ROHM KD2004

KD2004-CF10A
Printheads
Compact medium speed thick film
thermal printhead (8dots / mm)
KD2004-CF10A
The KD2004-CF10A is ideal for applications that require compact, lightweight thermal printheads, such as POS and label
printer applications. The 203dpi has a resolution of the 2-, 3-, 4-, and 8-inch sizes. This series is suitable for a wide range
of applications.
zApplications
POS printers
Label printers
Receipt printers
General purpose compact printers
zFeatures
1) Both ROHM’s advanced LSI technology and proprietary partial glaze are used to realize higher printing efficiency. With
a high print speed of 100mm/s, this series is also suitable for thermal transfer printing.
2) Besides the fact that harness-type direct connectors at either end allow wring to be fitted as convenient, the thermal
printheads can be applied directly to the substrate without a heat sink. Both these features give engineers greater
freedom when designing the printer mechanism.
3) One rank resistance value of 800Ω ± 3% eliminates the inconvenience of rank selection.
4) The required driving voltage of 3.13 to 5.25V allows wide range of power supply voltage setting. This also allows
multiple choice of electronic components for printers.
zExternal dimensions (Unit : mm)
119 (HEATSINK WIDTH)
5.85
DOT #1
4.0
. φ1
2.6
Max
No.9
No.9
No.1
CONNECTOR B
5
4.6
16
15.1
Max. 1.7
108 (EFFECTIVE PRINT WIDTH)
DOT #864
No.1
CONNECTOR A
109
2-M3
1/4
KD2004-CF10A
Printheads
zEquivalent circuit
VH
GND
DOT #864
8,9
STB3
1,2
8,9
6
STB4
DOT #1
1,2
5
4
3
2
VH
GND
1
5
7
6
6
STB1
STB2
5
LATCH REGISTER
DI
V DD
TM
SHIFT REGISTER
4
3
LAT
3
7
4
DO
CLK
THERMISTOR
CONNECTOR B
CONNECTOR A
Fig.1
zPin assignments
CONNECTOR B
CONNECTOR A
No.
Circuit
No.
Circuit
1
GND
1
VH
2
GND
2
VH
3
TM
3
DO
4
VDD
4
CLK
5
STB4
5
LAT
6
STB3
6
STB2
7
DI
7
STB1
8
VH
8
GND
9
VH
9
GND
2/4
KD2004-CF10A
Printheads
zTiming chart
tw CLK
CLOCK (CLK)
t setup DI
t hold DI
DATA IN (DI)
"High" :BLACK
"Low" :WHITE
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
zCharacteristics
Symbol
Typical
Unit
Effective printing width
−
108.0
mm
Dot pitch
−
0.125
mm
Parameter
−
864
dots
Rave
800
Ω
Applied voltage
VH
24.0
V
Applied power
PO
0.49
W/dot
Print cycle
SLT
1.25
ms
Pulse width
TON
0.38
ms
Maximum number of dots energized simultaneously
−
432
dots
Maximum clock frequency
−
8
MHz
Maximum roller diameter
−
φ14.0
Running life / pulse life
−
50/5×10
km/pulses
Operating temperature
−
5~45
°C
Total dot number
Average resistance value
mm
7
3/4
KD2004-CF10A
Printheads
zElectrical characteristic curves
0.8
0.8
1.8
Paper : KF50-HDA (OJI)
0.7
1.4
0.5
0.4
0.3
0.2
0.6
ENERGY (mJ/dot)
OPTICAL DENSITY
0.6
ENERGY (mJ/dot)
SLT : 1.25ms/line
1.6
0.7
1.2
1.0
0.8
0.6
1
2
3
4
5
SCANNING LINE TIME (ms/line)
0.0
0.00
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
0.4
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 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