KD2003-DC10A Datasheet, PDF (2/4 Pages) Rohm – Thick film thermal printhead (8 dots / mm)

Printheads
zEquivalent circuit
VH
VSF
GND
VDD
STB2
STB1
N.C.
/LAT
KD2003-DC10A
DOT #640
L/S
#640
#321
DOT #1
#320
#1
LATCH REGISTER
CLK
DI4
DO4
DI3
DO3
DI2
DO2
DI1
DO1
TM
TM
CONNECTOR
SHIFT
REGISTER
SHIFT
REGISTER
SHIFT
REGISTER
SHIFT
REGISTER
THERMISTOR
30kΩ B: 3950K
VSF : Usually VSF and VH are connected.
When measuring R value of Heat-
element , VSF and VH should be
separated.
DI No.
DI1
DI2
DI3
DI4
DOT No.
1 to 192
193 to 320
321 to 512
513 to 640
Fig. 1
STB No. DOT No.
STB1
1 to 320
STB2 321 to 640
zPin assignments
CONNECTOR A
No. Circuit No.
1
GND
11
2
VSF
12
3
GND
13
4
VDD
14
5
STB2
15
6
CLK
16
7
DI4
17
8
DO4
18
9
N.C.
19
10
LAT
20
Circuit
TM
TM
DI3
DO3
DI2
DO2
N.C.
STB1
DI1
DO1
CONNECTOR B
No.
Circuit
1
VH
2
VH
3
VH
4
GND
5
GND
6
GND
2/3