Page 1
SE2004-DC90A
Printheads
Hight Speed Thermal Printhead
(8dots / mm)
SE2004-DC90A
High speed, high quality, and high durability are achieved by using step free structure with high performance partial glaze
and highly conductive overcoat la yer. SE200*-DC90A series are lined up which can accom modate with all types of
barcode labeling printers from Direct to Thermal Transfer, normal to high speed (over 300mm/s).
zApplications
Bar code label printers
Ticket printers
General purpose compact printers
zFeatu res
1) ROHM new technology “STEP FREE” structure will provide, high corrosion resistance, better resistance against
scratching damage, high ef ficiency.
2) Standard glazed components to accommodate thick paper.
3) High speed clock to facilitate external heat history control.
4) Using a hard conductive film as a protective film on the heating element offers excellent resistance to electrostatic
damage.
5) Compatible with the 300dpi in mechanical specifications, to facilitate the making of a series of
printers.
zExternal dimensions (Unit : mm)
DOT No.1
Max.φ20
Min. 4.3
Max.5
#1
3-M3
EFFECTIVE DEPTH 3
2.8±0.2
7.3±0.3
17.8±0.2
φ
3 H10 LENGTH 4
EFFECTIVE DEPTH 3
DOT No.1
6±0.2
(26)
Max.10
(21.3)
#2
#1
10±0.2
16±0.2
40±0.3
124±0.5
112
100±0.2
80±0.3
#26
#25
#6
JST B6PS-VH
(6)
(3.5)
Max. 48
TYPE OF PRINTHEAD
HIROSE HIF3FC-26PA-2.54DS
(36)
25±0.5
φ3 H10
EFFECTIVE DEPTH 3
Note: No heat history control function inside the thermal printhead. External heat history control is required for high speed printing.
(22)
1/5
Page 2
SE2004-DC90A
Printheads
zCharacteristics
Parameter
Effective printing width
Dot pitch
Total dot number
Average resistance value
Applied voltage
Applied power
Print cycle
Maximum number of dots energized simultaneously
Maximum clock frequency
Maximum roller diameter
Running life / pulse life
Operating temperature
zPin configuration
HIROSE
CircuitNo.
1 GND
3
5
7
9
11
13
15
17
19
21
23
25
DI2
/LAT
NC
/STB1
TM TM
SENS3
SENS1 BEO
NC
NC
NC
NC
NC
2
4
6
8
10
12
14
16
18
20
22
24
26
VDD
CLK(CP)
/STB2
DI1
NC
SENS2
NC
NC
NC
NC
NC
Symbol Typical Unit
112
0.125
896
JST
1
2
3
4
5
6
Rave
H
V
P
O
SLT
CircuitNo.No. Circuit
COM
COM
COM
GND
GND
GND
550
24
0.91
0.42
896
10
20
50 / 1
5 to 45
×10
8
mm
mm
dots
Ω
V
W/dot
ms
dots
MHz
mm
km / pulses
°C
2/5
Page 3
SE2004-DC90A
Printheads
zTiming chart
Min.45ns
CLK
Min.30ns Min.10ns
DI
BEO
CLK
/LAT
/STBn
DRIVER
OUT
Min.100ns Min.50ns
Min.100ns Min.300ns
Fig.1
Max.12.5µs Max.12.5µs
3/5
Page 4
SE2004-DC90A
Printheads
zEquivalent circuit
DOT 1DOT 896
VH
GND
BEO
/STB2
/STB1
/LAT
DI 2
DI 1
CLK
Vdd
GND
TM
TM
LATCH
896 641 449640 448 193 192 1
0.1µF 50V
DI No.
DI 2
DI 1
DOT No.
896
∼
449
∼
1
448
/STR No. DOT No.
/STB2
/STB1
Fig.2
896
448
∼
449
∼
1
4/5
Page 5
SE2004-DC90A
Printheads
zData sheet
1.5
1.4
1.2
1.0
0.8
0.6
OPTICAL DENSITY
0.4
0.2
0.0
0.10 0.15 0.20 0.25 0.320.30
ENERGY(
mJ / dot)
Fig. 3 Representative density curve
0.50
0.45
0.40
mJ / dot)
0.35
0.30
0.25
0.20
0.15
0.10
0.05
SUPPLY ENERGY(MAX) (
0.00
0 0.4 0.8 1.2 1.6 2.01.8 2.21.41.00.60.2
SCANNING LINE TIME(
Fig. 4 Maximum energy curve
ms / line)
180
160
140
kΩ)
120
100
80
60
40
RESISTANCE VALUE :(
20
0
-100 10203040506070
TEMPERATURE : (°C)
Fig. 5 Thermistor curve
R25=30kΩ
B=3950k
5/5
Page 6
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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