ROHM KD3008

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 both thermal and thermal transfer printing, with a print speed of 100mm/s, the resulting
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 element structure, along with new high-density driver chips 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 300dpi. They achieve the high resolution needed for graphics and
other complex print patterns.
zDimensions (Unit : mm)
230.5±0.3 (Heatsink width)
230 (Substrate width)
216.832 (Effective print width)
(9)
Dot #2560
Dot #1
2.6±0.1
MAX.23.6
CL
.0
25
.φ
ax
M
No.15
No.1
No.15
No.1
CONNECTOR.B
No.1
No.15
CONNECTOR.A
6.1±0.2
(14)
CONNECTOR.C
96±0.2
(12.25)
206±0.2
5-M3(Effective depth 3)
Center of heat element
1/4
KD3008-DF54A
Printheads
zEquivalent circuit
DOT #2560
VH
DOT #1
···
GND
20
···
···
···
16
···
15
···
···
···
11
···
10
···
···
···
6
···
5
VH
···
···
GND
1
V DD
V DD
STB4
STB1
LAT
LATCH REGISTER
CLK
SHIFT
REGISTER
SHIFT
REGISTER
SHIFT
REGISTER
SHIFT
REGISTER
DI4
DO4
DI1
DO1
DI3
DI2
DO3
DO2
CONNECTOR C
CONNECTOR A
THERMISTOR
30kΩ B:3950
STB3
GND
TM
TM
STB2
CONNECTOR B
STB No.
Dot No.
Dots / STB.
DI No.
Dot No.
Dots / DI
1
1 to 640
640
1
1 to 640
640
2
641 to 1280
640
2
641 to 1280
640
3
1281 to 1920
640
3
1281 to 1920
640
4
1921 to 2560
640
4
1921 to 2560
640
2/4
KD3008-DF54A
Printheads
zPin assignments
CONNECTOR A
CONNECTOR C
CONNECTOR B
No.
Circuit
No.
Circuit
No.
Circuit
1
VH
1
GND
1
GND
2
VH
2
GND
2
GND
3
VH
3
GND
3
STB4
4
VH
4
GND
4
CLK
5
VH
5
GND
5
VDD
6
VH
6
NC
6
DO3
7
DO1
7
STB2
7
DI3
8
DI1
8
TM
8
DO4
9
DO2
9
TM
9
DI4
10
DI2
10
STB3
10
VH
11
VDD
11
GND
11
VH
12
LAT
12
GND
12
VH
13
STB1
13
GND
13
VH
14
GND
14
GND
14
VH
15
GND
15
GND
15
VH
zTiming chart
tw CLK
CLOCK (CLK)
t setup DI
DATA IN (DI)
"High":BLACK
"Low" :WHITE
t hold DI
td DO
DATA OUT (DO)
"High":BLACK
"Low" :WHITE
t hold LAT
t setup LAT
LATCH (LAT)
"High":HOLD
"Low" :THROUGH
tw LAT
t setup STB
STROBE (STB)
tdo
tdo
DRIVER OUT
Fig.2
3/4
KD3008-DF54A
Printheads
zCharacteristics
Symbol
Typical
Unit
Effective printing width
−
216.832
mm
Dot pitch
−
0.0847
mm
Total dot number
−
2560
dots
Rave
660
Ω
VH
24
V
Parameter
Average resistance value
Applied voltage
Applied power
PO
0.52
W/dot
Print cycle
SLT
1.11
ms
Pulse width
TON
0.27
ms
Maximum number of dots energized simultaneously
−
1280
dots
Maximum clock frequency
−
8
MHz
Maximum roller diameter
−
φ25.0
Running life / pulse life
−
50/5×10
Operating temperature
−
5~45
mm
7
km/pulses
°C
zElectrical characteristic curves
0.8
0.8
1.8
1.6
0.6
1.4
0.5
0.4
0.3
0.2
SLT : 1.11ms/line
0.7
0.6
ENERGY (mJ/dot)
0.7
OPTICAL DENSITY
ENERGY (mJ/dot)
Paper : 140LAB (RICOH)
1.2
1.0
0.8
0.6
0
0
1
2
3
4
5
SCANNING LINE TIME (ms/line)
0.05
0.10
0.15
0.20
0.25
0.30
ENERGY (mJ/dot)
Fig.3 Adaptive speed chart
0.3
0.1
0.2
0.0
0.00
0.4
0.2
0.4
0.1
0.5
Fig.4 Representative density curve
0
0
1
2
3
4
5
SCANNING LINE TIME (ms/line)
Fig.5 Maximum energy curve
180
160
RESISTANCE : (kΩ)
140
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 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
Copyright © 2008 ROHM CO.,LTD.
THE AMERICAS / EUROPE / ASIA / JAPAN
Contact us : [email protected] rohm.co. jp
21 Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan
TEL : +81-75-311-2121
FAX : +81-75-315-0172
Appendix1-Rev2.0