SE2004-DC94A Printheads Hight Speed Thermal Printhead (8dots / mm) SE2004-DC94A 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*-DC94A 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) Anti Sticking Treatment reduces sticking problems and achieves high print quality at any environmental conditions. 2) ROHM new technology “STEP FREE” structure will provide, high corrosion resistance, better resistance against scratching damage, high efficiency. 3) Standard glazed components to accommodate thick paper. 4) Using a hard conductive film as a protective film on the heating element offers excellent resistance to electrostatic damage. 5) Compatible with the SE3004-DC94A (300dpi) in mechanical specifications, to facilitate the making of a series of printers. zDimensions (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. 1/4 SE2004-DC94A Printheads zEquivalent circuit DOT #896 VH(COM) DOT #1 VDD 0.1µF 50V #896 #449 #448 #1 GND BEO / STB2 / STB1 / LAT LATCH REGISTER CLK DI2 DI1 SHIFT REGISTER SHIFT REGISTER SENS1 SENS2 SENS3 TM TM CONNECTOR DOT No. DI No. STB No. DOT No. DI2 896 to 449 / STB2 896 to 449 DI1 448 to / STB1 448 to 1 1 zPin configuration HIROSE No. Circuit No. Circuit JST No. Circuit 1 GND 2 VDD 1 COM 3 DI2 4 CLK(CP) 2 COM 5 /LAT 6 /STB2 3 COM 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 2/4 SE2004-DC94A Printheads zTiming chart Min.45ns CLK Min.30ns Min.10ns DI (DATA IN) BEO Min.100ns Min.50ns Min.12.5µs /LAT (LATCH) Min.100ns Min.300ns /STB (STROBE) Max.12.5µs Max.12.5µs DRIVER OUT zCharacteristics Parameter Symbol Typical Unit Effective printing width − 112 mm Dot pitch − 0.125 mm Total dot number Average resistance value Applied voltage Applied power − 896 dots Rave 550 Ω VH 24 V PO 0.91 W/dot SLT 0.42 ms 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 Print cycle 3/4 SE2004-DC94A 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. 1 Representative density curve Fig. 2 Maximum energy curve Fig. 3 Thermistor curve 70 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 which 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. It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the NOTES specified in this catalog. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact your nearest sales office. ROHM Customer Support System www.rohm.com Copyright © 2008 ROHM CO.,LTD. THE AMERICAS / EUROPE / ASIA / JAPAN Contact us : webmaster@ rohm.co. jp 21 Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan TEL : +81-75-311-2121 FAX : +81-75-315-0172 Appendix1-Rev2.0