KD2004-CG10A
Printheads
1/4
Compact medium speed thick film thermal
printhead (8dots / mm)
KD2004-CG10A
KD2004-CG10A is suitable for devices, such as high-speed POS and label printer applications, that require thermal
printheads capable of higher printing rates. Improved power circuit design means that with heavier current it is possible to
print at speeds as high as 150 mm/s. The GK Series is the thus ideal for label printers that need high printing rates.
􀁺Applications
POS terminals, Label printers, CAT terminals, Multi-purpose small-sized printers
􀁺Features
1) Using a special compact partial glaze and new heating element structure, achieves high-speed printing at 150 mm/s.
2) The use of the newly developed highly-durable conductive protective film has improved countermeasures against
static electricity.
3) The VH and GND sections of the power circuitry have been strengthened so that heavier current can be applied.
4) Ultra small connectors, designed to conform with FFCs, and miniature driver chips have been used. Although the
resulting printheads are surprisingly compact and lightweight, they can be used with large platens of up to 20 mm in
diameter.
5) One rank resistance value of 800Ω ± 3% eliminates the inconvenience of rank selection.
6) 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 components for printers.
7) 2-inch, 3-inch and 4-inch series are available.
􀁺External dimensions (Unit : mm)
Exposed Conductor Side
Insert Direction
Connector
4±0.2
5.1±0.1
10.2
2-M3 (Effective Depth 3)
(5.1)
110±0.2
118 Max.1.7
Max. φ20.0
No.1
Dot #1
108 (Effective Print Width)
2.6±0.1
Max.17.5
Dot #864
No.28
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KD2004-CG10A
Printheads
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􀁺Equivalent circuit
VH
GND
VDD
STB2
STB1
LAT
DI
DO
CLK
TM
TM
DOT #864 DOT #1
Fig.1
4 3 2 1
STB3
STB4
LATCH REGISTER
SHIFT REGISTER
THERMISTOR
30kΩ B:3950k
CONNECTOR
1, 2, 3, 4,
25, 26, 27, 28
11, 12, 13, 14,
15, 16, 17, 18, 19
22
23
8
9
7
24
6
5
21
10
20
144 OUTPUTS EACH
􀁺Pin assignments
No.
15 GND
GND
GND
TM
TM
VDD
DI
DO
VH
16
17
18
19
20
21
22
23
24
VH
VH
VH
25
26
27
28
Circuit
LAT
No.
1 VH
VH
VH
VH
CLK
STB2
GND
2
3
4
5
6
7
8
9
10
11
12
13
14
Circuit
GND
GND
GND
GND
GND
STB1 STB3
STB4
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KD2004-CG10A
Printheads
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􀁺Timing chart
CLOCK (CLK)
DATA IN (DI)
LATCH (LAT)
"High":HOLD
"Low" :THROUGH
"High":BLACK
"Low" :WHITE
STROBE (STB)
DRIVER OUT
tw CLK
t setup DI t hold DI
DATA OUT (DO)
"High":BLACK
"Low" :WHITE
td DO
t setup LAT
tw LAT t setup STB
tdo tdo
t hold LAT
Fig.2
􀁺Characteristics
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
Parameter
−
Rave
VH
PO
SLT
TON
108
0.125
864
800
24.0
0.59
1.0
0.34
432
16
φ20.0
50/5×107
5 to 45
mm
mm
dots
Ω
V
W/dot
ms
ms
dots
MHz
mm
km/pulses
°C
Symbol Typical Unit
−
−
−
−
−
−
−
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􀁺Electrical characteristic curves
Paper : KF50-HDA (OJI)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0 1 2 3 4 5
SCANNING LINE TIME (ms/line)
ENERGY (mJ/dot)
Fig.3 Adaptive speed chart
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0.00 0.05 0.10 0.15 0.20 0.25 0.30
ENERGY (mJ/dot)
OPTICAL DENSITY
SLT : 1.00ms/line
Fig.4 Representative density curve
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0 1 2 3 4 5
SCANNING LINE TIME (ms/line)
ENERGY (mJ/dot)
Fig.5 Maximum energy curve
0
20
40
60
80
100
120
140
160
180
−20 −10 0 10 20 30 40 50 60 70
TEMPERATURE : (°C)
RESISTANCE : (kΩ)
Fig.6 Thermistor curve
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Appendix
Appendix1-Rev1.1
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.
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.
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.
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