KF2002-GM50A Printheads Thick film thermal printhead (with thermal historical control) KF2002-GM50A GM50 series is the new product that newly added the future history control and driver LSI which has the function of thermal historical control, to GL50 series which is employing the convertional thick-film fast response thermal element. !Applications High speed label printer High speed bar code printer High speed ticket printer Various high speed terminal printers !Features 1) Newly developed thick-film fast response thermal element and driver LSI with the function of thermal history control which is added the future history control are employed for this series. It is possible to print with super high speed of 10 inches / s or 250mm / s. 2) 150km life realized by attributing durable new protection film. 3) New partial glaze construction makes it compatible with the thermal transfer application. 4) Market-proven G-series printhead construction ensures high reliability. !External dimensions (Units : mm) LABEL 56 (Effective Print Width) 25±0.5 Dot #1 0±0.2 DOT #448 55.5±0.3 55±0.3 28±0.3 56±0.3 φ3H10 (Effective Depth 3) #2 #1 CONNECTOR A #20 #4 #1 #19 CONNECTOR B 17.8±0.2 7.3±0.3 Max.12 Max.5.5 15.3±0.3 φ2 0 (3) Max.36 Max.45 (5) f3H10 Length 4 (Effective Depth 3) (20.8) (4.5) Dot #448 3-M3(Effective Depth 3) 6.1±0.4 65 KF2002-GM50A Printheads !Equivalent circuit DOT #448 VH (COM) DOT #1 220µF 35V GND 0.1µF 50V VDD (+5) / STB2 / STB1 / RESET LATCH REGISTER CLK (CP) DI D0 / LOAD START TO EACH IC INC SEL2 SEL1 TM THERMISTOR 30kΩ B: 3950 TM DI, STB DIVISION DOT No. CORRESPONDENCE DI No. DOT No. / STB No. DI 448 ∼ 1 / STB2 448 ∼ 193 / STB1 192 ∼ !Pin assignments CONNECTOR A CONNECTOR B No. Circuit No. Circuit No. Circuit 1 VDD 11 / RESET 1 VH (COM) 2 VDD 12 START 2 VH (COM) 3 SEL2 13 DO 3 GND 4 SEL1 14 NC 4 GND 5 CLK (CP) 15 TM 6 NC 16 TM 7 DI 17 / STB 2 8 NC 18 / STB 1 9 INC 19 NC 10 / LOAD 20 NC DOT No. 1 KF2002-GM50A Printheads !Characteristics Symbol Typical Unit − 56 mm Dot pitch − 0.125 mm Total dot number − 448 dots Ω Parameter Effective printing width Average resistance value Rave 550 Applied voltage VH 24 V Applied power PO 0.929 W/dot Print cycle SLT 0.490 ms Pulse width TON 0.238 ms Maximum number of dots energized simultaneously − 448 dots Maximum clock frequency − 8 MHz Maximum roller diameter − φ20.0 Running life / pulse life − 150/(1×10 ) km/pulses Operating temperature − 5~45 °C mm 8 !Data sheets 1.6 1.0 SLT : 0.82ms / line 0.9 MAXIMUM ENERGY (mJ/dot) OPTICAL DENSITY 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.8 0.7 0.6 Level1 0.5 Level2 0.4 Level3 0.3 0.2 0.1 0 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.0 0 Level4 Level5 Level6 0.2 0.4 0.6 0.8 1.0 1.2 ENERGY (mJ/dot) SCANNING LINE TIME (ms/line) Fig.2 Representative density curve Fig.3 Maximum energy curve 1.4 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 use silicon as a basic material. 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-Rev1.0