KD3002-DF10A
Printheads
Compact high speed thick film
thermal printhead (12 dots / mm)
KD3002-DF10A
Using its expertise in LSI technolo gy , R OHM has developed new high density driver ch ips for use in the KD3002-DF10A .
Capable of being employed for bot h thermal and therm al transfer pr inting, with a print speed of 20 0mm/s, the resulti ng
print heads are the fastest in their class. The high -spe ed and hi gh-d en sity prin ti ng answers the needs of ATM, kiosk and
ticket printing devices, which are increasingly being called upon to produce graphical output.
zApplications
Label printers
Ticket printers
T erminal printers
zFeatures
1) The use of a special partial glaze and the latest heating elemen t structure, along w ith new high-de nsity driver chip s 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 1000Ω ± 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 co mponents fo r printers.
4) 2-inch, 3-inch, 4-inch and 8-inch series are available.
zDimensions (Unit : mm)
54.208 (EFFECTIVE PRINT WIDTH)
DOT #640
Max. 20
2.6±0.1
NO. 15 NO. 1 NO. 1NO. 15
CONNECTOR B CONNECTOR A
2-M3 (EFFECTIVE DEPTH 3)
(10.2)
5±0.2
65
DOT #1
55±0.2
φ20.0
5.1±0.1
5.1±0.4
4±0.2
Rev.A 1/4
Printheads
zEquivalent circuit
KD3002-DF10A
VH
GND
VSF
VDD
STB4
STB3
DI2
DO2
TM
TM
CONNECTOR B CONNECTOR A
STB No.
1
2
3
4
Dot No.
1 ∼ 256
257 ∼ 384
385 ∼ 512
513 ∼ 640
DOT #640 DOT #1
L/S
LATCH REGISTER
SHIFT REGISTER SHIFT REGISTER
THERMISTOR
30kΩ B:3950
dots / STB
256
128
128
128
DI No.
1
2
12345
Dot No.
1 ∼ 384
385 ∼ 640
dots / STB
384
256
VH
GND
STB1
STB2
LAT
CLK
DO1
DI1
Fig.1
Rev.A 2/4
Printheads
zPin assignments
CONNECTOR A CONNECTOR B
No.
Circuit
1VH
2
3
4
5
6
7
8
9
10
11
12
13
14
15
VH
VH
VH
DI1
DO1
LAT
CLK
STB1
STB2
GND
GND
GND
GND
GND
zTiming chart
CLOCK (CLK)
No.
10
11
12
13
14
15
Circuit
1 GND
2
3
4
5
6
7
8
9
GND
GND
GND
STB3
STB4
V
DD
TM
TM
DO2
DI2
VSF
VH
VH
VH
KD3002-DF10A
tw CLK
t setup DI t hold DI
DATA IN (DI)
"High":BLACK
"Low" :WHITE
DATA OUT (DO)
"High":BLACK
"Low" :WHITE
LATCH (LAT)
"High":HOLD
"Low" :THROUGH
STROBE (STB)
DRIVER OUT
td DO
t setup LAT
tw LAT t setup STB
Fig.2
t hold LAT
tdo tdo
Rev.A 3/4
Printheads
zCharacteristics
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
zElectrical characteristic curves
0.8
0.7
0.6
0.5
mJ/dot)
0.4
0.3
ENERGY (
0.2
0.1
0
012345
SCANNING LINE TIME (
Paper : KF50-HDA (OJI)
ms/line)
Fig.3 Adaptive speed chart
180
160
140
120
100
80
60
RESISTANCE : (kΩ)
40
20
0
−20 −10 10 30 50 700204060
TEMPERATURE : (°C)
Fig.6 Thermistor curve
1.8
1.6
1.4
1.2
1.0
0.8
0.6
OPTICAL DENSITY
0.4
0.2
0.0
0.00 0.05 0.10 0.15 0.20 0.25 0.30
Fig.4 Representative density curve
Symbol Typical Unit
−
−
−
Rave
H
V
P
O
SLT
ON
T
−
−
−
−
−
ENERGY (
54.208
0.0847
640
1000
24
0.53
0.82
0.25
640
16
φ18.0
50/5×10
5 to 45
SLT : 0.82ms/line
mJ/dot)
7
mm
mm
dots
Ω
V
W/dot
ms
ms
dots
MHz
mm
km/pulses
°C
0.8
0.7
0.6
0.5
mJ/dot)
0.4
0.3
ENERGY (
0.2
0.1
0
KD3002-DF10A
012345
SCANNING LINE TIME (
Fig.5 Maximum energy curve
ms/line)
Rev.A 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 which 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.
It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance
of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow
for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in
order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM
cannot be held responsible for any damages arising from the use of the products under conditions out of the
range of the specifications or due to non-compliance with the NOTES specified in this catalog.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact your nearest sales office.
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Appendix1-Rev2.0
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