Service manual

HTTP://BBS.FIXCLUB.COM.CN
EPSON LQ-300+ Revision C
Appendix Connector Summary 85
Table 7-10. CN11-PF Motor
Pin I/O Signal Name Function
1 O PFA Paper feed motor phase A
2 O PFA Paper feed motor phase A
3 O PFB Paper feed motor phase B
4 O PFB Paper feed motor phase B
Table 7-11. CN12-CS Motor
Pin I/O Signal Name Function
1 - VH +35VDC
2 - CS/HOLD +5VDC
3 - +5V +5VDC
4 O CSA CS motor phase A
5O CSXA CS motor phase XA
6 O CSB CS motor phase B
7O CSXB CS motor phase XB
8 - GP Signal ground
9 I CSSW Color ribbon sensor signal
10 - GND Signal ground
Table 7-12. CN13-Operation Panel C294PNL
Pin I/O Signal Name Function
1 - +5V +5VDC
2 O LED5 LED5
3 O LED4 LED4
4 O LED3 LED3
5 O LED2 LED2
6 O LED1 LED1
7 I SW1 Switch 1
8 - GND Signal ground
9 - GND Signal ground
10 I SW2 Switch 2
11 I SW3 Switch 3
12 I SW4 Switch 4
Table 7-13. CN16-Head
Pin I/O Signal Name Function
1TH1Thermister1
2 TH2 Thermister2
3 HD4 Head data 4
4 HD20 Head data 20
5 HD8 Head data 8
6 HD12 Head data 12
7 HD16 Head data 16
8 HD24 Head data 24
9 HDCOM Common (VP)
10 HDCOM Common (VP)
11 HDCOM Common (VP)
12 HD17 Head data 17
13 HD21 Head data 21
14 HD9 Head data 9
Table 7-12. CN13-Operation Panel C294PNL
Pin I/O Signal Name Function