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NF3004-VA20A
Printheads
Hight Speed Thermal Printhead
(300DPI ; dots / inch)
NF3004-VA20A
The NF3004-VA20A is a flat thin film thermal printhead that supports medium speed and high speed printing, suited
for general purpose compact printers as well as label printers.
Applications
!
High definition bar code label printers
High definition ticket printers
General purpose compact printers
Features
!
1) High definition of 300 dots / inch.
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 NF2004-VA20A (8dots / mm) in mechanical specifications, to facilitate the making of a series of
printers.
External dimensions
!
Note: No heat history control function inside the thermal printhead. External heat history control is required for high speed printing.
(Units : mm)
TYPE OF PRINTHEAD
HIROSE HIF3FC-26PA-2.54DS
φ3 H10
EFFECTIVE DEPTH 3
(7.792)
(36)
(3.5)
Max. 48
25±0.5
(22)
#2
#1
10±0.2
14.208±0.2
40±0.3
124±0.5
108.4
100±0.2
80±0.3
#26
#25
DOT No.1
#1
#6
JST B6PS-VH
Max.φ20
Min. 4.3
Max.5
3-M3
EFFECTIVE DEPTH 3
2.8±0.2
7.3±0.3
17.8±0.2
(21.3)
φ
3 H10 LENGTH 4
EFFECTIVE DEPTH 3
DOT No.1
6±0.2
(26)
Max.10
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Printheads
Characteristics
!
NF3004-VA20A
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
Pin configuration
!
HIROSE JST
CircuitNo.
11
13
15
17
19
21
23
25
1
3
5
7
9
GND
DI 2
/LAT
NC
/STB 1
TM
SENS 3
SENS 1
NC
NC
NC
NC
NC
2
4
6
8
10
12
14
16
18
20
22
24
26
VDD
CLK (CP)
/STB 2
DI 1
NC
TM
SENS 2
BEO
NC
NC
NC
NC
NC
Symbol Typical Unit
-
-
-
Rave
V
H
P
O
SLT
T
ON
-
-
-
-
-
CircuitNo.No. Circuit
1
2
3
4
5
6
COM
COM
COM
GND
GND
GND
108.4
0.0847
1280
1250
24
0.41
0.83
0.28
1280
10
20
50 / 10
60
8
mm
mm
dots
Ω
V
W / dot
ms
ms
dots
MHz
mm
km / pulses
˚C
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Printheads
Taiming chart
!
CLK
NF3004-VA20A
Min. 45ns
BEO
CLK
/LAT
/STBn
Min. 30ns
DI
Min. 100ns
Min. 100ns Min. 300ns
Min. 50ns
Min. 10ns
DRIVER
OUT
Max. 12.5µs Max. 12.5µs
Fig.1
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Printheads
Equivalent circuit
!!!!
VH
GND
BED
/STB2
/STB1
NF3004-VA20A
DOT #1DOT #1280
/LAT
DI 2
DI 1
CLK
V
GND
LATCH
1280 961 960 641 640 321 320 1
DD
0.1µF 50V
TM
TM
DI No.
DI 2
DI 1
DOT No.
1280~641
640~1
/STB No. DOT No.
/STB2
/STB1
Fig.2
1280~641
640~1
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Printheads
Adaptation speed chart
!
0 1 2 3 4 5 6 7 8 9 10 OVER
Inch / second [IPS]
NF3004-VA20A
Without external
heat history control
Data sheet
!!!!
1.5
1.4
1.2
1.0
0.8
0.6
OPTICAL DENSITY
0.4
0.2
0.0
ENERGY (
With external heat
history control
mJ / dot)
Fig. 3 Representative density curve
0.24
0.22
0.20
mJ / dot)
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
SUPPLY ENERGY (MAX) (
0.02
0.00
0.1250.1000.0750.050
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
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