Datasheet KF3002-GL50A Datasheet (ROHM)

Page 1
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
Page 2
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 30k 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
Page 3
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
V
W / dot
ms
ms dots MHz
mm
km / pulses
˚C
Max.10µs
Page 4
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
k)
100
80 60
RESISTANCE : (
40 20
0
20 10 10 30 50 700204060 TEMPERATURE : (˚C)
Fig.5 Thermistor curve
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