Epson FX-870/1170 - Manual (Page 157)

Reference Materials
I Signal Name Function
1 VDC
2 0 READY READY LED
0 STAT STAT LED
( Not equipped)
4 0 FONT FONT LED
5 0 COND ‘CONDENSED LED
6 I PAUSE PAUSE Button
7 I FONT FONT Button
8 I PFEED PAPER FEED Button
9 I OPERA OPERATE Button
10 GND Signal Ground
7-4 Epson FX-870/1170
Table 7-8. Printhead Table 7-11. CN13, Motor
(CO94 MAIN Assembly) (CO94 Board Assembly)
So. Signal Name Function
1 0 HD2 Head Data 2
2 0 c246 Head Drive Common
3 0 HD6 Head Data 6
4 0 HD8 Head Data 8
5 0 HD4 Head Data 4
6 0 Head Data 9
7 I TMP Head Temperature
8 0 c789 Head Drive
9 0 TMP Head Temperature
10 0 Head Data 1
11 0 HD3 Head Data 3
12 0 HD5 Head Data 5
13 0 HD7 Head Data 7
14 0 Head Driie Common
Table 7-9. Rear PE Sensor
(CO94 MAIN Board Assembly)
No. Signal Name Function
1 GND Signal Ground
2 I PER Rear Paper End
3 I LED Paper End LED
Table 7-10. CN12, Control Panel
(CO94 Board Assembly)
No. Signal Name Functlon
I
I
I
CR Motor Phase A
0
0
0
C R B
0 CRCOM
CR Motor Phase
CR Motor Phase
CR Motor Phase B
CR Motor
1
2
3
4
5
6
7
8
9
10
11
Table 7-12. CN14, Power Supply
(CO94 MAIN Board Assembly)
Signal Name
GND
GND
GND
GP
G P
GP
Function
VDC
VDC
Signal Ground
Signal Ground
Signal Ground
Power Ground
Power Ground
Power Ground
VDC
VDC
Power Switch Signal