KD2003-DG10A
Printheads
Compact high speed thick film
thermal printhead (8dots / mm)
KD2003-DG10A
Using its expertise in LSI technology, ROHM has developed new high density driver chips for use in the KD2003-DG10A .
Capable of being employed for bot h thermal and therm al transfer pr inting, with a print speed of 25 0mm/s, the resulti ng
printheads 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.
zApplications
Label printers
Ticket printers
POS printers
ATM printers
KIOSK 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 250mm/s, the fastest in its class.
2) One rank resistance value of 650Ω ± 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 and 4-inch series are available.
zExternal dimensions (Unit : mm)
Max.18
80 (Effective Print Width)
Dot #640
2.6±0.1
No.28 No.1
2-M3 (Effective Depth 3)
91±0.3
Connector
81±0.2
Max.1.7
(5.1)
Dot #1
MAX. φ20.0
Exposed Conductor Side
5±0.2
Insert Direction
5.1±0.1
10.2
1/4
Printheads
zEquivalent circuit
VH
GND
VSF
VDD
1,2,3,4
7-11,19-22
L/S
15
DOT #640 DOT #1
5
1234
KD2003-DG10A
STB2
STB1
LAT
CLK
DI2
DO2
DI1
DO1
TM
TM
zPin assignments
No.
10
11
12
13
14
Circuit
1VH
2
3
4
5
6
7
8
9
VH
VH
VH
DO1
DI1
GND
GND
GND
GND
GND
STB1
CLK
LAT
18
12
14
13
24
23
6
5
16
17
SHIFT REGISTER 2 SHIFT REGISTER 1
No.
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Circuit
V
TM
TM
STB2
GND
GND
GND
GND
DO2
DI2
VSF
VH
VH
VH
THERMISTOR
Fig.1
DD
LATCH REGISTER
2/4
Printheads
zTiming chart
CLOCK (CLK)
DATA IN (DI)
"High":BLACK
"Low" :WHITE
DATA OUT (DO)
"High":BLACK
"Low" :WHITE
LATCH (LAT)
"High":HOLD
"Low" :THROUGH
STROBE (STB)
DRIVER OUT
tw CLK
t setup DI t hold DI
td DO
t setup LAT
tw LAT t setup STB
KD2003-DG10A
t hold LAT
tdo tdo
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
Fig.2
Symbol Typical Unit
−
−
−
Rave
H
V
P
O
SLT
ON
T
−
−
−
−
−
80
0.125
640
650
24
0.74
0.5
0.2
640
16
φ20.0
50/5×10
5 to 45
7
mm
mm
dots
Ω
V
W/dot
ms
ms
dots
MHz
mm
km/pulses
°C
3/4
Printheads
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 (
Fig.3 Adaptive speed chart
180
160
140
120
100
80
60
RESISTANCE : (kΩ)
40
20
0
−20 −10 10 30 50 700204060
Fig.6 Thermistor curve
Paper : KF50-HDA (OJI)
ms/line)
TEMPERATURE : (°C)
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
ENERGY (
Fig.4 Representative density curve
SLT : 0.620ms/line
mJ/dot)
KD2003-DG10A
0.8
0.7
0.6
0.5
mJ/dot)
0.4
0.3
ENERGY (
0.2
0.1
0
012345
SCANNING LINE TIME (
Fig.5 Maximum energy curve
ms/line)
4/4
Appendix
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.
Notes
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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