Page 1
KA2004-BE51A
Printheads
For Mobile, FET-POS, Debit Card, PDA, ECR
2.7V Print Voltage (B Series)
KA2004-BE51A
Not only hand-held printers, but card payment terminals (EFT-POS) and compact label printers require less than 8.5V of
supply voltage.
ROHM’s B Series of thermal printheads, de veloped using cutting -edge LSI technolog y, can operate on a single lithium
ion battery and contribute to end-product miniaturization.
zApplications
Mobile printers
EFT-POS printers
Hand-held printers
Debit printers
zFeatures
1) The B series brings reduced height of protective resin for IC and enla r ged paper pathway for thermal papers. Thanks
to ROHM’s latest LSI high in tegrated moun ting technology and i t’s ultra slim driver IC.
2) The B series accede the great world class low energy consumption characteristics of GP series.
3) Because the print heads circuits draw 2.7V, the printer can be driven using a single lithium battery.
zDimensions (Unit : mm)
117
104 (
Effective Print Width
Connector
Rev.A 1/4
)
Exposed
Conductor Side
Insert Direction
Page 2
Printheads
R
H
K
NC
R
R
I
zEquivalent circuit
zPin assignments
V
L-GND
P-GND
STB7
STB6
STB2
STB1
/AEO2
/AEO1
/LAT
CL
D
DO
VDD
TM
TM
CONNECTO
DOT#832
～
#769
＃
832
KA2004-BE51A
DOT #1
～
～
#705
＃
768
～
#641
＃
704
#193
＃
LATCH REGISTE
SHIFT REGISTE
ＬＡＴＣＨ ＲＥＧＩＳＴＥＲ
30ｋΩ B：3950K
#129
～
＃
256
192
THER MISTOR
＃
64
128
～
～
#1
#65
＃
No.
10
11
Circuit
1V
2
3
4
5
6
7
8
9
H
V
H
V
H
DO
/LAT
CLK
DD
V
STB1
STB2
STB3
TM
TM12
P-GND13
14
P-GND
No.
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Circuit
P-GND
P-GND
P-GND
L-GND
/AEO1
/AEO2
STB4
STB5
STB6
STB7
DI
H
V
V
H
V
H
Rev.A 2/4
Page 3
KA2004-BE51A
I
T
T
R
Printheads
zTiming chart
(CLOCK)
CLK
DI(DATA IN)
DO (DAT A OUT)
"High":BLACK
"LOW" :WHIT E
"High":BLACK
"LOW" :WHIT E
t setu p D
/LAT
(LATCH)
"High": HOLD
"LOW" : THR OUGH
STB
(STROBE)
/AEO (AREA
ENABLE OU T)
DRIVE
OUT
*If delay time for Driver Out can not be secured enough, there is a possibility that VH would fluctuate
greatly. Please design the circuit so that VH does not exceed peak voltage (Vp).
zCharacteristics
Parameter
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
Rev.A 3/4
tw CLK
t hold DI
td DO
t setu p LA
tw LAT t setu p STB
t hold LA
t do
Symbol Typical Unit
−
−
−
Rave
H
V
P
O
SLT
ON
T
−
−
−
−
−
104
0.125
832
176
7.2
0.24
1.25
0.55
64
8
φ14
50/1×10
5 to 45
8
mm
mm
dots
Ω
V
W/dot
ms
ms
dots
MHz
mm
km/pulses
°C
min.10μsec
Min.10µs∗
(Max. tdo)*
t do
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Printheads
zElectrical characteristic curves
0.8
0.7
0.6
0.5
0.4
0.3
ENERGY (mJ/dot)
0.2
0.1
0
012345
SCANNING LINE TIME (
Fig.1 Adaptive speed chart
180
160
140
120
100
80
60
RESISTANCE : (kΩ)
40
20
0
−20 −10 10 30 50 700204060
Paper : KF50-HDA (OJI)
ms/line)
TEMPERATURE : (°C)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
OPTICAL DENSITY
0.4
0.2
0.0
0.00 0.05 0.10 0.15 0.20 0.25 0.30
ENERGY (
Fig.2 Representative density curve
SLT : 2.50ms/line
mJ/dot)
KA2004-BE51A
0.8
0.7
0.6
0.5
mJ/dot)
0.4
0.3
ENERGY (
0.2
0.1
0
012345
SCANNING LINE TIME (
Fig.3 Maximum energy curve
ms/line)
Fig.4 Thermistor curve
Rev.A 4/4
Page 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 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
THE AMERICAS / EUPOPE / ASIA / JAPAN
Contact us : webmaster@ rohm.co. jp
Copyright © 2007 ROHM CO.,LTD.
21, Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan
TEL : +81-75-311-2121
FAX : +81-75-315-0172
Appendix1-Rev2.0
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