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KD3008-DF10A
Printheads
Thick film thermal printhead (11.8 dots / mm)
KD3008-DF10A
Using its expertise in LSI technology, ROHM has developed new high density driver chips for use in the KD3008-DF10A . Capable of being employed for both thermal and thermal transfer printing, with a print speed of 200mm/s, the resulting print heads are the fastest in their class. The high-speed and high-density printing answers the needs of ATM, kiosk and ticket printing devices, which are increasingly being called upon to produce graphical output. Applications Label printers Ticket printers Terminal printers Features 1) The use of a special partial glaze and the latest heating element structure, along with new high-density driver chips that can accept big current, has allowed ROHM to achieve print speeds of 200mm/s with using thermal history control, the fastest in its class. 2) One rank resistance value of 1000 3% eliminates the inconvenience of rank selection. 3) The required driving voltage of 3.15 to 5.25V allows wide range of power supply voltage setting. This also allows multiple choice of electronic components for printers. 4) 2-inch, 3-inch, 4-inch and 8-inch series are available. Dimensions (Unit : mm)
230.50.3 (HEATSINK WIDTH) 230 (SUBSTRATE WIDTH) 216.832 (EFFECTIVE PRINT WIDTH)
Dot #2560 CL
Dot #1
MAX.20.1
RESIN COATING FOR PROTECTION IC
No.15 CONNECTOR.B
No.1
No.15 CONNECTOR.A
No.1
5.10.2
50.2 2-M3 (EFFECTIVE DEPTH 3)
220.50.2
CENTER OF HEAT ELEMENT
(10.2)
2.60.1
1/4
KD3008-DF10A
Printheads
Equivalent circuit
VH DOT #2560 DOT #1 VH
VSF
L/S
#2560
#1921 #1920
#1281 #1280
#641 #640
#1
Vdd STB4 STB3 GND STB1 STB2 GND
LATCH REGISTER DI2 DO2
/LAT CLK DO1 DI1
SHIFT REGISTER
SHIFT REGISTER
TM TM
THERMISTOR 30k B:3950K
CONNECTOR B
CONNECTOR A
STB No. 1 2 3 4
Dot No. 1 to 640 641 to 1280 1281 to 1920 1921 to 2560
Dots / STB. 640 640 640 640
DI No. 1 2
Dot No. 1 to 1280 1281 to 2560
Dots / DI 1280 1280
Fig.1
2/4
KD3008-DF10A
Printheads
Pin assignments
CONNECTOR A No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Circuit VH VH VH VH DI1 DO1 /LAT CLK STB1 STB2 GND GND GND GND GND CONNECTOR B No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Circuit GND GND GND GND STB3 STB4 VDD TM TM DO2 DI2 VSF VH VH VH
Timing chart
tw CLK CLK (CLOCK)
t set up DI DI (DATA IN) "High":BLACK "Low":WHITE
t hold DI
td DO DO (DATA OUT) "High":BLACK "Low":WHITE t set up LAT / LAT (LATCH) "High":HOLD "Low":THROUGH tw LAT t set up STB min.10s
t hold LAT
STB (STROBE) t do DRIVER OUT t do
If delay time for Driver Out can not be secured enough, there is a possibility that VH would fluctuate greatly. Please design the circuit so that VH does not exceed peak voltage (Vp).
Fig.2
3/4
KD3008-DF10A
Printheads
Characteristics
Parameter Effective printing width Dot pitch Total dot number Average resistance value Applied voltage Applied power Print cycle Pulse width Maximum number of dots energized simultaneously Maximum clock frequency Maximum roller diameter Running life / pulse life Operating temperature Symbol - - - Rave VH PO SLT TON - - - - - Typical 216.832 0.0847 2560 1000 24.0 0.36 0.83 0.34 1280 16 20.0 50 / 1x108 5 to 45 Unit mm mm dots V W / dot ms ms dots MHz mm km / pulses
C
Electrical characteristic curves
0.8 Paper : KF50-HDA (OJI) 0.7
1.8 1.6 1.4
OPTICAL DENSITY
SLT : 0.82ms/line
0.6
ENERGY (mJ/dot)
0.5 0.4 0.3 0.2 0.1 0 0 1 2 3 4 5
1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.00 0.05 0.10 0.15 0.20 0.25 0.30
SCANNING LINE TIME (ms/line)
ENERGY (mJ/dot)
Fig.3 Adaptive speed chart
Fig.4 Representative density curve
0.8 0.7 0.6
180 160 140 RESISTANCE : (k)
1 2 3 4 5
ENERGY (mJ/dot)
0.5 0.4 0.3 0.2 0.1 0 0
120 100 80 60 40 20 0 -20 -10 0 10 20 30 40 50 60 70
SCANNING LINE TIME (ms/line)
TEMPERATURE : (C)
Fig.5 Maximum energy curve
Fig.6 Thermistor curve
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 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

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