SH2002-DC90A

SH2002-DC90A Printheads Near edge thermal printhead (8dots / mm) SH2002-DC90A SH-DC90 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. Applications Bar code printers Card printers Ticket printers General purpose compact printers Features 1) ROHM new technology “STEP FREE” structure will provide, high corrosion resistance, better resistance against scratching damage, high efficiency. 2) Inclined toward the printing surface to provide excellent printing quality even for cards and thick paper. 3) Prints directly on printing medium that cannot be bent. 4) Using a hard conductive film as a protective film on the heating element offers excellent resistance to electrostatic damage. 5) Compatible with the SH3002-DC90A (300dpi) in mechanical specifications, to facilitate the making of a series of printers. External dimensions (Unit : mm) DOT #448 (5) Max. 51 Max. 5 Pape r feed directi on 66±0.5 56 (EFFECTIVE PRINT WIDTH) 6±0.5 DOT #1 Max. 12 #2 #20 #4 #1 #1 φ3H10 EFFECTIVE DEPTH 3 #19 JST B4PS-VH HIROSE HIF3FC-20PA-2.54DS φ3H10 LENGTH 4 EFFECTIVE DEPTH 3 20.555±0.2 7.3±0.3 8±0.3 (13) 20±0.3 40±0.3 DOT #1 M3 EFFECTIVE DEPTH 3 Note: No heat history control function inside the thermal printhead. External heat history control is required for high speed printing. 25±0.5 (21.3) 1/5 SH2002-DC90A Printheads Characteristics Parameter Effective printing width Dot pitch Total dot number Average resistance value Applied voltage Applied power Print cycle Maximum number of dots energized simultaneously Maximum clock frequency Maximum roller diameter Running life / pulse life Operating temperature Symbol − − − Rave VH PO SLT − − − − − Typical 56 0.125 448 550 24 0.93 0.42 448 10 − 50 / 108 5 to 45 Unit mm mm dots Ω V W / dot ms dots MHz mm km / pulses °C Pin configuration HIROSE No. 1 3 5 7 9 11 13 15 17 19 Circuit VDD GND N.C. LA GND N.C. VDD STB1 TM SENS2 No. 2 4 6 8 10 12 14 16 18 20 Circuit BEO DI2 CLK GND DI1 GND STB2 TM SENS1 SENS3 JST No. 1 2 3 4 5 6 Circuit VH VH VH GND GND GND 2/5 SH2002-DC90A Printheads Timing chart t3 CLK t1 t2 DI BEO CLK t5 t4 LA t6 t7 STBn DRIVER OUT t8 t8 Fig.1 3/5 SH2002-DC90A Printheads Equivalent circuit DOT#448 VH (COM) 220µ F 35V #448 VDD 0.1µ F 50V #193 #192 #1 DOT#1 GND BEO /STB2 /STB1 /LAT LATCH REGISTER CLK DI2 DI1 SHIFT REGISTER SHIFT REGISTER SENS1 SENS2 SENS3 TM TM DI No. DI2 DI1 DOT No. 448 to 193 192 to 1 Fig. 2 STB No. STB 2 STB 1 DOT No. 448 to 193 192 to 1 4/5 SH2002-DC90A Printheads Electrical characteristics curves 1.5 1.4 SUPPLY ENERGY (MAX) (mJ / dot) 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 SCANNING LINE TIME (ms / line) RESISTANCE VALUE : (kΩ) 180 160 140 120 100 80 60 40 20 0 −10 0 10 20 30 40 R25=30kΩ B=3950k 1.2 OPTICAL DENSITY 1.0 0.8 0.6 0.4 0.2 0.0 0.060 0.100 0.150 0.200 0.250 50 60 70 ENERGY (mJ / dot) TEMPERATURE : (°C) Fig. 3 Representative density curve Fig. 4 Maximum energy curve Fig. 5 Thermistor curve 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