Chapter 4 ELECTRICAL SIGNALS
4.7 THERMAL BOARD (PK-268)
XJ2
No. Signal Name Direction Opposite Side
1 PS (Paper sensor receiver) ←
2 VPS (Paper sensor receiver) →
3,4,11,12,
13,14,25
GND
-
5
HS(platen position sensor) ←
6,19,20
DC+24V(Head drive power supply) -
7,8,9,16,
17,18
Thermal head control signal
←→
10 DC+5V -
15 TH (Thermistor input signal) ←
21 MOTOR_A →
22 MOTOR_B →
23 MOTER_A# →
24 MOTER_B# →
26 CUTS (Cutter sensor) ←
27 CUTB (Cutter motor) →
28 CUTA (Cutter motor) →
PK-269 XJ1
XJ4
No. Signal Name Direction Opposite Side
1 CD+24V -
2 DC+24V -
3 DC+24V -
4 GND -
5 GND -
6 GND -
PK-260 XJ23
UNI-7 Service Manual 4-13
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