ROHM SF3004

SF3004-EC10A
Printheads
For Color Photo Printers
(300DPI ; dots / inch)
SF3004-EC10A
The SF3004-EC10 Series are suitable for small photo printers which can make direct print out from digital still cameras
and mobile phones. ROHM’s technology based on “Step-free” structure enables battery drive, and high resolution printing
quality.
zApplications
Home printers
Mobile Photo printers
Photo kiosk terminals
“Print club” (color photo printer) terminals
zFeatures
1) SF3004-EC10 is drivable with batteries, thanks to it’s low energy consumption.
2) SF3004-EC10 enables full color printing by keeping the adjacent resistance variation less than ±1.5%.
3) Employing of the driver IC capable of high-speed data transfer at 3.3 circuit supply voltage makes the gradation
printing control easier.
4) High dot reproducibility with step-free structure.
zExternal dimensions (Unit : mm)
114.2± 0.2
Dot #1280
(5.835)
108.16
CL
Dot #1
Max.14
(3.02)
0
φ1
1/4
SF3004-EC10A
Printheads
zEquivalent circuit
DOT #1280
DOT #1
VH
0.47µF
GND
128
1
~
256
129
~
384
257
~
512
385
~
640
513
~
768
641
~
896
769
~
1024
897
~
1152
1025
~
~
1280
1153
VDD
/STB2
/STB1
/LAT2
LATCH REGISTER 2
LATCH REGISTER 1
/LAT1
CLK1
CLK2
SHIFT
REGISTER 10
DI 10
SHIFT
REGISTER 9
SHIFT
REGISTER 2
SHIFT
REGISTER 1
DI 9
DI 8
DI 7
DI 6
To each Shift Register
DI 5
DI 4
DI 3
DI 2
DI 1
THERMISTOR
10kΩ B3380K
TM
GND
DI No.
DOT No.
DI No.
DOT No.
/STB No.
DOT No.
10
1280 to 1153
5
640 to 513
2
1280 to 641
9
1152 to 1025
4
512 to 385
1
640 to 1
8
1024 to 897
3
384 to 257
7
896 to 769
2
256 to 129
6
768 to 641
1
128 to 1
Fig.1
2/4
SF3004-EC10A
Printheads
zPin assignments
No.
Circuit
No.
Circuit
No.
Circuit
1
GND
2
VH
3
VH
4
VH
5
GND
6
CLK 2
7
GND
8
/LAT 2
9
/STB 2
10
TM
11
DI 10
12
DI 9
13
DI 8
14
DI 7
15
DI 6
16
DI 5
17
DI 4
18
DI 3
19
DI 2
20
DI 1
21
VDD
22
/STB 1
23
/LAT 1
24
GND
25
CLK 1
26
GND
27
VH
28
VH
29
VH
30
GND
zTiming chart
tw CLK
CLK
(CLOCK)
t setup DI
t hold DI
DI(DATA IN)
"High" : BLACK
"LOW" : WHITE
t setup LAT
t hold LAT
LAT
(LATCH)
"High" : HOLD
"LOW" : THROUGH
tw LAT
t setup STB
STB
(STROBE)
tdo
tdo
DRIVER
OUT
Fig.2
3/4
SF3004-EC10A
Printheads
zCharacteristics
Symbol
Typical
Unit
Effective printing width
−
108.16
mm
Dot pitch
−
0.0845
mm
−
1280
dots
Rave
2800
Ω
Parameter
Total dot number
Average resistance value
Applied voltage
VH
13.3
V
Applied power
PO
0.061
W/dot
Print cycle
SLT
4.5
ms/line
Pulse width
TON
2.25
ms
Maximum number of dots energized simultaneously
−
640
dots
Maximum clock frequency
−
16
MHz
Maximum rolls diameter
−
10
mm
Running life / pulse life
−
2/5×107
km/pulses
Operating temperature
−
5 to 45
°C
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 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
Copyright © 2008 ROHM CO.,LTD.
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Appendix1-Rev2.0