KD3008-DF54A
Printheads
High speed thick film thermal printhead
(11.8 dots / mm)
KD3008-DF54A
Using its expertise in LSI technology, ROHM has developed new high density driver chips for use in the KD3008-DF54A.
Capable of being employed for bot h thermal and therm al transfer pr inting, with a print speed of 10 0mm/s, the resulti ng
print heads are the fastest in their class. The high-speed and high-density printing answers the needs of POS, ATM,
KIOSK, and ticket printing devices, which are increasingly being called upon to produce graphical output.
zApplications
Label printers
ATM printers
KIOSK printers
Ticket 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 100mm/s with using thermal history control, the
fastest in its class.
2) Standard printheads in the line up are capable of 300d pi. They achieve the high re solution needed for graphi cs and
other complex print patterns.
zDimensions (Unit : mm)
230.5±0.3 (Heatsink width)
230 (Substrate width)
216.832 (Effective print width)
(9)
(12.25)
MAX.23.6
No.15
CONNECTOR.C
Dot #2560
No.1
5-M3(Effective depth 3)
No.15
CL
CONNECTOR.B
96±0.2
206±0.2
No.1
Center of heat element
Dot #1
No.15
CONNECTOR.A
No.1
2.6±0.1
6.1±0.2
Max. φ25.0
(14)
1/4
Printheads
zEquivalent circuit
VH
DOT #2560 DOT #1
··· ··· ··· ··· ··· ··· ··· ··· ··· ··· ···
KD3008-DF54A
VH
GND
DD
V
STB4
CLK
DI4
DO4
DI3
DO3
CONNECTOR C
11 10
LATCH REGISTER
SHIFT
REGISTER
STB3 STB2
GND TM TM
SHIFT
REGISTER
CONNECTOR B
THERMISTOR
30kΩ B:3950
SHIFT
REGISTER
5616 1520 ··· ······
SHIFT
REGISTER
1
···
CONNECTOR A
GND
V
DD
STB1
LAT
DI1
DO1
DI2
DO2
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
3 640
4 640
Dot No.
1 to 640
641 to 1280
1281 to 1920
1921 to 2560
Dots / DI
640
640
2/4
Printheads
zPin assignments
CONNECTOR A
No.
10
11
12
13
14
15
zTiming chart
Circuit
1VH
2
3
4
5
6
7
8
9
VH
VH
VH
VH
VH
DO1
DI1
DO2
DI2
DD
V
LAT
STB1
GND
GND
CLOCK (CLK)
CONNECTOR B
No.
Circuit
1 GND
2
3
4
5
6
7
8
9
10
11
12
13
14
15
GND
GND
GND
GND
NC
STB2
TM
TM
STB3
GND
GND
GND
GND
GND
tw CLK
CONNECTOR C
No.
Circuit
1 GND
2
3
4
5
6
7
8
9
10
11
12
13
14
15
GND
STB4
CLK
DD
V
DO3
DI3
DO4
DI4
VH
VH
VH
VH
VH
VH
KD3008-DF54A
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
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 : 140LAB (RICOH)
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 (
216.832
0.0847
2560
660
24
0.52
1.11
0.27
1280
8
φ25.0
50/5×10
5~45
SLT : 1.11ms/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
KD3008-DF54A
0
012345
SCANNING LINE TIME (
Fig.5 Maximum energy curve
ms/line)
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.
ROHM Customer Support System
www.rohm.com
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Copyright © 2008 ROHM CO.,LTD.
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TEL : +81-75-311-2121
FAX : +81-75-315-0172
Appendix1-Rev2.0
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