
KF3002-GL50A
Printheads
Thick Film Thermal Printhead (300DPI)
KF3002-GL50A
KF3002-GL50A is developing type of GL40 series which are developed mainly for label printe rs.
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 KF3002-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 3 and 4 inches.
External dimensions
!!!!
(5.396)
DOT #640
Max.36
Max.45
(3)
(Units : mm)
65
54.208(Effetive Print Width)
DOT #1
#20#2
TYPE OF PRINTHEAD
6.1±0.4
φ
(5)
φ20
Max.10
#1
#4
Max.5.5
3H10 Length 4
(Effective Depth 3)
0.5
±
25
(20.8)
3-M3(Effective Depth 3)
φ
3H10
(Effective Depth 3)
55.5±0.3
55
±
56±0.3
0.3
0.896±0.2
28±0.3
DOT #640
0.3
±
7.3
0.3
0.2
±
±
15.3
17.8
#1
HIROSE HIF3FC-20PA-2.54DS
#19
JST B4PS-VH

Printheads
Equivalent circuit
!!!!
VH
KF3002-GL50A
DOT #640 DOT #1
GND
V
STB2
STB1
LAT
CLK
DI2
DO2
DI1
DO1
TM
TM
10 9 765 4 3 2
DD
CONNECTOR
DI No.
DOT No. STB No.
DI1 1~320 1~320
321~640 321~640DI2
8
SHIFT
REGISTER
STB1
STB2
LATCH REGISTER
THERMISTOR
30kΩ B : 3950
DOT No.
SHIFT
REGISTER
1
64 OUTPUT EACH
Pin configuration
!!!!
CONNECTOR A CONNECTOR B
No.
10
Circuit
1
2
3
4
5
6
7
8
9
GND
V
DD
GND
V
DD
STB2
CLK
D I 2
DO2
STB1
LAT
No.
11
12
13
14
15
16
17
18
19
20
Circuit
TM
TM
D I 1
DO1
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
No.
1
2
3
4
Fig. 1
Circuit
VH
VH
GND
GND

Printheads
Timing chart
!!!!
CLOCK (CLK)
KF3002-GL50A
Min.30ns
Min.30ns
DATA IN (DI)
"High" : BLACK
"Low" : WHITE
DATA OUT (DO)
"High" : BLACK
"Low" : WHITE
LATCH (LAT)
"High" : HOLD
"Low" : THROUGH
STROBE (STB)
DRIVER OUT
Characteristics
!!!!
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
Min.10ns
Max.120ns
Min.50nsMin.200ns
Min.100ns
Fig.2
Min.300ns
Max.10µs
Symbol Typ. Unit
-
-
-
Rave
V
H
P
O
SLT
ON
T
-
-
-
-
-
54.21
0.0847
640
1250
24
0.43
0.83
0.28
640
8
φ20.0
150 / 1×10
5~45
8
mm
mm
dots
Ω
V
W / dot
ms
ms
dots
MHz
mm
km / pulses
˚C
Max.10µs

Printheads
Data sheet
!!!!
0.40
0.35
0.30
0.25
0.20
0.15
ENERGY : (mJ / dot)
0.10
0.50
0
0 2 2.50.5 1 1.5
SLT : (ms / line)
Fig.3 Maximum energy curve
1.6
1.4
1.2
1.0
0.8
O.D
0.6
0.4
0.2
0
0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18
ENERGY : (mj / dot)
Fig.4 Representative density curve
0.6SPEED : 4IPS
KF3002-GL50A
180
160
140
120
kΩ)
100
80
60
RESISTANCE : (
40
20
0
−20 −10 10 30 50 700204060
TEMPERATURE : (˚C)
Fig.5 Thermistor curve