ROHM SE2003

SE2003-DC90A
Printheads
Hight Speed Thermal Printhead
(8dots / mm)
SE2003-DC90A
High speed, high quality, and high durability are achieved by using step free structure with high performance partial glaze
and highly conductive overcoat layer. SE200*-DC90A series are lined up which can accommodate 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
zFeatures
1) ROHM new technology “STEP FREE” structure will provide, high corrosion resistance, better resistance against
scratching damage, high efficiency.
2) Standard glazed components to accommodate thick paper.
3) High speed clock (10MHz) 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 SE3003-DC90A 300dpi in mechanical specifications, to facilitate the making of a series of
printers.
zExternal dimensions (Unit : mm)
90±0.5
6±0.5
80 (EFFECTIVE PRINT WIDTH)
(5)
DOT #640
Ma
x.
φ20
Max. 48
(3.5)
DOT #1
Max. 5
#2
#20
#1
#19
#6
Max. 12
#1
JST B6PS-VH
HIROSE HIF3FC-20PA-2.54DS
φ3H10
EFFECTIVE DEPTH 3
φ3H10 LENGTH 4
20±0.2 20±0.3
(25)
40±0.3
25±0.5
(21.3)
17.8±0.2
7.3±0.3
EFFECTIVE DEPTH 3
DOT #1
M3
EFFECTIVE DEPTH 3
Note: No heat history control function inside the thermal printhead. External heat history control is required for high speed printing.
1/5
SE2003-DC90A
Printheads
zCharacteristics
Parameter
Symbol
Typical
Unit
Effective printing width
−
80
mm
Dot pitch
−
0.125
mm
Total dot number
−
640
dots
Rave
550
Ω
VH
24
V
Average resistance value
Applied voltage
Applied power
PO
0.899
W / dot
SLT
0.42
ms
Maximum number of dots energized simultaneously
−
448
dots
Maximum clock frequency
−
10
MHz
Maximum roller diameter
−
20
mm
Running life / pulse life
−
50 / 108
km / pulses
Operating temperature
−
5 to 45
°C
Print cycle
zPin configuration
HIROSE
JST
No.
Circuit
No.
Circuit
No.
Circuit
1
VDD
2
BEO
1
VH
3
GND
4
DI2
2
VH
5
N.C.
6
CLK
3
VH
7
LA
8
GND
4
GND
9
GND
10
DI1
5
GND
11
N.C.
12
GND
6
GND
13
VDD
14
STB2
15
STB1
16
TM
17
TM
18
SENS1
19
SENS2
20
SENS3
2/5
SE2003-DC90A
Printheads
zTiming chart
t3
CLK
t1
t2
DI
BEO
CLK
t5
t4
LA
t6
t7
STBn
DRIVER
OUT
t8
t8
Fig.1
3/5
SE2003-DC90A
Printheads
zEquivalent circuit
DOT#1
DOT #640
VH
220µF 35V
GND
BEO
STB2
STB1
LA
LATCH
320
321
640
1
DI 2
DI 1
CLK
VDD
0.1µF 50V
GND
TM
TM
DI No.
DOT No.
STB No.
DOT No.
DI 2
640 to 321
STB 2
640 to 321
DI 1
320 to
STB 1
320 to
1
1
Fig. 2
4/5
SE2003-DC90A
Printheads
zElectrical characteristics curves
OPTICAL DENSITY
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.060
0.100
0.150
0.200
0.250
ENERGY (mJ / dot)
Fig. 3 Representative density curve
0.50
180
0.45
160
RESISTANCE VALUE : (kΩ)
SUPPLY ENERGY (MAX) (mJ / dot)
1.5
1.4
0.40
0.35
0.30
0.25
0.20
0.15
0.10
R25=30kΩ
B=3950k
140
120
100
80
60
40
20
0.05
0.00
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2
SCANNING LINE TIME (ms / line)
Fig. 4 Maximum energy curve
0
−10
0
10
20
30
40
50
60
70
TEMPERATURE : (°C)
Fig. 5 Thermistor curve
5/5
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