1/3 www.rohm.com c 2009 rohm co., ltd. all rights reserved. 2009.02 - rev.a near edge type thermal printhead(11.81dots / mm) SH3002-DC90A sh-dc90 series achieves high quality print and high reliability, by rohm unique step free technology. sh-dc90 series is near edge type thermal hea d, whose heater line is fo rmed at the angle of the gl aze. therefore, peeling-off ribbon at the hot state and large size plat en can be used with this thermal head and is best suitable for the packaging printer market which requires the cont inuous print at high speed. z applications barcode label printers packaging printers ticket printers general purpose portable printers z features 1) rohm unique ?step free? structure contributes to better anti-corrosion characteristics, less scratch break down, and better heat efficiency. 2) thermal head contacts with the media by angle at the print, so that good print quality can be obtained for the thick media. 3) it has good anti-esd characteristic by applying hard, con ductive layer as the heat element protective coating. 4) mounting space can be minimized, which cont ributes to the downsizing of the printer. z dimensions (unit : mm) max. 5.5 paper feed direction max. 12 6 0.5 66 0.5 (5.896) max. 56 dot no.640 dot no.1 #2 #20 #19 #1 #4 #1 40 0.3 20 0.3 effective depth 3 3h10 length 4 effective depth 3 7.3 0.3 24.35 0.3 7.104 0.3 (13) 3h10 effective depth 3 31.0 0.5 54.208 connector a connector b 3.0 (typ.)
SH3002-DC90A data sheet 2/3 www.rohm.com c 2009 rohm co., ltd. all rights reserved. 2009.02 - rev.a z equivalent circuit dot#1 dot#640 v h(com) 0.1 f 50v v dd gnd beo /stb2 /stb1 /lat clk sens1 di2 di1 sens2 sens3 tm tm shift register latch register shift register #640 #321 #320 #1 thermistor 30k ? b:3950k connector di no. di2 /stb 2 /stb 1 640 to 321 320 to 1 dot no. 640 to 321 di1 320 to 1 stb no. dot no. z pin configuration 1 gnd v dd n.c. lat n.c. n.c. v dd stb1 tm sens2 di2 beo clk n.c. di1 gnd stb2 tm sens1 sens3 3 5 7 9 11 13 15 17 19 2 4 6 8 10 12 14 16 18 20 circuit no. 1 vh gnd vh gnd 2 3 4 circuit no. no. circuit h irose jst
SH3002-DC90A data sheet 3/3 www.rohm.com c 2009 rohm co., ltd. all rights reserved. 2009.02 - rev.a z timing chart c lk d i ( data in) beo driver out min.45ns min.30ns min.10ns /lat (latch) min.100ns min.50ns min.100ns min.300ns min.12.5 s /stb (strobe) max.12.5 s max.12.5 s z characteristics operating temperature running life / pulse life maximum roller diameter maximum clock frequency maximum number of dots energized simultaneously print cycle applied power applied voltage average resistance value total dot number effective printing width parameter rave v h p o slt 54.208 0.0847 640 850 24 0.59 0.28 640 10 150 / 1x10 8 5 to 45 ? ? ? ? ? ? ? ? mm mm dots ? v w / dot ms dots mhz mm km / pulses c symbol typical unit dot pitch 50
appendix-rev4.1 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 the americas / europe / asia / japan contact us : webmaster@ rohm.co. jp www.rohm.com copyright ? 2009 rohm co.,ltd. 21 saiin mizosaki- cho, ukyo-ku, kyoto 615-8585, japan tel : +81-75-311-2121 fax : +81-75-315-0172 appendix notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specified herein is subject to change for improvement without notice. the content specified herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specifications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when de signing circuits for mass production. great care was taken in ensuring the accuracy of the information specified in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no re- sponsibility for such damage. the technical information specified herein is intended only to show the typical functions of and examples of application circuits for the products. rohm does not grant you, explicitly or implicitly, any license to use or exer cise intellectual property or other rights held by rohm and other parties. rohm shall bear no re- sponsibility whatsoever for any dispute arising from the use of such technical information. the products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, elec- tronic ap pliances and amusement devices). the products are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possi bility of physical injury, fire or any other damage caused in the event of the failure of any product, such as derating, redundancy, fire control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which re quires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intend- ed to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specified herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law.
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