 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.10 0.15 0.20 0.25 0.30 0.32 0.50 180 0.45 160 RESISTANCE VALUE :(kΩ) SUPPLY ENERGY(MAX) (mJ / dot) 1.5 1.4 0.40 0.35 0.30 0.25 0.20 0.15 0.10 R25=30kΩ B=3950k 140 120 100 80 60 40 20 0.05 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 0 -10 0 10 20 30 40 50 60 ENERGY(mJ / dot) SCANNING LINE TIME(ms / line) TEMPERATURE : (°C) Fig. 3 Representative density curve Fig. 4 Maximum energy curve Fig. 5 Thermistor curve 70 5/5 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