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KA2008-AF10A
Printheads
Thick film thermal printhead (8dots / mm)
KA2008-AF10A
The KA2008-AF10A is a standard type A4-size thick-film thermal printhead, developed mainly for facsimiles.
Applications Facsimiles Electric whiteboard Measuring terminal printers
Features 1) Providing easy design solution of power supply with the same bit number for each strobe at A4 size FAX application by employing the first in the industry 216 bits Driver IC. 2) Achieved Logic voltage of 3.13 to 5.25V and provides the wide range of power supply voltage. Wide selection of electrical components is able to choose. 3) Employment of ROHM's own technology clip connector makes it possible to supply the goods without heat sink and substrate it self. This allows wide range of designing since substrate could be directly attached to the mechanism.
External dimensions (Unit : mm)
230.50.3 (HEATSINK WIDTH) 230 (SUBSTRATE WIDTH)
15.11
MAX 8.5 5.850.3 Dot #1 4.850.2
216 (EFFECTIVE PRINT WIDTH) Dot #1728
160.2
No.9
RESIN COATING FOR PROTECTION OF PIN. RESIN COATING FOR PROTECTION OF IC.
No.1 CONNECTOR B
No.9 CONNECTOR A
No.1
CENTER OF HEAT ELEMENTS
4.60.2
11.50.1 50.2 220.50.2
11.50.1 4-M3
2.60.1
MAX
. 14
.0
LABEL
1/4
KA2008-AF10A
Printheads
Equivalent circuit
VH GND 8,9 1,2 DOT #1728 DOT #1 1,2 8,9 VH GND
12 STB4 STB3 5 6
9
4
1 6 STB1 5 STB2
4 LATCH REGISTER DI V DD 7 SHIFT REGISTER 4 7 THERMISTOR 30k B:3950 CONNECTOR B The STB terminals are pulled up inside the IC. CONNECTOR A 3 LAT CLK
TM
3
TM
Fig.1
Pin assignments
CONNECTOR B No. 1 2 3 4 5 6 7 8 9 Circuit GND GND TM VDD STB4 STB3 DI VH VH CONNECTOR A No. 1 2 3 4 5 6 7 8 9 Circuit VH VH CLK LAT STB2 STB1 TM GND GND
2/4
KA2008-AF10A
Printheads
Timing chart
tw CLK CLOCK (CLK)
t setup DI DATA IN (DI) "High":BLACK "Low":WHITE
t hold DI
t setup LAT LATCH (LAT) "High":HOLD "Low":THROUGH tw LAT STROBE (STB)
t hold LAT
t setup STB
tdo DRIVER OUT
tdo
Fig.2
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 216.0 0.125 1728 3000 24.0 0.17 10 1.95 432 4 14.0 30/3x10 5~45
7
Unit mm mm dots V W/dot ms ms dots MHz mm km/pulses C
3/4
KA2008-AF10A
Printheads
Electrical characteristic curves
0.5 0.45 0.4
OPTICAL DENSITY
1.4 1.2
SLT : 10ms/line
1 0.9 0.8
ENERGY (mJ / dot)
ENERGY (mJ / dot)
0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 4 6 8 10 12 14 16 18 20 22
1 0.8 0.6 0.4 0.2 0 0
0.7 0.6 0.5 0.4 0.3 0.2 0.1
0.1
0.2
0.3
0.4
0.5
0 0
5
10
15
20
SCANNING LINE TIME (ms / line)
ENERGY (mJ / dot)
SCANNING LINE TIME (ms / line)
Fig.3 Adaptive speed chart
Fig.4 Representative density curve
Fig.5 Maximum energy curve
180 160 140
RESISTANCE : (k)
120 100 80 60 40 20 0 -20 -10 0 10 20 30 40 50 60 70
TEMPERATURE : (C)
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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