Epson Stylus Photo 1390 - Page 161

EPSON Stylus Photo 1390/1400/1410 Revision B
APPENDIX Connector Summary 161
Table 7-13. Connector CN12: Printhead
Pin Signal I/O Function
1 GND – Ground
2 LAT O HLAT (head latch)
3 GND – Ground
4 NCHG O NCHG (head NCHG)
5 GND – Ground
6 CH_A O HCH (head CH_A)
7 VDD – +3.3V
8 GND – Ground
9 VHV – +42V power supply for printhead
Table 7-14. Connector CN13: ASF Motor
Pin Signal I/O Function
1 ASF-A O ASF motor drive signal (phase A)
2 ASF-B O ASF motor drive signal (phase B)
3 ASF-/A O ASF motor drive signal (phase /A)
4 ASF-/B O ASF motor drive signal (phase /B)
Table 7-15. Connector CN14: Sensors
Pin Signal I/O Function
1GND–Ground
2 GND – Ground
3GND–Ground
4 GND – Ground
5GND–Ground
6 GND – Ground
7 CR-ENCA I CR encoder A signal
8 GND – Ground
9 CR-ENCB I CR encoder B signal
10 EVDD –
Power supply for CR encoder (supports energy
saving feature)
11 LEDON – Paper width sensor LED power supply
12 GND – Ground
13 PW I Paper width sensor signal (analog)
Table 7-16. Connector CN15: CSIC
Pin Signal I/O Function
1 CSDA I/O CDIO (CSIC sent/received data)
2 COI I CO (cartridge detection)
3 CSCK I/O CCLK (CSIC sent/received clock)
4 GND – Ground
5 CRST O CXRST (CSIC reset)
6 CVDD O Power supply for CSIC
7 CH_A O HCH (head CH)
8 ENABLE I CENB
9 VDD – +3.3V
10 GND – Ground
11 COMA_1 – Trapezoid wave
12 GND – Ground
13 VHV – +42V power supply for printhead