ROHM SH2004-DC70A Technical data
SH2004-DC70A
Printheads
Near edge thermal printhead
(with thermal historical control)
SH2004-DC70A
SH-DC70 series was developed with two key structures step-free and near edge for the packaging printer market which
requires high speed continuous printing. It is suitable for printers in factory line where high speed 24 hours continuous
printing is required.
zApplications
Bar code printer
Label printer
Packaging printer
ATM
Ticket printer
zFeatures
1) ROHM new technology “STEP FREE” structure will provide, high corrosion resistance, better resistance against
scratching damage, high ef ficiency.
2) Head inclination by near-edge structure, applicable to the la rge -size pl aten. Re sin ty pe therma l-tran sfe r ink-ribb on can
be used.
3) High-hardness protect cote type “W-coat” is employed with 150km abrasion life-time.
4) A buil t in history-contro l functionality, high-speed printing up to 300mm / s can be achieved w ith clear print image.
zExternal dimensions (Unit : mm)
Type of PRINTHEAD
φ3 H10
Effective Depth 3
MAX.56
124±0.5
(Effective print width)
40±0.3
104
#20
#19
100±0.2
80±0.3
#1#6
CONNECTOR:B
(10)
#2
CONNECTOR:A
#1
10±0.2
(43)
0.5
±
31.0
(12±0.3)
DOT No.1
5.7
3-M3
Effective Depth 3
0.2
±
0.2
±
0.3
±
20.45
2.8
7.3
φ3 H10 Length 4
Effective Depth 3
DOT No.1
°
Max.5.5
(Typ.)
(21.2)
6±0.5
Print Direction
Max.12
1/3
SH2004-DC70A
Printheads
zEquivalent circuit
VH (COM)
GND
VDD (+5)
/ STB2
/ STB1
BEO
/ RESET
CLK (CP)
/ LOAD
START
INC
220µF
35V
0.1µF
50V
DI
DOT #832 DOT #1
LATCH REGISTER
TO EACH IC
SEL2
SEL1
TM
TM
DI No.
DI2 832 to 449
DI1 448 to 1
DOT No.
/ STB No.
/ STB2
/ STB1
zPin assignments
CONNECTOR A CONNECTOR B
No.
1
3
5
7
9
11
13
15
17
19
Circuit
V
DD
GND
GND
/LOAD
INC
SEL2
/RESET
/ STB 1
TM
SENS2
No.
2
4
6
8
10
12
14
16
18
20
Circuit
BEO
DI2
CLK(CP)
START
DI1
SEL1
/ STB 2
TM
SENS1
SENS3
No.
Circuit
1
VH (COM)
V
H
3
56
(COM)
GND
THERMISTOR
30kΩ B: 3950
DOT No.
832 to 449
448 to 1
No.
2
4
Circuit
VH (COM)
GND
GND
2/3
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