ROHM KF3003

KF3003-GL50A
Printheads
Thick Film Thermal Printhead (300DPI)
KF3003-GL50A
KF3003-GL50A is developing type of GL40 series which are developed mainly for label printers.
We have adopted low coefficient of abrasion and conductive protection coat to GL40 series which are possible for high
speed and good printing quality.
That is KF3003-GL50A which is 24V standard thick film thermal print head with high speed, high quality of printing, high
durability, long life, and strong resistance to abration.
!Applications
High speed label printer
Food label printer
High speed ticket printer
High speed terminal printer
!Features
1) Perform 150km life time adopting new protective coat.
(Perform three times life time by coefficient of abrasion which is about is about 1/10 of current mass-producing coat.)
2) Build in thermal high speeded heater and perform high printing 6 IPS. (150mm / s)
3) Available for thermal transfer printing by adopting specific partial glaze.
4) Use the structure of thermal G-series which had good actual results. And these good results will guarantee high
reliability of GL-series.
5) Line-up for 2 and 4 inches.
!External dimensions (Units : mm)
TYPE OF PRINTHEAD
20.656±0.2
40±0.3
DOT #960
#1
HIROSE HIF3FC-20PA-2.54DS
#20
#6
#1
#19
JST B6PS-VH
Max.5.5
60.5±0.3
φ3H10
(Effective Depth 3)
20.5±0.3
17.8±0.2
7.3±0.3
Max.10
#2
15.3±0.3
φ2
0
(20.8)
25±0.5
20±0.3
(3)
Max.36
Max.45
φ3H10 Length 4
(Effective Depth 3)
(5)
81.312(Effetive Print Width)
DOT #960
DOT #1
(4.844)
3-M3(Effective Depth 3)
6.1±0.4
91
KF3003-GL50A
Printheads
!Equivalent circuit
DOT #960
VH
DOT #1
GND
15
14
13
12
9
8
5
4
2
1
VDD
STB4
64 OUTPUT EACH
STB3
STB2
STB1
LAT
LATCH REGISTER
CLK
SHIFT
REGISTER
SHIFT
REGISTER
SHIFT
REGISTER
DI4
DO4
DI3
DO3
DI2
DO2
DI1
DO1
TM
THERMISTOR
30kΩ B : 3950
TM
CONNECTOR
DI No.
DOT No.
STB No.
DOT No.
DI1
1~256
STB1
1~256
DI2
257~512
STB2
257~512
DI3
513~768
STB3
513~768
DI4
769~960
STB4
769~960
Fig. 1
!Pin configuration
CONNECTOR A
CONNECTOR B
No.
Circuit
No.
Circuit
No.
Circuit
1
GND
11
TM
1
VH
2
VDD
12
TM
2
VH
3
GND
13
DI3
3
VH
4
VDD
14
DO3
4
GND
5
STB4
15
DI2
5
GND
6
CLK
16
DO2
6
GND
7
DI4
17
STB2
8
DO4
18
STB1
9
STB3
19
DI1
10
LAT
20
DO1
SHIFT
REGISTER
KF3003-GL50A
Printheads
!Timing chart
Min.30ns
CLOCK (CLK)
Min.10ns
Min.30ns
DATA IN (DI)
"High" : BLACK
"Low" : WHITE
Max.120ns
DATA OUT (DO)
"High" : BLACK
"Low" : WHITE
Min.200ns
Min.50ns
LATCH (LAT)
"High" : HOLD
"Low" : THROUGH
Min.100ns
Min.300ns
STROBE (STB)
Max.10µs
Max.10µs
DRIVER OUT
Fig.2
!Characteristics
Parameter
Symbol
Typ.
Unit
Effective printing width
-
81.31
mm
Dot pitch
-
0.0847
mm
Total dot number
Average resistance value
Applied voltage
Applied power
-
960
dots
Rave
1250
Ω
VH
24
V
PO
0.42
W / dot
Print cycle
SLT
0.83
ms
Pulse width
TON
0.284
ms
Maximum number of dots energized simultaneously
-
960
dots
Maximum clock frequency
-
8
MHz
Maximum roller diameter
-
φ20.0
mm
8
Running life / pulse life
-
150 / 1×10
km / pulses
Operating temperature
-
5~45
˚C
KF3003-GL50A
Printheads
0.40
1.6
180
0.35
1.4
160
0.30
1.2
0.25
1.0
0.20
0.8
0.15
0.6
0.10
0.4
0.50
0.2
0
0
0
0.5
1
1.5
2
2.5
RESISTANCE : (kΩ)
140
SPEED : 4IPS
O.D
ENERGY : (mJ / dot)
!Data sheet
120
100
80
60
40
20
0
0.02 0.04 0.06 0.08
0.1 0.12 0.14 0.16 0.18
SLT : (ms / line)
ENERGY : (mj / dot)
Fig.3 Maximum energy curve
Fig.4 Representative density curve
0
−20 −10
0
10
20
30
40
50
TEMPERATURE : (˚C)
Fig.5 Thermistor curve
60
70