Epson FX 890 - B/W Dot-matrix Printer - Page 89

FX-1180/FX-880 Service Manual
Appendix
Rev. B
7-
4
Table 7-6. Connector Pin Assignment - CN5
Pin No. I/O Signal Name Function
1

+5V +5V
2 I PE Rear PE Detector signal
3

GND Ground
Table 7-7. Connector Pin Assignment - CN6
Pin No. I/O Signal Name Function
1 I PE Front PE Detector signal
2

GND Ground
Table 7-8. Connector Pin Assignment - CN7
Pin No. I/O Signal Name Function
1

+5V +5V
2 I HTMP Head temperature signal
3 O HEAD3 #3 Head Data
4 O HEAD1 #1 Head Data
5 O HEAD5 #5 Head Data
6 O C5 #3, 7 Common
7 O HEAD7 #7 Head Data
8 O C4 #5,9 Common
9 O HEAD9 #9 Head Data
10 O HEAD8 #8 Head Data
11 O HEAD4 #4 Head Data
12 O C3 #3 Common
13 O C2 #8 Common
14 O HEAD6 #8 Head Data
15 O C1 #1,4 Common
16 O HEAD2 #2 Head Data
Table 7-9. Connector Pin Assignment - CN8
Pin No. I/O Signal Name Function
1 O PFA PF Motor phase A
2 O PF-A PF Motor phase /A
3 O PFB PF Motor phase B
4 O PF-B PF Motor phase /B
Table 7-10. Connector Pin Assignment - CN9
Pin No. I/O Signal Name Function
1 O CRA CR Motor phase A
2 O CR-A CR Motor phase /A
3 O CRB CR Motor phase B
4 O CR-B CR Motor phase /B
5

+35V Common